Cellular differentiation and individuality in the 'minor' multicellular taxa

Biological Reviews

Volumn 88, Issue 4, 2013, Pages 844-861

  Herron, Matthew D ^a,b   Rashidi, Armin ^a,c   Shelton, Deborah E ^a   Driscoll, William W ^a  

^a University of Arizona   (United States)

^b UNIVERSITY OF MONTANA   (United States)

^c EASTERN VIRGINIA MEDICAL SCHOOL   (United States)

Author keywords

Cellular differentiation; Individuality; Life history; Major transitions; Multicellularity; Organisms; Symbiosis

Indexed keywords

BACTERIA (MICROORGANISMS); EUKARYOTA;

ANIMALS; CELL DIFFERENTIATION; CYTOLOGY; EUKARYOTA; SPECIES SPECIFICITY;

ANIMALS; CELL DIFFERENTIATION; EUKARYOTA; SPECIES SPECIFICITY;

EID: 84884975022     PISSN: 14647931     EISSN: 1469185X     Source Type: Journal    
DOI: 10.1111/brv.12031     Document Type: Article

References (159)

1. Agutter, P. S. & Tuszynski, J. A. (2011). Analytic theories of allometric scaling. Journal of Experimental Biology 214, 1055-1062.
2. Ariew, A. & Lewontin, R. C. (2004). The confusions of fitness. British Journal for the Philosopy of Science 55, 347-363.
3. Ayre, D. J. & Grosberg, R. K. (2005). Behind anemone lines: factors affecting division of labour in the social cnidarian Anthopleura elegantissima. Animal Behaviour 70, 97-110.
4. Baldauf, S. L. (2003). The deep roots of eukaryotes. Science 300, 1703-1706.
5. Baldauf, S. L. (2008). An overview of the phylogeny and diversity of eukaryotes. Journal of Systematic Evolution 46, 263-273.
6. Baldauf, S. L. & Doolittle, W. F. (1997). Origin and evolution of the slime molds (Mycetozoa). Proceedings of the National Academy of Sciences of the United States of America 94, 12007-12012.
7. Baldauf, S. L., Roger, A. J., Wenk-Siefert, I. & Doolittle, W. F. (2000). A kingdom-level phylogeny of eukaryotes based on combined protein data. Science 290, 972-977.
8. Bauer-Nebelsick, M., Bardele, C. F. & Ott, J. A. (1996a). Electron microscopic studies on Zoothamnium niveum (Hemprich & Ehrenberg, 1831) Ehrenberg 1838 (Oligohymenophora, Peritrichida), a ciliate with ectosymbiotic, chemoautotrophic bacteria. European Journal of Protistology 32, 202-215.
9. Bauer-Nebelsick, M., Bardele, C. F. & Ott, J. A. (1996b). Redescription of Zoothamnium niveum (Hemprich & Ehrenberg, 1831) Ehrenberg, 1838 (Oligohymenophora, Peritrichida), a ciliate with ectosymbiotic, chemoautotrophic bacteria. European Journal of Protistology 32, 18-30.
10. Berbee, M. L. & Taylor, J. W. (2007). Rhynie chert: a window into a lost world of complex plant-fungus interactions. New Phytologist 174, 475-479.
11. Berney, C. & Pawlowski, J. (2006). A molecular time-scale for eukaryote evolution recalibrated with the continuous microfossil record. Proceedings of the Royal Society of London B 273, 1867-1872.
12. Bhattacharya, D., Yoon, H. S., Hedges, S. B. & Hackett, J. D. (2009). Eukaryotes (Eukaryota). In The Tme Tree of Life (eds S. B. Hedges and S. Kumar ), pp. 116-120. Oxford University Press, New York.
13. Blaskovics, J. C. & Raper, K. B. (1957). Encystment stages of Dictyostelium. The Biological Bulletin 113, 58-88.
14. Bloomfield, G., Skelton, J., Ivens, A., Tanaka, Y. & Kay, R. R. (2010). Sex determination in the social amoeba Dictyostelium discoideum. Science 330, 1533-1536.
15. Bold, H. C. & Wynne, M. J. (1985). Introduction to the Algae. Second Edition. Prentice Hall, Inc., Englewood Cliffs.
16. Bonner, J. T. (1998). The origins of multicellularity. Integrative Biology 1, 27-36.
17. Bonner, J. T. (2008). The Social Amoebae: The Biology of Cellular Slime Molds. Princeton University Press, Princeton.
