Molecular phylogeny and biogeography of the arctic-alpine genus Lagotis (Plantaginaceae)

Taxon

Volumn 63, Issue 1, 2014, Pages 103-115

  Li, Guo Dong ^a,b   Kim, Changkyun ^a   Zha, Hong Guang ^a   Zhou, Zhuo ^a   Nie, Ze Long ^a   Sun, Hang ^a  

^a KUNMING INSTITUTE OF BOTANY   (China)

^b YUNNAN UNIVERSITY OF TRADITIONAL CHINESE MEDICINE   (China)

Author keywords

Arctic alpine; Biogeography; Central Asiatic Highland Corridor; Lagotis; Phylogeny

Indexed keywords

EID: 84894292244     PISSN: 00400262     EISSN: 19968175     Source Type: Journal    
DOI: 10.12705/631.47     Document Type: Article

References (112)

1. Abbott, R.J. 2008. History, evolution and future of arctic and alpine flora: Overview. Pl. Ecol. Divers. 1: 129-133. http://dx.doi.org/10.1080/17550870802460976
2. Abbott, R.J. & Brochmann, C. 2003. History and evolution of the arctic flora: In the footsteps of Eric Hultén. Molec. Ecol. 12: 299-313. http://dx.doi.org/10.1046/j.1365-294X.2003.01731.x
3. Abbott, R.J., Smith, L.C., Milne, R.I., Crawford, R.M.M., Wolff, K. & Balfour, J. 2000. Molecular analysis of plant migration and refugia in the Arctic. Science 289: 1343-1346. http://dx.doi.org/10.1126/science.289.5483.1343
4. Akaike, H. 1974. A new look at the statistical model identification. IEEE Trans. Automatic Control 19(6): 716-723. http://dx.doi.org/10.1109/TAC.1974.1100705
5. Albach, D.C. & Chase, M.W. 2001. Paraphyly of Veronica (Veroniceae; Scrophulariaceae): Evidence from the internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA. J. Pl. Res. 114: 9-18. http://dx.doi.org/10.1007/PL00013971
6. Albach, D.C. & Chase, M.W. 2004. Incongruence in Veroniceae (Plantaginaceae): Evidence from two plastid and a nuclear ribosomal DNA region. Molec. Phylogen. Evol. 32: 183-197. http://dx.doi.org/10.1016/j.ympev.2003.12.001
7. Albach, D.C., Martínez-Ortega, M.M., Fischer, M.A. & Chase, M.W. 2004a. Evolution of Veroniceae: A phylogenetic perspective. Ann. Missouri Bot. Gard. 91: 275-302.
8. Albach, D.C., Martínez-Ortega, M.M., Fischer, M.A. & Chase, M.W. 2004b. A new classification of the tribe Veroniceae: Problems and a possible solution. Taxon 53: 429-452. http://dx.doi.org/10.2307/4135620
9. Albach, D.C., Martínez-Ortega, M.M., Delgado, L., Weiss-Schneeweiss, H., Özgökce, F. & Fischer, M.A. 2008. Chromosome numbers in Veroniceae (Plantaginaceae): Review and several new counts 1. Ann. Missouri Bot. Gard. 95: 543-566. http://dx.doi.org/10.3417/2006094
10. Axelrod, D.I., Al-Shehbaz, I. & Raven, P.H. 1996. History of the modern flora of China. Pp. 43-55 in: Zhang, A.-L. & Wu, S.-G. (eds.), Floristic characteristics and diversity of eastern Asian plants. Springer: Hongkong.
11. Baldwin, B.G. & Sanderson, M.J. 1998. Age and rate of diversification of the Hawaiian silversword alliance (Compositae). Proc. Natl. Acad. Sci. U.S.A. 95: 9402-9406. http://dx.doi.org/10.1073/pnas.95.16.9402
12. Bromham, L. & Penny, D. 2003. The modern molecular clock. Nat. Rev. Genet. 4: 216-224. http://dx.doi.org/10.1038/nrg1020
13. Call, V.B. & Dilcher, D.L. 1992. Investigations of angiosperms from the Eocene of southeastern North America: Samaras of Fraxinus wilcoxiana Berry. Rev. Palaeobot. Palynol. 74: 249-266. http://dx.doi.org/10.1016/0034-6667(92)90010-E
14. Chaney, R.W. & Axelrod, D.I. 1959. Miocene floras of the Columbia Plateau. Publ. Carnegie Inst. Washington 617: 1-231.
