Molecular data reveal isolation by distance and past population expansion for the shea tree (Vitellaria paradoxa C.F. Gaertn) in West Africa

Molecular Ecology

Volumn 20, Issue 19, 2011, Pages 4009-4027

  Logossa, Zénor Ablah ^a   Camus Kulandaivelu, Létizia ^b   Allal, François ^b   Vaillant, Alexandre ^b   Sanou, Haby ^c   Kokou, Kouami ^a   Bouvet, Jean Marc ^b  

^a UNIVERSITY OF LOMÉ   (Togo)

^b Institut d'Economie Rurale Mali   (Mali)

^c CIRAD   (France)

Author keywords

approximate Bayesian computation; chloroplast microsatellites; expansion; genetic variation; mismatch distribution; nuclear microsatellites; Vitellaria paradoxa; West Africa

Indexed keywords

MICROSATELLITE DNA;

AFRICA; ARTICLE; BAYES THEOREM; GENE FLOW; GENETIC VARIABILITY; GENETICS; PHYLOGEOGRAPHY; PHYSIOLOGY; POPULATION DENSITY; POPULATION DYNAMICS; REPRODUCTIVE ISOLATION; SAPOTACEAE;

AFRICA, WESTERN; BAYES THEOREM; GENE FLOW; GENETIC VARIATION; MICROSATELLITE REPEATS; PHYLOGEOGRAPHY; POPULATION DENSITY; POPULATION DYNAMICS; REPRODUCTIVE ISOLATION; SAPOTACEAE;

VITELLARIA PARADOXA;

EID: 80053228924     PISSN: 09621083     EISSN: 1365294X     Source Type: Journal    
DOI: 10.1111/j.1365-294X.2011.05249.x     Document Type: Article

References (110)