18. Bremer, K., Humphries, C. J., Mishler, B. D. & Churchill, S. P. (1987). On cladistic relationships in green plants. Taxon 36, 339-349.
19. Brown, J. W. & Sorhannus, U. (2010). A molecular genetic timescale for the diversification of autotrophic stramenopiles (Ochrophyta): substantive underestimation of putative fossil ages. PLoS ONE 5, e12759.
20. Burger, G., Saint-Louis, D., Gray, M. W. & Lang, B. F. (1999). Complete sequence of the mitochondrial DNA of the red alga Porphyra purpurea: cyanobacterial introns and shared ancestry of red and green algae. The Plant Cell 11, 1675-1694.
21. Burnet, F. M. (1969). Self and Not-Self: Cellular Immunology. Cambridge University Press, Cambridge.
22. Buss, L. W. (1983). Evolution, development, and the units of selection. Proceedings of the National Academy of Sciences of the United States of America 80, 1387-1391.
23. Buss, L. W. (1987). The Evolution of Individuality. Princeton University Press, Princeton.
24. Butterfield, N. J., Knoll, A. H. & Swett, K. (1988). Exceptional preservation of fossils in an Upper Proterozoic shale. Nature 334, 424-427.
25. Butterfield, N. J., Knoll, A. H. & Swett, K. (1990). A bangiophyte red alga from the Proterozoic of arctic Canada. Science 250, 104-107.
26. Callahan, A. & Huskey, R. (1980). Genetic control of sexual development in Volvox. Developmental Biology 80, 419-435.
27. Carroll, S. B. (2001). Chance and necessity: the evolution of morphological complexity and diversity. Nature 409, 1102-1109.
28. Castillo, D. I., Queller, D. C. & Strassmann, J. E. (2011). Cell condition, competition, and chimerism in the social amoeba Dictyostelium discoideum. Ethology Ecology and Evolution 23, 262-273.
29. Cavalier-Smith, T. (1998). A revised six-kingdom system of life. Biological Reviews of the Cambridge Philosophical Society 73, 203-266.
30. Charrier, B., Coelho, S. M., Le Bail, A., Tonon, T., Michel, G., Potin, P., Kloareg, B., Boyen, C., Peters, A. F. & Cock, J. M. (2008). Development and physiology of the brown alga Ectocarpus siliculosus: two centuries of research. New Phytologist 177, 319-332.
31. Clamp, J. C. & Williams, D. (2006). A molecular phylogenetic investigation of Zoothamnium (Ciliophora, Peritrichia, Sessilida). Journal of Eukaryotic Microbiology 53, 494-498.
32. Clarke, E. (2010). The problem of biological individuality. Biological Theory 5, 312-325.
33. Clarke, E. (2012). Plant individuality: a solution to the demographer's dilemma. Biology and Philosophy 27, 321-361.
34. Clayton, M. N. (1990). Phylum Phaeophyta. In Handbook of Protoctista (eds L. Margulis, J. O. Corliss, M. Melkonian and D. J. Chapman ), pp. 698-714. Jones and Bartlett Publishers, Boston.
35. Cock, J. M., Sterck, L., Rouzé, P., Scornet, D., Allen, A. E., Amoutzias, G., Anthouard, V., Artiguenave, F., Aury, J.-M., Badger, J. H., Beszteri, B., Billiau, K., Bonnet, E., Bothwell, J. H. F., Bowler, C., Boyen, C., Brownlee, C., Carrano, C. J., Charrier, B., Cho, G. Y., Coelho, S. M., Collén, J., Corre, E., Da Silva, C., Delage, L., Delaroque, N., Dittami, S. M., Doulbeau, S., Elias, M., Farnham, G., Gachon, C. M. M., Gschloessl, B., Heesch, S., Jabbari, K., Jubin, C., Kawai, H., Kimura, K., Kloareg, B., Küpper, F. C., Lang, D., Le Bail, A., Leblanc, C., Lerouge, P., Lohr, M., Lopez, P. J., Martens, C., Maumus, F., Michel, G., Miranda-Saavedra, D., Morales, J., Moreau, H., Motomura, T., Nagasato, C., Napoli, C. A., Nelson, D. R., Nyvall-Collén, P., Peters, A. F., Pommier, C., Potin, P., Poulain, J., Quesneville, H., Read, B., Rensing, S. A., Ritter, A., Rousvoal, S., Samanta, M., Samson, G., Schroeder, D. C., Ségurens, B., Strittmatter, M., Tonon, T., Tregear, J., Valentin, K., von Dassow, P., Yamagishi, T., Van de Peer, Y. & Wincker, P. (2010). The Ectocarpus genome and the independent evolution of multicellularity in the brown algae. Nature 465, 617-621.