15. Chen, S.T., Guan, K.Y., Zhou, Z.K., Olmstead, R. & Cronk, Q. 2005. Molecular phylogeny of Incarvillea (Bignoniaceae) based on ITS and trnL-F sequences. Amer. J. Bot. 92: 625-633. http://dx.doi.org/10.3732/ajb.92.4.625
16. Chung, S.L., Lo, C., Lee, T.Y., Zhang, Y.Q., Xie, Y.W., Li, X.H., Wang, K.L. & Wang, P.L. 1998. Diachronomous uplift of the Tibetan plateau starting 40 Myr ago. Nature 394: 769-773. http://dx.doi.org/10.1038/29511
17. Donoghue, M.J. & Smith, S.A. 2004. Patterns in the assembly of temperate forests around the Northern Hemisphere. Philos. Trans., Ser. B 359: 1633-1644. http://dx.doi.org/10.1098/rstb.2004.1538
18. Donoghue, M.J., Bell, C. & Li, J. 2001. Phylogenetic patterns in Northern Hemisphere plant geography. Int. J. Pl. Sci. 162: S41-S52. http://dx.doi.org/10.1086/323278
19. Drummond, A.J. & Rambaut, A. 2007. BEAST: Bayesian evolutionary analysis by sampling trees. B. M. C. Evol. Biol. 7: 214. http://dx.doi.org/10.1186/1471-2148-7-214
20. Drummond, A.J., Ho, S.Y.W., Phillips, M.J. & Rambaut, A. 2006. Relaxed phylogenetics and dating with confidence. PLoS Biol. 4: e88. http://dx.doi.org/10.1371/journal.pbio.0040088
21. Drummond, A.J., Ho, S.Y.W., Rawlence, N. & Rambaut, A. 2007. A rough guide to BEAST 1.4. http://code.google.com/p/beast-mcmc/
22. Felsenstein, J. 1985. Confidence intervals on phylogenies: An approach using the bootstrap. Evolution 39: 783-791. http://dx.doi.org/10.2307/2408678
23. Gärtner, I. 1770. Observationes et descriptiones botanicae. Novi Comment. Acad. Sci. Imp. Petrop. 14: 531-537.
24. Guo, X.G., He, S.P. & Zhang, Y.G. 2005. Phylogeny and biogeography of Chinese sisorid catfishes re-examined using mitochondrial cytochrome b and 16S rRNA gene sequences. Molec. Phylogen. Evol. 35: 344-362. http://dx.doi.org/10.1016/j.ympev.2004.12.015
25. Hall, T.A. 1999. BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucl. Acids Symp. Ser. 41: 95-98.
26. Hamilton, M.B. 1999. Four primer pairs for the amplification of chloroplast intergenic regions with intraspecific variation. Molec. Ecol. 8: 521-523.
27. Harris, A.J. & Xiang, Q.Y. 2009. Estimating ancestral distributions of lineages with uncertain sister groups: A statistical approach to dispersal-vicariance analysis and a case using Aesculus L. (Sapindaceae) including fossils. J. Syst. Evol. 47: 349-368. http://dx.doi.org/10.1111/j.1759-6831.2009.00044.x
28. Harris, A.J., Wen, J. & Xiang, Q.Y. 2013. Inferring the biogeographic origins of inter-continental disjunct endemics using a Bayes-DIVA approach. J. Syst. Evol. 51: 117-133. http://dx.doi.org/10.1111/jse.12007
29. Harrison, T.M., Coplend, P., Kidd, W.S.F. & Yin, A. 1992. Raising Tibet. Science 255: 1663-1670. http://dx.doi.org/10.1126/science.255.5052.1663
30. Hedberg, K.O. 1992. Taxonomic differentiation in Saxifraga hirculus L. (Saxifragaceae)-A circumpolar Arctic-Boreal species of Central Asiatic origin. Bot. J. Linn. Soc. 109: 377-393. http://dx.doi.org/10.1111/j.1095-8339.1992.tb00280.x
31. Ho, S.Y.W. & Phillips, M.J. 2009. Accounting for calibration uncertainty in phylogenetic estimation of evolutionary divergence times. Syst. Bot. 58: 367-380.