1. Addinsoft (2011) XLSTAT software version 7.5.2. (accessed 13 February 2011).
2. Agbahungba G, Depommier D, (1989) Aspects du parc a karites-neres (Vitellaria paradoxa Gaertn. f. Parkia biglobosa Jacq. Benth) dans le sud du Borgou (Benin). Bois et Forets des Tropiques, 222, 41-54.
3. Allal F, Vaillant A, Sanou H, Kelly B, Bouvet J-M, (2008) Isolation and characterization of new microsatellites in shea tree (Vitellaria paradoxa C. F.Gaertn). Molecular Ecology Notes, 5, 524-526.
4. Allal F, Sanou H, Millet L, et al. (2011) Past climate changes explain the phylogeography of Vitellaria paradoxa over Africa. Heredity, 107, 174-186.
5. Andrianoelina O, Favreau B, Ramamonjisoa L, Bouvet J-M, (2009) Small effect of fragmentation on the genetic diversity of Dalbergia monticola, an endangered tree species of the eastern forest of Madagascar, detected by chloroplast and nuclear microsatellites. Annals of Botany, 104, 1231-1242.
6. Ayele T B, Gailing O, Umer M, Finkeldey R, (2009) Chloroplast DNA haplotype diversity and postglacial recolonization of Hagenia abyssinica (Bruce) J.F. Gmel. in Ethiopia. Plant Systematic and Evolution, 280, 175-185.
7. Ballouche A, Neumann K, (1995) A new contribution to the Holocene vegetation history of the West African Sahel: pollen from Oursi, Burkina Faso and charcoal from three sites in northeast Nigeria. Vegetation History and Archaeobotany, 4, 31-39.
8. Beaumont MA, Zhang WY, Balding DJ, (2002) Approximate Bayesian computation in population genetics. Genetics, 162, 2025-2035. (Pubitemid 36114682)
9. Bekessy SA, Allnutt TR, Premoli AC, et al. (2002) Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs. Heredity, 88, 243-249. (Pubitemid 34315672)
10. Belkhir K, Borsa P, Chikhi L, Raufaste N, Bonhomme F, (19962004) GENETIX 4.05, logiciel sous Windows TM pour la génétique des populations. Laboratoire Génome, Populations, Interactions, CNRS UMR 5000, Université de Montpellier II, Montpellier (France).
11. Bouvet J-M, Kelly B, Sanou H, Allal F, (2008) Comparison of marker- and pedigree-based methods for estimating heritability in an agroforestry population of Vitellaria paradoxa C.F. Gaertn (shea tree). Genetic Resources and Crop Evolution, 55, 1291-1301.
12. Bryan GJ, McNicoll J, Ramsay G, Meyer RC, De Jong WS, (1999) Polymorphic simple sequence repeat markers in chloroplast genomes of solanaceous plants. Theoretical and Applied Genetics, 99, 859-867. (Pubitemid 29464034)
13. Burban C, Petit RJ, (2003) Phylogeography of maritime pine inferred with organelle markers having contrasted inheritance. Molecular Ecology, 12, 1487-1495. (Pubitemid 36708455)
14. Cannon CH, Manos PS, (2003) Phylogeography of the Southeast Asian stone oaks (Lithocarpus). Journal of Biogeography, 30, 211-226. (Pubitemid 36317380)
15. Cavalli-Sforza LL, Edwards AWF, (1967) Phylogenetic analysis: models and estimation procedures. Evolution, 32, 550-570.
16. Cochard B, Adon B, Rekima S, et al. (2009) Geographic and genetic structure of African oil palm diversity suggests new approaches of breeding. Tree genetics and Genomics, 5, 493-504.
17. Collevatti RG, Grattapaglia D, Hay JD, (2003) Evidence for multiple lineages of Caryocar brasiliense populations in the Brazilian Cerrado based on the analysis of chloroplast DNA sequence and microsatellite haplotype variation. Molecular Ecology, 12, 105-115. (Pubitemid 36108110)
18. Cornuet JM, Santos F, Beaumont MA, et al. (2008) Inferring population history with DIYABC: a user friendly approach to approximate Bayesian computation. Bioinformatics, 24, 2713-2719. (Pubitemid 352722613)
19. Cornuet JM, Ravigné V, Estoup A, (2010) Inference on population history and model checking using DNA sequence and microsatellite data with the software DIYABC (v1.0). Bioinformatics, 11, 401.
20. DaÃnou K, Bizoux J-P, Doucet J-L, Mahy G, Hardy OJ, Heuertz M, (2010) Forest refugia revisited: nSSRs and cpDNA sequences support historical isolation in a wide-spread African tree with high colonization capacity, Milicia excelsa (Moraceae). Molecular Ecology, 19, 4462-4477.
21. Debout GD, Doucet J-L, Hardy OJ, (2010) Population history and dispersal ecology inferred from spatial genetic structure of a Central African timber tree, Distemonanthus benthamianus (Caesalpinioideae). Heredity, 106, 88-99.
