Role of the Qinghai-Tibetan Plateau uplift in the Northern Hemisphere disjunction: evidence from two herbaceous genera of Rubiaceae
Deng, Tao1; Zhang, Jian-Wen1; Meng, Ying2; Volis, Sergei1; Sun, Hang1; Nie, Ze-Long2
2017-10-17
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号7期号:1页码:1
摘要

To assess the role of the Qinghai-Tibetan Plateau uplift in shaping the intercontinental disjunction in Northern Hemisphere, we analyzed the origin and diversification within a geological timeframe for two relict herbaceous genera, Theligonum and Kelloggia (Rubiaceae). Phylogenetic relationships within and between Theligonum and Kelloggia as well as their relatives were inferred using five chloroplast markers with parsimony, Bayesian and maximum-likelihood approaches. Migration routes and evolution of these taxa were reconstructed using Bayesian relaxed molecular clock and ancestral area reconstruction. Our results suggest the monophyly of each Theligonum and Kelloggia. Eastern Asian and North American species of Kelloggia diverged at ca. 18.52 Mya and the Mediterranean species of Theligonum diverged from eastern Asian taxa at ca. 13.73 Mya. Both Kelloggia and Theligonum are Tethyan flora relicts, and their ancestors might have been occurred in warm tropical to subtropical environments along the Tethys coast. The Qinghai-Tibetan Plateau separated the eastern and western Tethyan area may contribute significantly to the disjunct distributions of Theligonum, and the North Atlantic migration appears to be the most likely pathway of expansion of Kelloggia to North America. Our results highlight the importance role of the QTP uplift together with corresponding geological and climatic events in shaping biodiversity and biogeographic distribution in the Northern Hemisphere.

语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/60289
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Jishou Univ, Coll Biol & Environm Sci, Key Lab Plant Resources Conservat & Utilizat, Jishou 416000, Hunan, Peoples R China
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Deng, Tao,Zhang, Jian-Wen,Meng, Ying,et al. Role of the Qinghai-Tibetan Plateau uplift in the Northern Hemisphere disjunction: evidence from two herbaceous genera of Rubiaceae[J]. SCIENTIFIC REPORTS,2017,7(1):1.
APA Deng, Tao,Zhang, Jian-Wen,Meng, Ying,Volis, Sergei,Sun, Hang,&Nie, Ze-Long.(2017).Role of the Qinghai-Tibetan Plateau uplift in the Northern Hemisphere disjunction: evidence from two herbaceous genera of Rubiaceae.SCIENTIFIC REPORTS,7(1),1.
MLA Deng, Tao,et al."Role of the Qinghai-Tibetan Plateau uplift in the Northern Hemisphere disjunction: evidence from two herbaceous genera of Rubiaceae".SCIENTIFIC REPORTS 7.1(2017):1.
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