32. Hoffmann, M.H., Hagen, K.B. von, Hörandl, E., Röser, M. & Tkach, N.V. 2010. Sources of the Arctic flora: Origins of Arctic species in Ranunculus and related genera. Int. J. Pl. Sci. 171: 90-106. http://dx.doi.org/10.1086/647918
33. Hultén, E. 1937. Outline of the history of Arctic and boreal biota during the Quarternary period. New York, Lehre: J Cramer.
34. Jia, D.R., Abbott, R.J., Liu, T.L., Mao, K.S., Bartish, I.V. & Liu, J.Q. 2012. Out of the Qinghai-Tibet Plateau: Evidence for the origin and dispersal of Eurasian temperate plants from a phylogeographic study of Hippophaë rhamnoides (Elaeagnaceae). New Phytol. 194: 1123-1133. http://dx.doi.org/10.1111/j.1469-8137.2012.04115.x
35. Johnston, L.A. & Soltis, D.E. 1994. MatK DNA sequences and phylogenetic reconstruction in Saxifragaceae s. str. Syst. Bot. 19: 143-156. http://dx.doi.org/10.2307/2419718
36. Li, H.L. 1954. A revision of the genus Lagotis in China. Brittonia 8: 23-28. http://dx.doi.org/10.2307/2804907
37. Li, J.J., Shi, Y.F. & Li, B.Y. 1995. Uplift of the Qinghai-Xizang (Tibet) Plateau and global change. Lanzhou: Lanzhou University Press.
38. Li, W.H. 1997. Molecular evolution. Sunderland, Massachusetts: Sinauer.
39. Liu, J.Q. & Tian, B. 2007. Origin, evolution, and systematics of Himalaya endemic genera. Newslett. Himalayan Bot. 40: 20-27.
40. Liu, J.Q., Gao, T.G., Chen, Z.D. & Lu, A.M. 2002. Molecular phylogeny and biogeography of the Qinghai-Tibet plateau endemic Nannoglottis (Asteraceae). Molec. Phylogen. Evol. 23: 307-325. http://dx.doi.org/10.1016/S1055-7903(02)00039-8
41. Liu, J.Q., Wang, Y.J., Wang, A.L., Hideaki, O. & Abbott, R.J. 2006. Radiation and diversification within the Ligularia-Cremanthodium-Parasenecio complex (Asteraceae) triggered by uplift of the Qinghai-Tibetan Plateau. Molec. Phylogen. Evol. 38: 31-49. http://dx.doi.org/10.1016/j.ympev.2005.09.010
42. Lu, X.F. 1992. A study of Lagotis Gaertn. (Scrophulariaceae) in the Qinghai-Tibet Plateau. Acta Biol. Plateau Sin. 11: 187-198.
43. Luo, Y., Zhang, F.M. & Yang, Q.E. 2005. Phylogeny of Aconitum subgenus Aconitum (Ranunculaceae) inferred from ITS sequences. Pl. Syst. Evol. 252: 11-25. http://dx.doi.org/10.1007/s00606-004-0257-5
44. Magallón-Puebla, S., Crane, P.R. & Herendeen, P.S. 1999. Phylogenetic pattern, diversity, and diversification of eudicots. Ann. Missouri Bot. Gard. 86: 297-372. http://dx.doi.org/10.2307/2666180
45. Manchester, S.R. 1999. Biogeographical relationships of North American Tertiary floras. Ann. Missouri Bot. Gard. 86: 472-522. http://dx.doi.org/10.2307/2666183
46. Mao, K.S., Hao, G., Liu, J.Q., Adams, R.P. & Milne, R.I. 2010. Diversification and biogeography of Juniperus (Cupressaceae): Variable diversification rates and multiple intercontinental dispersals. New Phytol. 188: 254-272. http://dx.doi.org/10.1111/j.1469-8137.2010.03351.x
47. Maximowicz, C.J. 1881. Diagnoses plantarum novarum asiaticarum. IV. Bull. Acad. Imp. Sci. Saint-Petersbourg 27: 425-560.
48. Meyer, H.W. & Manchester, S.R. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. Univ. Calif. Publ. Geol, Sci. 141: 1-195.