22. Dick CW, Heuertz M, (2008) The complex biogeographic history of a widespread tropical tree species. Evolution, 62, 2760-2774.
23. Dick CW, Jones FA, Hardy OJ, Petit R, (2008) Spatial scales of seed and pollen-mediated gene flow in tropical forest trees. Tropical Plant Biology, 1, 20-33.
24. Duminil J, Heuertz M, Doucet J-L, et al. (2010) CpDNA-based species identification and phylogeography: application to a complex of African tropical tree species. Molecular Ecology, 19, 5469-5483.
25. Dutech C, Maggia L, Joly HI, (2000) Chloroplast diversity in Vouacapoua americana (Caesalpiniaceae), a neotropical forest tree. Molecular Ecology, 9, 1427-1432.
26. El Mousadik A, Petit RJ, (1996) High level of genetic differentiation for allelic richness among populations of the argan tree (Argania spinosa (L.) Skeels) endemic to Morocco. Theoretical and Applied Genetics, 92, 832-883.
27. Estoup A, Jarne P, Cornuet J-M, (2002) Homoplasy and mutation model at microsatellite loci and their consequences for population genetics analysis. Molecular Ecology, 11, 1591-1604. (Pubitemid 35022229)
28. Evanno G, Regnaut S, Goudet J, (2007) Detecting the number of clusters of individuals using the software structure: a simulation study. Molecular Ecology, 14, 2611-2620.
29. Excoffier L, (2004) Patterns of DNA sequence diversity and genetic structure after a range expansion: lessons from the infinite-island model. Molecular Ecology, 13, 853-864. (Pubitemid 38390591)
30. Excoffier L, Estoup A, Cornuet JM, (2005a) Bayesian analysis of an admixture model with mutations and arbitrarily linked markers. Genetics, 169, 1727-1738. (Pubitemid 40547478)
31. Excoffier L, Laval G, Schneider S, (2005b) Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evolutionary Bioinformatics Online, 1, 47-50.
32. Excoffier L, Foll M, Petit RJ, (2009) Genetic consequences of range expansions. Annual Review of Ecology, Evolution, and Systematics, 40, 481-501.
33. Fairhead J, Leach M, (1995) False forest history, complicit social analysis: rethinking some West African environmental narratives. World Development, 23, 1023-1035. (Pubitemid 26430963)
34. Felsentstein J, (1993) PHYLIP: Phylogenetic inference package, Version 3.573c. University of Washington, Seattle, WA.
35. Fontaine C, Lovett PN, Sanou H, Maley J, Bouvet J-M, (2004) Genetic diversity of the shea tree (Vitellaria paradoxa C.F. Gaertn), detected by RAPD and chloroplast microsatellite markers. Heredity, 93, 639-648. (Pubitemid 39606229)
36. Garza JC, Williamson EG, (2001) Detection of reduction in population size using data from microsatellite loci. Molecular Ecology, 10, 305-318. (Pubitemid 32232339)
37. Goudet J, (2001) FSTAT, a program to estimate and test gene diversities and fixation indices (version 2.9.3).
38. Grivet D, Petit R, (2003) Chloroplast DNA phylogeography of the hornbeam in Europe: evidence for the bottleneck at the outset of the postglacial colonisation. Conservation Genetic, 4, 47-56. (Pubitemid 36590234)
39. Gross BL, Olsen KM, (2010) Genetic perspectives on crop domestication. Trends in Plant Science, in press. doi:.
40. Gupta AK, (2004) Origin of agriculture and domestication of plants and animals linked to early Holocene climate amelioration. Current Science, 87, 54-59. (Pubitemid 39403909)
41. Hall JB, Aebischer DP, Tomlinson HF, Osei-Amaning E, Hindle JR, (1996) Vitellaria paradoxa. A Monograph School of Agricultural Sciences Publication Number 8. University of Wales, Bangor, 105 pp.
42. Hamrick JL, Loveless MD, (1989) The genetic structure of tropical trees populations: associations with reproductive biology. In: Evolutionary Ecology of Plants (eds, Bockand JH, Lindhart YB,), pp. 129-146. Westview Press, Boulder, CO.
43. Hansen OK, KjÃ∥r ED, Vendramin GG, (2005) Chloroplast microsatellite variation in Abies nordmanniana and simulation of causes for low differentiation among populations. Tree Genetics & Genomes, 1, 116-123. (Pubitemid 44197986)
44. Hardy OJ, Vekemans X, (2002) SPAGeDi: a versatile computer program to analyse spatial genetic structure at the individual or population levels. Molecular Ecology Notes, 2, 618-620. (Pubitemid 35436766)