36. Coomans, R. J. & Hommersand, M. H. (1990). Vegetative growth and organization. In Biology of the Red Algae (eds K. M. Cole and R. G. Sheath ), pp. 275-304. Cambridge University Press, New York.
37. DeLong, J. P., Okie, J. G., Moses, M. E., Sibly, R. M. & Brown, J. H. (2010). Shifts in metabolic scaling, production, and efficiency across major evolutionary transitions of life. Proceedings of the National Academy of Sciences of the United States of America 107, 12941-12945.
38. Dunthorn, M. & Katz, L. A. (2010). Secretive ciliates and putative asexuality in microbial eukaryotes. Trends in Microbiology 18, 183-188.
39. Eldakar, O. T. & Wilson, D. S. (2011). Eight criticisms not to make about group selection. Evolution 65, 1523-1526.
40. Erdos, G. W., Raper, K. B. & Vogen, L. K. (1973). Mating types and macrocyst formation in Dictyostelium discoideum. Proceedings of the National Academy of Sciences of the United States of America 70, 1828-1830.
41. Fauré-Fremiet, E. (1930). Growth and differentiation of the colonies of Zoothamnium alternans (Clap. and Lachm.). The Biological Bulletin 58, 28-51.
42. Filosa, M. & Dengler, R. (1972). Ultrastructure of macrocyst formation in the cellular slime mold, Dictyostelium mucoroides: extensive phagocytosis of amoebae by a specialized cell. Developmental Biology 29, 1-16.
43. Fiore-Donno, A. M., Nikolaev, S. I., Nelson, M., Pawlowski, J., Cavalier-Smith, T. & Baldauf, S. L. (2010). Deep phylogeny and evolution of slime moulds (Mycetozoa). Protist 161, 55-70.
44. Fjeld, A. (1972). Genetic control of cellular differentiation in Ulva mutabilis. Gene effects in early development. Developmental Biology 28, 326-343.
45. Flowers, J. M., Li, S. I., Stathos, A., Saxer, G., Ostrowski, E. A., Queller, D. C., Strassmann, J. E. & Purugganan, M. D. (2010). Variation, sex, and social cooperation: molecular population genetics of the social amoeba Dictyostelium discoideum. PLoS Genetics 6, e1001013.
46. Folse, H. J. & Roughgarden, J. (2010). What is an individual organism? A multilevel selection perspective. The Quarterly Review of Biology 85, 447-472.
47. Foster, K. R., Fortunato, A., Strassmann, J. E. & Queller, D. C. (2002). The costs and benefits of being a chimera. Proceedings of the Royal Society of London B 269, 2357-2362.
48. Föyn, B. (1958). Über die Sexualität und den Generationswechsel von Ulva mutabilis (N.S.). Archiv für Protistenkunde 102, 473-480.
49. Garbary, D. J. & Gabrielson, P. W. (1990). Taxonomy and evolution. In Biology of the Red Algae (eds K. M. Cole and R. G. Sheath ), pp. 477-498. Cambridge University Press, New York.
50. Glöckner, G., Golderer, G., Werner-Felmayer, G., Meyer, S. & Marwan, W. (2008). A first glimpse at the transcriptome of Physarum polycephalum. BMC Genomics 9, 6.
51. Godfrey-Smith, P. (2009). Darwinian Populations and Natural Selection. Oxford University Press, Oxford.
52. Graham, L. E. & Wilcox, L. W. (2000). Algae. Prentice Hall, Upper Saddle River.
53. Grosberg, R. K. & Strathmann, R. R. (2007). The evolution of multicellularity: a minor major transition? Annual Review of Ecology, Evolution, and Systematics 38, 621-654.
54. Hackett, J. D., Yoon, H. S., Butterfield, N. J., Sanderson, M. J. & Bhattacharya, D. (2007). Plastid endosymbiosis: sources and timing of the major events. In Evolution of Primary Producers in the Sea (eds P. Falkowski and A. Knoll ), pp. 109-132. Elsevier Academic Press, Burlington.