49. Milne, R.I. 2006. Northern Hemisphere plant disjunctions: A window on tertiary land bridges and climate change? Ann. Bot. (Oxford) 98: 465-472. http://dx.doi.org/10.1093/aob/mcl148
50. Milne, R.I. & Abbott, R.J. 2002. The origin and evolution of Tertiary relict floras. Advances Bot. Res. 38: 281-314. http://dx.doi.org/10.1016/S0065-2296(02)38033-9
51. Muller, J. 1981. Fossil pollen records of extant angiosperms. Bot. Rev. (Lancaster) 47: 1-142. http://dx.doi.org/10.1007%2FBF02860537
52. Murray, D.F. 1995. Causes of arctic plant diversity: Origin and evolution. Pp. 21-32 in: Chapin, F.S. & Korner, C. (eds.), Arctic and alpine biodiversity: Patterns, causes and ecosystem consequences. Heidelberg: Springer. http://dx.doi.org/10.1007/978-3-642-78966-3_2
53. Nie, Z.L., Sun, H., Beardsley, P.M., Olmstead, R.G. & Wen, J. 2006. Evolution of biogeographic disjunction between eastern Asia and eastern North America in Phryma (Phrymaceae). Amer. J. Bot. 93: 1343-1356. http://dx.doi.org/10.3732/ajb.93.9.1343
54. Nylander, J.A.A. 2004. MrModeltest, version 2. Program distributed by the author. Uppsala: Evolutionary Biology Centre, Uppsala University.
55. Oh, S.H. & Potter, D. 2005. Molecular phylogenetic systematics and biogeography of tribe Neillieae (Rosaceae) using DNA sequences of cpDNA, rDNA, and LEAFY. Amer. J. Bot. 92: 179-192. http://dx.doi.org/10.3732/ajb.92.1.179
56. Ohba H. 1988. The alpine flora of the Nepal Himalayas: An introductory note. Pp. 19-46 in: Ohba, H. & Malla, S.B. (eds.), The Himalayas plants. Tokyo: University of Tokyo Press.
57. Oxelman, B., Liden, M. & Berglund, D. 1997. Chloroplast rps16 intron phylogeny of the tribe Sileneae (Caryophyllaceae). Pl. Syst. Evol. 206: 393-410. http://dx.doi.org/10.1007/BF00987959
58. Ozenda, P. 1988. Die Vegetation der Alpen im europäischen Gebirgsraum. Stuttgart: Fischer.
59. Pigg, K.B. & Wehr, W.C. 2002. Tertiary flowers, fruits and seeds of Washington State and adjacent areas, part III. Washington Geol. 30: 3-20.
60. Pirie, M.D. & Doyle, J.A. 2012. Dating clades with fossils and molecules: The case of Annonaceae. Bot. J. Linn. Soc. 169: 84-116. http://dx.doi.org/10.1111/j.1095-8339.2012.01234.x
61. Qiao, C.Y., Ran, J.H., Li, Y. & Wang, X.Q. 2007. Phylogeny and biogeography of Cedrus (Pinaceae) inferred from sequences of seven paternal chloroplast and maternal mitochondrial DNA regions. Ann. Bot. (Oxford) 100: 573-580. http://dx.doi.org/10.1093/aob/mcm134
62. Qiu, Y.X., Fu, C.X. & Comes, H.P. 2011. Plant molecular phylogeography in China and adjacent regions: Tracing the genetic imprints of Quaternary climate and environmental change in the world's most diverse temperate flora. Molec. Phylogen. Evol. 59: 225-244. http://dx.doi.org/10.1016/j.ympev.2011.01.012
63. Rannala, B. & Yang, Z. 1996. Probability distribution of molecular evolutionary trees: A new method of phylogenetic inference. J. Molec. Evol. 43: 304-311. http://dx.doi.org/10.1007/BF02338839
64. Ree, R.H. & Smith, S.A. 2008. Maximum likelihood inference of geographic range evolution by dispersal, local extinction, and cladogenesis. Syst. Biol. 57: 4-14. http://dx.doi.org/10.1080/10635150701883881
65. Ree, R.H., Moore, B.R., Webb, C.O. & Donoghue, M.J. 2005. A likelihood framework for inferring the evolution of geographic range on phylogenetic trees. Evolution 59: 2299-2311.