45. Hardy OJ, Charbonnel N, Fréville H, Heuertz M, (2003) Microsatellite allele sizes: a simple test to assess their significance on genetic differentiation. Genetics, 163, 1467-1482. (Pubitemid 36523397)
46. Heuertz M, Fineschi S, Anzidei M, et al. (2004) Chloroplast DNA variation and postglacial recolonization of common ash (Fraxinus excelsior L.) in Europe. Molecular Ecology, 13, 3437-3452. (Pubitemid 39415677)
47. Hewitt GM, (1996) Some genetic consequences of ice ages, and their role in divergence and speciation. Biological Journal of the Linnean Society, 58, 247-276. (Pubitemid 26389802)
48. Hollander M, Wolfe DA, (1999) Nonparametric Statistical Methods, 2nd edn. John Wiley and Sons, New York.
49. Hubisz MJ, Falush D, Stephens M, Pritchard JK, (2009) Inferring weak population structure with the assistance of sample group information. Molecular Ecology Resources, 9, 1322-1332.
50. Ishii T, McCouch SR, (2000) Microsatellites and microsynteny in the chloroplast genomes of Oryza and eight other Gramineae species. Theoretical and Applied Genetics, 100, 1257-1266. (Pubitemid 30427786)
51. Jaramillo-Correa J, Aguirre-Planter E, Khasa DP, et al. (2008) Ancestry and divergence of subtropical montane forest isolates: molecular biogeography of genus Abies (Pinacea) in southern Mexico and Guatemala. Molecular Ecology, 17, 2476-2490. (Pubitemid 351623782)
52. Jenik J, (1994) The Dahomey Gap, an important issue in West African phytogeography. Mémoire Société Biogéographie, 4, 125-133.
53. Kadu CAC, Schueler S, Konrad H, et al. (2011) Phylogeography of the Afromontane Prunus Africana reveals a former migration corridor between East and West African highlands. Molecular Ecology, 20, 165-178.
54. Kelly BA, (2005) Impact des pratiques humaines sur la dynamique des populations et sur la diversité génétique de Vitellaria paradoxa (karité) dans les systämes agroforestiers au sud du Mali. PhD thesis. University of Bamako, Mali, 243 pp.
55. Kelly BA, Hardy O, Bouvet J-M, (2004) Temporal and spatial genetic structure of Vitellaria paradoxa (shea tree) in agroforestry systems in southern Mali. Molecular Ecology, 13, 1231-1240. (Pubitemid 38504425)
56. Kelly BA, Gourlet-Fleury S, Bouvet J-M, (2007) Impact of agroforestry practices on the flowering phenology of Vitellaria paradoxa in parklands in southern Mali. Agroforestry Systems, 71, 67-75. (Pubitemid 47279581)
57. King RA, Ferris C, (1998) Chloroplast DNA phylogeography of Alnus glutinosa (L) Gaertn. Molecular Ecology, 7, 1151-1161. (Pubitemid 28428490)
58. Ky CL, Barre P, Lorieux M, et al. (2000) Interspecific genetic linkage map, segregation distortion and genetic conversion in coffee (Coffea sp.). Theoretical and Applied Genetics, 101, 669-676.
59. Leakey RRB, Tchoundjeu Z, Smith RI, et al. (2004) Evidence that subsistence farmers have domesticated indigenous fruits (Dacryodes edulis and Irvingia gabonensis) in Cameroon and Nigeria. Agroforestry Systems, 60, 101-111. (Pubitemid 38215495)
60. Lemes MR, Gribel R, Proctor J, Grattapaglia D, (2003) Population genetic structure of mahogany (Swietenia macrophylla King, Meliaceae) across the Brazilian Amazon, based on variation at microsatellite loci: implications for conservation. Molecular Ecology, 12, 2875-2883. (Pubitemid 37425059)
61. Liao P-C, Havanond S, Huang S, (2007) Phylogeography of Ceriops tagal (Rhizophoraceae) in Southeast Asia: the land barrier of the Malay Peninsula has caused population differentiation between the Indian Ocean and South China Sea. Conservation Genetics, 8, 89-98. (Pubitemid 46035953)
62. Lovett PN, Haq N, (2000a) Evidence for anthropic selection of the sheanut tree (Vitellaria paradoxa). Agroforestry Systems, 48, 273-278.
63. Lovett PN, Haq N, (2000b) Diversity of the sheanut tree (Vitellaria paradoxa C. F. Gaertn.) in Ghana. Genetic Resources and Crop Evolution, 47, 293-304. (Pubitemid 30446294)
64. Maley J, (1989) Late quaternary climatic changes in the African Rain Forest: Forest Refugia and the major role of sea surface temperature variations. In: Paleoclimatology and Paleometeorology: Modern and Past Patterns of Global Atmospheric Transport (eds, Leinen M, Sarnthein M,). NATO Advanced Sc. Inst. Series, C, Math. & Phys. Sci., 282, pp. 585-616. Kluwer Acad. Publ., Dordrecht.