55. Hawkes, M. W. (1990). Reproductive strategies. In Biology of the Red Algae (eds K. M. Cole and R. G. Sheath ), pp. 455-476. Cambridge University Press, New York.
56. Hedges, S. B., Blair, J. E., Venturi, M. L. & Shoe, J. L. (2004). A molecular timescale of eukaryote evolution and the rise of complex multicellular life. BMC Evolutionary Biology 4, 2.
57. Heesch, S., Cho, G. Y., Peters, A. F., Le Corguillé, G., Falentin, C., Boutet, G., Cöedel, S., Jubin, C., Samson, G., Corre, E., Coelho, S. M. & Cock, J. M. (2010). A sequence-tagged genetic map for the brown alga Ectocarpus siliculosus provides large-scale assembly of the genome sequence. New Phytologist 188, 42-51.
58. Herron, M. D., Hackett, J. D., Aylward, F. O. & Michod, R. E. (2009). Triassic origin and early radiation of multicellular volvocine algae. Proceedings of the National Academy of Sciences of the United States of America 106, 3254-3258.
59. van den Hoek, C., Mann, D. G. & Jahns, H. M. (1995). Algae: An Introduction to Phycology. Cambridge University Press, New York.
60. Hoxmark, R. C. & Nordby, Ø. (1974). Haploid meiosis as a regular phenomenon in the life cycle of Ulva mutabilis. Hereditas 76, 239-250.
61. Hull, D. L. (1980). Individuality and selection. Annual Review of Ecology and Systematics 11, 311-332.
62. Hutchings, M. J. & Booth, D. (2004). Much ado about nothing.. so far? Journal of Evolutionary Biology 17, 1184-1186.
63. Huxley, J. S. (1912). The Individual in the Animal Kingdom. Cambridge University Press, Cambridge.
64. Janzen, D. H. (1977). What are dandelions and aphids? American Naturalist 111, 586-589.
65. Ji, D. & Kusuoka, Y. (2009). A description of Apocarchesium rosettum n. gen., n. sp. and a redescription of Ophrydium eichornii Ehrenberg, 1838, two freshwater peritrichous ciliates from Japan. European Journal of Protistology 45, 21-28.
66. Ji, D. & Song, W. (2004). Notes on a new marine peritrichous ciliate (Ciliophora: Peritrichida), Zoothamnopsis sinica sp. n. from North China, with reconsideration of Zoothamnium maximum Song, 1986. Acta Protozoologica 43, 61-71.
67. Joint, I., Callow, M. E., Callow, J. A. & Clarke, K. R. (2000). The attachment of Enteromorpha zoospores to a bacterial biofilm assemblage. Biofouling 16, 37-41.
68. Joint, I., Tait, K., Callow, M. E., Callow, J. A., Milton, D., Williams, P. & Cámara, M. (2002). Cell-to-cell communication across the prokaryote-eukaryote boundary. Science 298, 1207.
69. Karol, K. G., McCourt, R. M., Cimino, M. T. & Delwiche, C. F. (2001). The closest living relatives of land plants. Science 294, 2351-2353.
70. Kessin, R. H. (2001). Dictyostelium: Evolution, Cell Biology, and the Development of Multicellularity. Cambridge University Press, Cambridge.
71. Kirk, D. L. (1998). Volvox: Molecular-Genetic Origins of Multicellularity and Cellular Differentiation. Cambridge University Press, Cambridge.
72. Kirk, D. L. (2001). Germ-soma differentiation in Volvox. Developmental Biology 238, 213-223.
73. Kirk, D. L. & Kirk, M. M. (1986). Heat shock elicits production of sexual inducer in Volvox. Science 231, 51-54.
74. Kitade, Y., Taguchi, G., Shin, J.-A. & Saga, N. (1998). Porphyra monospore system (Bangiales, Rhodophyta): a model for the developmental biology of marine plants. Phycological Research 46, 17-20.
75. Knoll, A. H. (2011). The multiple origins of complex multicellularity. Annual Review of Earth and Planetary Sciences 39, 217-239.