66. Richardson, J.E., Pennington, R.T., Pennington, T.D. & Hollingsworth, P.M. 2001. Rapid diversification of a species-rich genus of Neotropical rain forest trees. Science 293: 2242-2245. http://dx.doi.org/10.1126/science.1061421
67. Ronquist, F. & Huelsenbeck, J.P. 2003. Mrbayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19: 1572-1574. http://dx.doi.org/10.1093/bioinformatics/btg180
68. Rønsted, N., Chase, M.W., Albach, D.C. & Bello, M.A. 2002. Phylogenetic relationships within Plantago (Plantaginaceae): Evidence from nuclear ribosomal ITS and plastid trnL-F sequence data. Bot. J. Linn. Soc. 139: 323-338. http://dx.doi.org/10.1046/j.1095-8339.2002.00070.x
69. Sang, T., Crawford, D.J. & Stuessy, T.F. 1997. Chloroplast DNA phylogeny, reticulate evolution, and biogeography of Paeonia (Paeoniaceae). Amer. J. Bot. 84: 1120-1136. http://dx.doi.org/10.2307/2446155
70. Shi, Y.F., Li, J.J. & Li, B.Y. 1998. Uplift and environmental changes of Qinghai-Tibetan Plateau in the Late Cenozoic. Guangzhou: Guangdong Science and Technology Press.
71. Shi, Y.F., Li, J.J. & Li, B.Y. 1999. Uplift of the Qinghai-Xizang (Tibetan) Plateau and East Asia environmental change during late Cenozoic. Acta Geogr. Sin. 54:10-21.
72. Spicer, R.A., Harris, N.B., Widdowson, W.M., Herman, A.B., Guo, S., Valdes, P.J., Wolfe, J.A. & Kelly, S.P. 2003. Constant elevation of southern Tibet over the past 15 million years. Nature 421: 622-624. http://dx.doi.org/10.1038/nature01356
73. Steele, K.P. & Vilgays, R. 1994. Phylogenetic analyses of Polemoniaceae using nucleotide sequences of the plastid gene matK. Syst. Bot. 19: 126-142. http://dx.doi.org/10.2307/2419717
74. Sun, H. 2002a. Evolution of Arctic-Tertiary flora in Himalayan-Hengduan Mountains. Acta. Bot. Yunnan. 24: 671-688.
75. Sun, H. 2002b. Tethys retreat and Himalayas-Hengduanshan Mountains uplift and their significance on the origin and development of the Sino-Himalayan elements and alpine flora. Acta. Bot. Yunnan. 24: 273-288.
76. Sun, H., McLewin, W. & Fay, M.F. 2001. Molecular phylogeny of Helleborus (Ranunculaceae), with an emphasis on the East Asian-Mediterranean disjunction. Taxon 50: 1001-1018. http://dx.doi.org/10.2307/1224717
77. Sun, Y.S., Wang, A.L., Wan, D.S., Wang, Q. & Liu, J.Q. 2012. Rapid radiation of Rheum (Polygonaceae) and parallel evolution of morphological traits. Molec. Phylogen. Evol. 63: 150-158. http://dx.doi.org/10.1016/j.ympev.2012.01.002
78. Swofford, D. 2003. PAUP*: Phylogenetic analysis using parsimony (*and other methods), version 4.0b10. Sinauer, Massachusetts: Sinauer.
79. Taberlet, P., Gielly, L., Pautou, G. & Bouvet, J. 1991. Universal primers for amplification of three non-coding regions of chloroplast DNA. Pl. Molec. Biol. 17: 1105-1109. http://dx.doi.org/10.1007/BF00037152
80. Thompson, J.D., Gibson, T.J., Plewniak, F., Jeanmougin, F. & Higgins, D.G. 1997. The CLUSTAL_X windows interface: Flexible strategies for multiple sequences alignment aided by quality analysis tools. Nucl. Acids Res. 25: 4876-4882. http://dx.doi.org/10.1093/nar/25.24.4876