65. Maley J, (1996) The African rain forest: main characteristics of changes in vegetation and climate from the upper Cretaceous to the Quaternary. Proceeding of the Royal Society of Edinburgh, 104, 31-73. (Pubitemid 126814808)
66. Mantel N, (1967) The detection of disease clustering and a generalized regression approach. Cancer Research, 27, 209-220.
67. Maranz S, (2009) Tree mortality in the African Sahel indicates an anthropogenic ecosystem displaced by climate change. Journal of Biogeography, 36, 1181-1193.
68. Maranz S, Wiesman Z, (2003) Evidence for indigenous selection and distribution of the shea tree, Vitellaria paradoxa, and its potential significance to prevailing parkland savannah tree patterns in sub-Saharan Africa north of the equator. Journal of Biogeography, 30, 1505-1516. (Pubitemid 37245159)
69. Maranz S, Kpikpi W, Wiesman Z, De Saint Sauveur A, Chapagain B, (2004) Nutritional values and indigenous preferences for shea fruits (Vitellaria Paradoxa C.F. Gaertn. F.) in African agroforestry parklands. Economic Botany, 58, 588-600. (Pubitemid 40284972)
70. Margush T, McMorris FR, (1981) Consensus n-trees. Bulletin of Mathematical Biology, 43, 239-244.
71. Marshall HD, Newton C, Ritland K, (2002) Chloroplast phylogeography and evolution of highly polymorphic microsatellite in Lodgepole pine (Pinus contorta). Theoretical and Applied Genetics, 104, 367-378. (Pubitemid 36065065)
72. Master ET, Yidana JA, Lovett PN, (2004) Reinforcing sound management through trade:shea tree products in Africa. Unsylva 219, 55, 46-52. (Pubitemid 40548926)
73. Müller F, Voccia M, BÃ A, Bouvet J-M, (2009) Genetic diversity and gene flow in a Caribbean tree Pterocarpus officinalis Jacq: a study based on chloroplast and nuclear microsatellites. Genetica, 135, 185-198.
74. Muloko-Ntoutoume N, Petit RJ, White L, Abernethys K, (2000) Chloroplast DNA variation in a rainforest tree (Aucoumea klaineana, Burseraceae) in Gabon. Molecular Ecology, 9, 359-363. (Pubitemid 30152756)
75. Nada BH, (2003) Population genetic analysis or European and African willows (Salix spp.) using nuclear microsatellite and chloroplast markers. Molecular Ecology, 12, 1487-1495.
76. Navascués M, Emerson BC, (2005) Chloroplast microsatellites: measures of genetic diversity and the effect of homoplasy. Molecular Ecology, 14, 1333-1341. (Pubitemid 40554791)
77. Navascués M, Vaxevanidou Z, González-Martínez SC, Climent J, Gil L, (2006) Chloroplast microsatellites reveal colonisation and metapopulation dynamics in the Canary Island pine. Molecular Ecology, 15, 2691-2698. (Pubitemid 44215447)
78. Nei M, (1987) Molecular Evolutionary Genetics. Columbia University Press, New York, NY.
79. Neumann K, Kahlheber S, Uebel D, (1998) Remains of woody plants from Saouga, a medieval West African village. Vegetation History and Archaeobotany, 7, 57-77. (Pubitemid 128695573)
80. Nevill PG, Bossinger G, Ades PK, (2010) Phylogeography of the world's tallest angiosperm, Eucalyptus regnans: evidence for multiple isolated Quaternary refugia. Journal of Biogeography, 37, 179-192.
81. Newton AC, Allnutt TR, Gillies AM, Lowe AJ, Ennos RA, (1999) Molecular phylogeography, intraspecific variation and the conservation of tree species. Trends in Ecology & Evolution, 14, 140-145. (Pubitemid 29135463)
82. Okullo JBL, Hall JB, Obual J, (2004) Leafing, flowering and fruiting of Vitellaria paradoxa subsp. nilotica in savanna parklands in Uganda. Agroforestry Systems, 60, 77-91. (Pubitemid 38143350)
83. Page RDM, (1996) Treeview: an application to display phylogenetic trees on personal computers. Computer Applications in the Biosciences, 12, 357-358.
84. Palme AE, Vendramin GG, (2002) Chloroplast DNA variation, postglacial recolonization and hybridization in hazel, Corylus avellana. Molecular Ecology, 11, 1769-1779.
85. Petit RJ, El Mousadik A, Pons O, (1998) Identifying populations for conservation on the basis of genetic markers. Conservation Biology, 12, 844-855. (Pubitemid 28395189)
86. Petit RJ, Brewer S, Bordács S, et al. (2002a) Identification of refugia and post-glacial colonisation routes of European white oaks based on chloroplast DNA and fossil pollen evidence. Forest Ecology and Management, 156, 49-74. (Pubitemid 34196760)