76. Konijn, T. M., Van De Meene, J., Bonner, J. T. & Barkley, D. S. (1967). The acrasin activity of adenosine-3', 5'-cyclic phosphate. Proceedings of the National Academy of Sciences of the United States of America 58, 1152-1154.
77. Lasek-Nesselquist, E. & Katz, L. A. (2001). Phylogenetic position of Sorogena stoianovitchae and relationships within the class Colpodea (Ciliophora) based on SSU rDNA sequences. Journal of Eukaryotic Microbiology 48, 604-607.
78. Le Bail, A., Billoud, B., Maisonneuve, C., Peters, A. F., Cock, J. M. & Charrier, B. (2008). Early development pattern of the brown alga Ectocarpus siliculosus (Ectocarpales, Phaeophyceae) sporophyte. Journal of Phycology 44, 1269-1281.
79. Lewis, L. A. & McCourt, R. M. (2004). Green algae and the origin of land plants. American Journal of Botany 91, 1535-1556.
80. Lewontin, R. C. (1970). The units of selection. Annual Review of Ecology and Systematics 1, 1-18.
81. Li, L., Song, W., Warren, A., Shin, M. K., Chen, Z., Ji, D. & Sun, P. (2008). Reconsideration of the phylogenetic positions of five peritrich genera, Vorticella, Pseudovorticella, Zoothamnopsis, Zoothamnium, and Epicarchesium (Ciliophora, Peritrichia, Sessilida), based on small subunit rRNA gene sequences. Journal of Eukaryotic Microbiology 55, 448-456.
82. Løvlie, A. (1964). Genetic control of division rate and morphogenesis in Ulva mutabilis Foeyn. Comptes-Rendus des Travaux du Laboratoire Carlsberg 34, 77-168.
83. Marwan, W., Sujatha, A. & Starostzik, C. (2005). Reconstructing the regulatory network controlling commitment and sporulation in Physarum polycephalum based on hierarchical Petri Net modelling and simulation. Journal of Theoretical Biology 236, 349-365.
84. Mattox, K. R. & Stewart, K. D. (1984). Classification of the green algae: a concept based on comparative cytology. In The Systematics of Green Algae (eds D. E. G. Irvine and D. M. John ), pp. 29-72. Academic Press, London.
85. Maynard Smith, J. & Szathmáry, E. (1997). The Major Transitions in Evolution. Oxford University Press, Oxford.
86. McShea, D. W. (1996). Perspective: metazoan complexity and evolution: is there a trend? Evolution 50, 477-492.
87. Meeks, J. C. & Elhai, J. (2002). Regulation of cellular differentiation in filamentous cyanobacteria in free-living and plant-associated symbiotic growth states. Microbiology and Molecular Biology Reviews 66, 94-121.
88. Michod, R. E. (1997). Evolution of the individual. American Naturalist 150, S5-S21.
89. Michod, R. E. (2003). Cooperation and conflict mediation during the origin of multicellularity. In Genetic and Cultural Evolution of Cooperation (ed. P. Hammerstein ), pp. 261-307. MIT Press, Cambridge.
90. Michod, R. E. (2011). Evolutionary transitions in individuality: multicellularity and sex. In The Major Transitions in Evolution Revisited (eds B. Calcott and K. Sterelny ), pp. 167-197. MIT Press, Cambridge.
91. Michod, R. E. & Nedelcu, A. M. (2003). On the reorganization of fitness during evolutionary transitions in individuality. Integrative and Comparative Biology 43, 64-73.
92. Michod, R. E. & Roze, D. (1997). Transitions in individuality. Proceedings of the Royal Society of London B 264, 853-857.
93. Michod, R. E., Viossat, Y., Solari, C. A., Hurand, M. & Nedelcu, A. M. (2006). Life-history evolution and the origin of multicellularity. Journal of Theoretical Biology 239, 257-272.
94. Mitman, G. G. & van de Meer, J. P. (1994). Meiosis, blade development, and sex determination in Porphyra purpurea (Rhodophyta). Journal of Phycology 30, 147-159.
95. Moreira, D., LeGuyader, H. & Phillipe, H. (2000). The origin of red algae and the evolution of chloroplasts. Nature 405, 69-72.