81. Thieret, J.W. 1967. Supraspecific classification in the Scrophulariaceae: A review. Sida 3: 87-106.
82. Tkach, N.V., Hoffmann, M.H., Röser, M. & Hagen, K.B. von 2008. Temporal patterns of evolution in the Arctic explored in Artemisia L. (Asteraceae) lineages of different age. Pl. Ecol. Divers. 1: 161-169. http://dx.doi.org/10.1080/17550870802331912
83. Tu, T.Y., Volis, S., Dillon, M.O., Sun, H. & Wen, J. 2010. Dispersals of Hyoscyameae and Mandragoreae (Solanaceae) from the New World to Eurasia in the early Miocene and their biogeographic diversification within Eurasia. Molec. Phylogen. Evol. 57: 1226-1237. http://dx.doi.org/10.1016/j.ympev.2010.09.007
84. Vikulova, N.V. 1955. Lagotis Gaertn. Pp. 500-512 in: Komarov V.L. (ed.), Flora of the USSR, vol. 22. Enfield: Science Publishers.
85. Wang, W.T. 1992. On some distribution patterns and some migration routes found in the eastern Asiantic region. Acta Phytotax. Sin. 30: 1-24.
86. Wang, Y.J., Li, X.J., Hao, G. & Liu, J.Q. 2004. Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology. Acta Phytotax. Sin. 42: 481-499.
87. Wang, Y.J., Liu, J.Q. & Miehe, G. 2007. Phylogenetic origins of the Himalayan endemic Dolomiaea, Diplazoptilon and Xanthopappus (Asteraceae: Cardueae) based on three DNA regions. Ann. Bot. (Oxford) 99: 311-322. http://dx.doi.org/10.1093/aob/mcl259
88. Wang, Y.J., Susanna, A., Von Raab-Straube, E., Milne, R.I. & Liu, J.Q. 2009. Island-like radiation of Saussurea (Asteraceae: Cardueae) triggered by uplifts of the Qinghai-Tibetan Plateau. Bot. J. Linn. Soc. 97: 893-903.
89. Wehr, W.C. & Hopkins, D.Q. 1994. The Eocene orchards and gardens of Republic, Washington. Washington Geol. 22: 27-34.
90. Wen, J. 1999. Evolution of eastern Asian and eastern North American disjunct distributions in flowering plants. Annual Rev. Ecol. Syst. 30: 421-455. http://dx.doi.org/10.1146/annurev.ecolsys.30.1.421
91. Wen, J. 2001. Evolution of eastern Asian-Eastern North American biogeographic disjunctions: A few additional issues. Int. J. Pl. Sci. 162: S117-S122. http://dx.doi.org/10.1086/322940
92. White, T.J., Bruns, T., Lee, S. & Taylor, J.W. 1990. Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. Pp. 315-322 in: Innis, M.A., Gelfand, D.H., Sninsky, J.J. & White, T.J. (eds.), PCR Protocols: A guide to methods and applications. San Diego: Academic Press.
93. Winkler, M., Tribsch, A., Schneeweiss, G.M., Brodbeck, S., Gugerli, F., Holderegger, R., Abbott, R.J. & Schönswetter, P. 2012. Tales of the unexpected: Phylogeography of the arctic-alpine model plant Saxifraga oppositifolia (Saxifragaceae) revisited. Molec. Ecol. 18: 4618-4630. http://dx.doi.org/10.1111/j.1365-294X.2012.05705.x
94. Wolfe, J. 1975. Some aspects of plant geography of the Northern Hemisphere during the late Cretaceous and Tertiary. Ann. Missouri Bot. Gard. 62: 264-279. http://dx.doi.org/10.2307/2395198
95. Wolfe, J.A., Gregory-Wodzicki, K.M., Molnar, P. & Mustoe, G. 2003. Rapid uplift and then collapse in the Eocene of the Okanagan? Evidence from paleobotany. Geological Association of Canada/Mineralogical Association of Canada/Society Economic Geologists, Joint Annual Meeting. Abstracts volume 28, no. 533 [CD-ROM]. Geological Association of Canada, St. John's, Canada.
96. Wu, C.Y. 1987. Gentianaceae. Pp. 874-902 in: Wu, C.-Y. (ed.), Flora Xizangica. Beijing: Science Press.
97. Wu, C.Y. 1988. Hengduan Mountains flora and her significance. J. Jap. Bot. 63: 297-311.
98. Wu, C.Y. & Wu, S.G. 1996. A proposal for new floristic kingdom (realm). Pp. 3-42 in: Zhang, A.-L. & Wu, S.-G. (eds.), Floristic characteristics and diversity of eastern Asian plants. Hongkong: Springer.
