Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology

NWIPB OpenIR

	Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology
	Wang, YJ ; Li, XJ ; Hao, G ; Liu, JQ
	2004-11-01
发表期刊	ACTA PHYTOTAXONOMICA SINICA
卷号	42 期号:6 页码:481-499
文章类型	Article
摘要	Androsace L. consists of more than 100 species distributed mainly in northern temperate areas. This genus, typically characterized by having small flowers with a constricted corolla throat, was subdivided into six sections: sect. Samuelia Schlechtd., sect. Mirabiles (Hand. -Mazz.) Yang & Huang, sect. Androsace, sect. Chamaejasme Koch., sect. Aizoidium Hand. -Mazz., and sect. Orthocaulon Hand. -Mazz. In this genus, the species with cushion-like growth belong to sect. Chamaejasme occurring in alpine habitats. There are other three small genera in the tribe Androsaceae. Pomatosace Maxim., with only one species, P. filicula Maxim., endemic to Qinghai-Tibetan Plateau, is traditionally placed in the subtribe Soldanellinae because of its circumscissile capsules, but other morphological characters and the recently reported evidence from cytology indicate that its affinity is closer with Androsace. Douglasia Lindley has eight homogeneous species in Northern American mountains. Vitaliana Sesler, with only one species in the European Alps, is usually considered a congener of Douglasia. These four genera, morphologically similar in having small flowers with a constricted corolla throat and "Androsace pollen", referred here as "Androsace group", am disjunctly distributed from the Qinghai-Tibetan Plateau, to Central- and Northern-Asia, Europe and North America. It is an ideal group to elucidate the origin and dispersal patterns of the Northern Hemisphere flora, which has a distribution center in the eastern Qinghai-Tibetan Plateau and the Hengduan Mountains. In addition, the habits of this group range from annuals to rosette perennials and cushion-like perennials. The cushion-like species are disjunctly distributed in the central Qinghai-Tibetan Plateau and European Alps mountains. Further studies are needed to determine whether they are closely related to each other or it is only the result of convergent evolution under the habitat pressure selection in separate sites.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	DNA SUBSTITUTION ; CHLOROPLAST DNA ; GENE RBCL ; MYR AGO ; TIBET ; ASTERACEAE ; SEQUENCES
收录类别	SCI
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000225657700001
引用统计	被引频次：49[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6844
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, NW Plateau Inst Biol, Qinghai Tibet Plateau Biol Evolut & Adaptat Lab, Xining 810008, Peoples R China 2.Chinese Acad Sci, S China Bot Garden, Guangzhou 510620, Peoples R China 3.Lanzhou Univ, Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, YJ,Li, XJ,Hao, G,et al. Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology[J]. ACTA PHYTOTAXONOMICA SINICA,2004,42(6):481-499.
APA	Wang, YJ,Li, XJ,Hao, G,&Liu, JQ.(2004).Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology.ACTA PHYTOTAXONOMICA SINICA,42(6),481-499.
MLA	Wang, YJ,et al."Molecular phylogeny and biogeography of Androsace (Primulaceae) and the convergent evolution of cushion morphology".ACTA PHYTOTAXONOMICA SINICA 42.6(2004):481-499.