96. Mori, S., Yamazaki, A., Matsuyama Serisawa, K., Fukuda, S., Mizuta, H. & Saga, N. (2004). Effect of two symbiotic bacteria for growth of Porphyra yezoensis (Rhodophyta, Bangiales) in axenic culture. Suisanzoshoku 52, 239-244.
97. Müller, D. G. (1967). Generationswechsel, Kernphasenwechsel und Sexualität der Braunalge Ectocarpus siliculosus im Kulturversuch. Planta 75, 39-54.
98. Nickerson, A. W. & Raper, K. B. (1973). Macrocysts in the life cycle of the Dictyosteliaceae. I. Formation of the macrocysts. American Journal of Botany 60, 190-197.
99. Niklas, K. J. (2000). The evolution of plant body plans - A biomechanical perspective. Annals of Botany 85, 411-438.
100. Nishii, I. & Miller, S. M. (2010). Volvox: simple steps to developmental complexity? Current Opinion in Plant Biology 13, 646-653.
101. Norf, H. & Foissner, W. (2010). A new flagship peritrich (Ciliophora, Peritrichida) from the River Rhine, Germany: Apocarchesium arndti n. sp. Journal of Eukaryotic Microbiology 57, 250-264.
102. Nozaki, H., Kuroiwa, H., Mita, T. & Kuroiwa, T. (1989). Pleodorina japonica sp. nov. (Volvocales, Chlorophyta) with bacteria-like endosymbionts. Phycologia 28, 252-267.
103. O'Day, D. H. (1979). Aggregation during sexual development in Dictyostelium discoideum. Canadian Journal of Microbiology 25, 1416-1426.
104. Ohme, M., Kunifuji, Y. & Miura, A. (1986). Cross experiments in the color mutants of Porphyra yezoensis Ueda. Japanese Journal of Phycology 34, 101-106.
105. Olive, L. S. (1975). The Mycetozoans. Academic Press, New York.
106. Olive, L. S. (1978). Sorocarp development by a newly discovered ciliate. Science 202, 530.
107. Olive, L. S. & Stoianovitch, C. (1960). Two new members of the Acrasiales. Bulletin of the Torrey Botanical Club 87, 1-20.
108. Ostrowski, E. A., Katoh, M., Shaulsky, G., Queller, D. C. & Strassmann, J. E. (2008). Kin discrimination increases with genetic distance in a social amoeba. PLoS Biology 6, e287.
109. Otto, S. & Hastings, I. (1998). Mutation and selection within the individual. Genetica 102-103, 507-552.
110. Pedersen, B. & Tuomi, J. (1995). Hierarchical selection and fitness in modular and clonal organisms. Oikos 73, 167-180.
111. Pepper, J. W. & Herron, M. D. (2008). Does biology need an organism concept? Biological Reviews of the Cambridge Philosophical Society 83, 621-627.
112. Peters, A. F., Marie, D., Scornet, D., Kloareg, B. & Cock, J. M. (2004). Proposal of Ectocarpus siliculosus (Ectocarpales, Phaeophyceae) as a model organism for brown algal genetics and genomics. Journal of Phycology 40, 1079-1088.
113. Pineda-Krch, M. & Lehtilä, K. (2004). Costs and benefits of genetic heterogeneity within organisms. Journal of Evolutionary Biology 17, 1167-1177.
114. Polne-Fuller, M. & Gibor, A. (1984). Developmental studies in Porphyra. I. Blade differentiation in Porphyra perforata as expressed by morphology, enzymatic digestion, and protoplast regeneration. Journal of Phycology 20, 609-616.
115. Pueschel, C. M. (1990). Cell structure. In Biology of the Red Algae (eds K. M. Cole and R. G. Sheath ), pp. 477-498. Cambridge University Press, New York.
116. Queller, D. C. (1997). Cooperators since life began. The Quarterly Review of Biology 72, 184-188.
117. Queller, D. C. & Strassmann, J. E. (2009). Beyond society: the evolution of organismality. Philosophical Transactions of the Royal Society B 364, 3143-3155.
118. de Reviers, B. (2002). Biologie et Phylogénie des Agues, Tome 1. Belin, Paris.
119. Rinke, C., Lee, R., Katz, S. & Bright, M. (2007). The effects of sulphide on growth and behaviour of the thiotrophic Zoothamnium niveum symbiosis. Proceedings of the Royal Society B 274, 2259-2269.