87. Petit RJ, Csaikl U, Bordács S, et al. (2002b) Chloroplast DNA variation in European white oaks: phylogeography and patterns of diversity based on data from over 2,600 populations. Forest Ecology and Management, 156, 5-26. (Pubitemid 34196758)
88. Petit RJ, Aguinagalde I, de Beaulieu J-L, et al. (2003) Glacial refugia: hotspots but not melting pots of genetic diversity. Science, 300, 1563-1565. (Pubitemid 36682886)
89. Petit RJ, Hampe A, Cheddadi R, (2005a) Climate changes and tree phylogeography in the Mediterranean. Taxon, 54, 877-885. (Pubitemid 43219437)
90. Petit RJ, Duminil J, Fineschi S, Hampe A, Salvini D, Vendramin GG, (2005b) Comparative organization of chloroplast, mitochondrial and nuclear diversity in plant populations. Molecular Ecology, 14, 689-701. (Pubitemid 40346461)
91. Pock Tsy J-ML, Lumaret R., Mayne D, et al. (2009) Chloroplast DNA phylogeography suggests a West African centre of origin for the baobab, Adansonia digitata L. (Bombacoideae, Malvaceae). Molecular Ecology, 18, 1707-1715.
92. Pons O, Petit RJ, (1996) Measuring and testing genetic differentiation with ordered versus unordered alleles. Genetics, 144, 1237-1245. (Pubitemid 26378263)
93. Pritchard JK, Stephens M, Donnelly P, (2000) Inference of population structure using multilocus genotype data. Genetics, 155, 945-959. (Pubitemid 30397141)
94. Provan J, Soranzo N, Wilson NJ, Goldstein DB, Powell W, (1999) A low mutation rate for chloroplast microsatellites. Genetics, 153, 943-947. (Pubitemid 29482347)
95. Pullan R.A., (1974) Farmed parkland in West Africa. Savanna, 3, 119-151.
96. Ray N, Currat M, Excoffier L, (2003) Intra-deme molecular diversity in spatially expanding populations. Molecular Biology and Evolution, 20, 76-86. (Pubitemid 36077902)
97. Reich DE, Feldman MW, Goldstein DB, (1999) Statistical properties of two tests that use multilocus data sets to detect population expansions. Molecular Biology and Evolution, 16, 453-466. (Pubitemid 29190952)
98. Rogers AR, Harpending H, (1992) Population growth makes waves in the distribution of pairwise genetic differences. Molecular Biology and Evolution, 9, 552-569.
99. Saitou N, Nei M, (1987) The neighbor-joining method: a new method for reconstructing phylogenetic trees. Molecular Biology and Evolution, 4, 406-425.
100. Salzmann U, Hoelzmann P, (2005) The Dahomey Gap: an abrupt climatically induced rain forest fragmentation in West Africa during the late Holocene. The Holocene, 15, 190-199. (Pubitemid 40428312)
101. Sanou H, Lovett N, Bouvet J-M, (2005) Comparison of quantitative and molecular variation in agroforestry populations of the shea tree (Vitellaria paradoxa C.F. Gaertn) in Mali. Molecular Ecology, 14, 2601-2610. (Pubitemid 40886054)
102. Sautter G., (1962) A propos de quelques terroirs d'Afrique Occidentale: Essai comparatif. Etudes Rurales, 4, 24-86.
103. Schneider S, Excoffier L, (1999) Estimation of demographic parameters from the distribution of pairwise differences when the mutation rates vary among sites: application to human mitochondrial DNA. Genetics, 152, 1079-1089. (Pubitemid 29330907)
104. Slatkin M, (1995) A measure of population subdivision based on microsatellite allele frequencies. Genetics, 139, 457-462.
105. Taberlet P, Fumagalli L, Wust-Saucy AG, Cosson JF, (1998) Comparative phylogeography and postglacial colonization routes in Europe. Molecular Ecology, 7, 453-464. (Pubitemid 28226692)
106. Tollefsrud MM, SÃnstebà JH, Brochmann C, Johnsen Ã, SkrÃppa T, Vendramin GG, (2009) Combined analysis of nuclear and mitochondrial markers provide new insight into the genetic structure of North European Picea abies. Heredity, 102, 549-562.
107. Weir BS, Cockerham CC., (1984) Estimating F-statistics for the analysis of population structure. Evolution, 38, 1358-1370. (Pubitemid 16277759)
108. Weising K, Gardner RC, (1999) A set of conserved PVR primers for the analysis of simple sequence repeat polymorphism in chloroplast genomes of dicotyledonous angiosperms. Genome, 42, 9-19. (Pubitemid 29167282)
109. Willis KJ, Whittaker RJ, (2000) The refugial debate. Science, 287, 1406-1407. (Pubitemid 30127115)
110. Zeder MA, (2006) Central questions in the domestication of plants and animals. Evolutionnary Anthropology, 15, 105-117. (Pubitemid 44085996)