99. Wulff, E.V. 1943. An introduction to historical plant geography. Waltham, Massachusetts: Chronica Botanica Company.
100. Xiang, Q.Y. & Soltis, D.E. 2001. Dispersal-vicariance analyses of intercontinental disjuncts: Historical biogeographical implications for angiosperms in the Northern Hemisphere. Int. J. Pl. Sci. 162 (suppl. 6): S29-S39. http://dx.doi.org/10.1086/323332
101. Xiang, Q.Y., Soltis, D.E. & Soltis, P.S. 1998. The eastern Asian and eastern and western North American floristic disjunction: Congruent phylogenetic patterns in seven diverse genera. Molec. Phylogen. Evol. 10: 178-190. http://dx.doi.org/10.1006/mpev.1998.0524
102. Xiang, Q.Y., Zhang, W.H., Ricklefs, R., Qian, H., Chen, Z.D., Wen, J. & Li, J.H. 2004. Regional differences in rates of plant speciation and molecular evolution: A comparison between eastern Asia and eastern North America. Evolution 58: 2175-2184.
103. Xu, T.T., Abbott, R.J., Milne, R.I., Mao, K., Du, F.K., Wu, G., Ciren, Z., Miehe, G. & Liu, J.Q. 2010. Phylogeography and allopatric divergence of Cypress species (Cupressus L.) in the Qinghai-Tibetan Plateau and adjacent regions. B. M. C. Eevol. Biol. 10: 194. http://dx.doi.org/10.1186/1471-2148-10-194
104. Yamazaki, T. 1971. New and note worthy plants of Scrophulariaceae in Himalaya. J. Jap. Bot. 46(8): 242-244.
105. Yang, F.S., Wang, X.Q. & Hong, D.Y. 2003. Unexpected high divergence in nrDNA ITS and extensive parallelism in floral morphology of Pedicularis (Orobanchaceae). Pl. Syst. Evol. 240: 91-105. http://dx.doi.org/10.1007/s00606-003-0005-2
106. Yang, H.B. 1979. Lagotis. Pp. 325-343 in: Tsoong, P.C. & Yang, H.B. (eds.), Flora Reipublicae Popularis Sinicae, vol. 67. Beijing: Science Press.
107. Yu Y., Harris, A.J. & He, X.J. 2010. S-DIVA (statistical dispersalvicariance analysis): A tool for inferring biogeographic histories. Molec. Phylogen. Evol. 56: 848-850. http://dx.doi.org/10.1016/j.ympev.2010.04.011
108. Yu Y., Harris, A.J. & He, X.J. 2012. RASP (reconstruct ancestral state in phylogenies), version 2.1b. http://mnh.scu.edu.cn/soft /blog/RASP
109. Zhang, M.L. & Fritsch, P.W. 2010. Evolutionary response of Caragana (Fabaceae) to Qinghai-Tibetan Plateau uplift and Asian interior aridification. Pl. Syst. Evol. 288, 191-199. http://dx.doi.org/10.1007/s00606-010-0324-z
110. Zhang, M.L., Uhink, C.H. & Kadereit, J.W. 2007. Phylogeny and biogeography of Epimedium/Vancouveria (Berberidaceae): Western North American-East Asian disjunctions, the origin of European mountain plant taxa, and East Asian species diversity. Syst. Bot. 32: 81-92. http://dx.doi.org/10.1600/036364407780360265
111. Zhang, X.L., Wang, Y.J., Ge, X.J., Yuan, Y.M., Yang, H.L. & Liu, J.Q. 2009. Molecular phylogeny and biogeography of Gentiana sect. Cruciata (Gentianaceae) based on four chloroplast DNA datasets. Taxon 58: 862-870.
112. Zhou, J., Gong, X., Downie, S.R. & Peng, H. 2009. Towards a more robust molecular phylogeny of Chinese Apiaceae subfamily Apioideae: Additional evidence from nrDNA ITS and cpDNA intron (rpl16 and rps16) sequences. Molec. Phylogen. Evol. 53: 56-58. http://dx.doi.org/10.1016/j.ympev.2009.05.029