120. Rinke, C., Schmitz-Esser, S., Stoecker, K., Nussbaumer, A. D., Molnár, D. A., Vanura, K., Wagner, M., Horn, M., Ott, J. A. & Bright, M. (2006). "Candidatus Thiobios zoothamnicoli, " an ectosymbiotic bacterium covering the giant marine ciliate Zoothamnium niveum. Applied and Environmental Microbiology 72, 2014-2021.
121. Rodríguez-Ezpeleta, N., Brinkmann, H., Burey, S. C., Roure, B., Burger, G., Löffelhardt, W., Bohnert, H. J., Philippe, H. & Lang, B. F. (2005). Monophyly of primary photosynthetic eukaryotes: green plants, red algae, and glaucophytes. Current Biology 15, 1325-1530.
122. Rohwer, F., Seguritan, V., Azam, F. & Knowlton, N. (2002). Diversity and distribution of coral-associated bacteria. Marine Ecology Progress Series 243, 1-10.
123. Roze, D. & Michod, R. E. (2001). Mutation, multilevel selection, and the evolution of propagule size during the origin of multicellularity. American Naturalist 158, 638-654.
124. Saga, Y., Okada, H. & Yanagisawa, K. (1983). Macrocyst development in Dictyostelium discoideum II. Mating-type-specific cell fusion and acquisition of fusion-competence. Journal of Cell Science 60, 157-168.
125. Santelices, B. (1999). How many kinds of individual are there? Trends in Ecology & Evolution 14, 152-155.
126. Sarukhán, J. & Harper, J. L. (1973). Studies on plant demography: Ranunculus repens L., R. bulbosus L. and R. acris L.: I. Population flux and survivorship. Journal of Ecology 61, 675-716.
127. Saunders, G. W. & Hommersand, M. H. (2004). Assessing red algal supraordinal diversity and taxonomy in the context of contemporary systematic data. American Journal of Botany 91, 1494-1507.
128. Schaap, P., Winckler, T., Nelson, M., Alvarez-Curto, E., Elgie, B., Hagiwara, H., Cavender, J., Milano-Curto, A., Rozen, D. E., Dingermann, T., Mutzel, R. & Baldauf, S. L. (2006). Molecular phylogeny and evolution of morphology in the social amoebas. Science 314, 661-663.
129. Shadwick, L. L., Spiegel, F. W., Shadwick, J. D. L., Brown, M. W. & Silberman, J. D. (2009). Eumycetozoa = Amoebozoa?: SSUrDNA phylogeny of protosteloid slime molds and its significance for the amoebozoan supergroup. PLoS ONE 4, e6754.
130. Shaulsky, G. & Kessin, R. (2007). The cold war of the social amoebae. Current Biology 17, R684-R692.
131. Solari, C. A., Nedelcu, A. M. & Michod, R. E. (2004). Fitness and complexity in Volvocalean green algae. In Computational Synthesis, From Basic Building Blocks to High Level Functionality (eds H. Lipson, E. K. Antonsson and J. R. Koza ), pp. 218-225. AAAI Press, Stanford.
132. Starr, R. C. (1969). Structure, reproduction and differentiation in Volvox carteri f. nagariensis Iyengar, strains HK9 & 10. Archiv für Protistenkunde 111, 204-222.
133. Starr, R. C. (1970). Control of differentiation in Volvox. Developmental Biology 29, S59-S100.
134. Starr, R. C. (1975). Meiosis in Volvox carteri f. nagariensis. Archiv für Protistenkunde 117, 187-191.
135. Sterelny, K. (2011). Darwinian spaces: Peter Godfrey-Smith on selection and evolution. Biology and Philosophy 26, 489-500.
136. Stout, A. B. (1929). The clon in plant life. Journal of the New York Botanical Garden 30, 25-37.
137. Strassmann, J. E. & Queller, D. C. (2010). The social organism: congresses, parties, and committees. Evolution 64, 605-616.
138. Strassmann, J. E. & Queller, D. C. (2011a). Evolution of cooperation and control of cheating in a social microbe. Proceedings of the National Academy of Sciences of the United States of America 108, 10855-10862.
