Chloroplast phylogeography of Dipentodon (Dipentodontaceae) in southwest China and northern Vietnam

Molecular Ecology
Qing-Jun YuanSong Ge

Abstract

The evolutionary history of plants in the southeast Tibetan Plateau might be the most complicated around the world because of the area's extremely complex topography and climate induced by strong tectonic activity in recent history. In this research, we implemented a phylogeographical study using chloroplast sequences (psbA-trnH and trnQ-rps16 intergenic spacer) on Dipentodon, a monotypic or ditypic genus (D. sinicus and D. longipedicellatus) distributed in southwest China and adjacent areas including Myanmar (Burma), northeast India and northern Vietnam. A total of 257 samples from 16 populations from the southeast Tibetan Plateau (D. longipedicellatus) and the Yungui Plateau (D. sinicus) were collected. The results revealed that Dipentodon had 11 haplotypes for the two intergenic spacers, high genetic diversity (h(T) = 0.902) and high genetic differentiation (N(ST) = 0.987 and G(ST) = 0.948). amova analysis showed that the component of among-population within region/species (55.25%) was unexpectedly larger than the among-species/region component (43.69%), which indicates that there is no justification for recognizing two species in Dipentodon. Correlation of pairwise genetic and geographical distances showed that Dipentodon p...Continue Reading

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Citations

Jul 6, 2010·Science China. Life Sciences·LuQi HuangWenYuan Gao
Dec 9, 2008·Molecular Phylogenetics and Evolution·Shannon D Fehlberg, Tom A Ranker
Jan 15, 2009·Molecular Ecology·Loren RiesebergNolan Kane
Dec 1, 2011·Environmental Microbiology Reports·Ying ZhangKe-Qin Zhang
Dec 30, 2014·Ecology and Evolution·Xi-Di GuoJian-Ping Ge
Apr 19, 2018·BMC Ophthalmology·Qing HuangWei Fan

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