139. Strassmann, J. E. & Queller, D. C. (2011b). How social evolution theory impacts our understanding of development in the social amoeba Dictyostelium. Development, Growth & Differentiation 53, 597-607.
140. Stratmann, J., Paputsoglu, G. & Oertel, W. (1996). Differentiation of Ulva mutabilis (Chlorophyta) gametangia and gamete release are controlled by extracellular inhibitors. Journal of Phycology 32, 1009-1021.
141. Sugimoto, H. & Endoh, H. (2006). Analysis of fruiting body development in the aggregative ciliate Sorogena stoianovitchae (Ciliophora, Colpodea). Journal of Eukaryotic Microbiology 53, 96-102.
142. Sugimoto, H. & Endoh, H. (2008). Differentially expressed genes during fruiting body development in the aggregative ciliate Sorogena stoianovitchae (Ciliophora: Colpodea). Journal of Eukaryotic Microbiology 55, 110-116.
143. Summers, F. M. (1938a). Form regulation in Zoothamnium alternans. The Biological Bulletin 74, 130-154.
144. Summers, F. M. (1938b). Some aspects of normal development in the colonial ciliate Zoothamnium alternans. The Biological Bulletin 74, 117-129.
145. Sun, P., Clamp, J. C., Xu, D., Kusuoka, Y. & Hori, M. (2011). Molecular phylogeny of the family Vorticellidae (Ciliophora, Peritrichia) using combined datasets with a special emphasis on the three morphologically similar genera Carchesium, Epicarchesium and Apocarchesium. International Journal of Systematic and Evolutionary Microbiology 61, 1001-1010.
146. Tuomi, J. & Vuorisalo, T. (1989). What are the units of selection in modular organisms? Oikos 54, 227-233.
147. Van de Peer, Y. & De Wachter, R. (1997). Evolutionary relationships among the eukaryotic crown taxa taking into account site-to-site rate variation in 18S rRNA. Journal of Molecular Evolution 45, 619-630.
148. Viljoen, S. & As, J. G. (1987). Notes on the morphology and asexual reproductive processes of sessile peritrichs. Hydrobiologia 154, 75-86.
149. Wallace, M. A. & Raper, K. B. (1979). Genetic exchanges in the macrocysts of Dictyostelium discoideum. Journal of General Microbiology 113, 327-337.
150. Wang, J., Zhu, J., Zhou, W., Jiang, P., Qin, S. & Xu, P. (2009). Early development patterns and morphogenesis of blades in four species of Porphyra (Bangiales, Rhodophyta). Journal of Applied Phycology 22, 297-303.
151. Webb, J. S., Givskov, M. & Kjelleberg, S. (2003). Bacterial biofilms: prokaryotic adventures in multicellularity. Current Opinion in Microbiology 6, 578-585.
152. Weismann, A. (1904). The Evolution Theory. Edward Arnold, London.
153. West, G. B., Brown, J. H. & Enquist, B. J. (1997). A general model for the origin of allometric scaling laws in biology. Science 276, 122-126.
154. Whitworth, D. E. (ed.) (2008). Myxobacteria: Multicellularity and Differentiation. American Society for Microbiology, Washington.
155. Wilson, J. (1999). Biological Individuality: The Identity and Persistence of Living Entities. Cambridge University Press, Cambridge.
156. Wilson, J. A. (2000). Ontological butchery: organism concepts and biological generalizations. Philosophy of Science 67, S301-S311.
157. Yamazaki, A., Nakanishi, K. & Saga, N. (1998). Axenic tissue culture and morphogenesis in Porphyra yezoensis (Bangiales, Rhodophyta). Journal of Phycology 34, 1082-1087.
158. Yoon, H. S., Hackett, J. D., Ciniglia, C., Pinto, G. & Bhattacharya, D. (2004). A molecular timeline for the origin of photosynthetic eukaryotes. Molecular Biology and Evolution 21, 809-818.
159. Yoon, H. S., Müller, K. M., Sheath, R. G., Ott, F. D. & Bhattacharya, D. (2006). Defining the major lineages of red algae (Rhodophyta). Journal of Phycology 42, 482-492.