Chloroplast DNA phylogeography reveals repeated range expansion in a widespread aquatic herb Hippuris vulgaris in the Qinghai-Tibetan Plateau and adjacent areas.
Chloroplast DNA phylogeography reveals repeated range expansion in a widespread aquatic herb Hippuris vulgaris in the Qinghai-Tibetan Plateau and adjacent areas.
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DOI：
10.1371/journal.pone.0060948
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Wang QF
中科院分区：
文献类型：
--
作者：
Chen JM;Du ZY;Sun SS;Gituru RW;Wang QF
青藏高原是世界上分布最广的高山植物生境之一。第四纪冰期的气候振荡对青藏高原及其邻近地区的物种分布范围产生了巨大的影响。然而，水生植物物种的分布范围如何在QTP上响应第四纪气候变化的转移几乎仍然是未知的。我们研究了QTP和邻近地区广泛分布的水生草本植物Hippuris vulgaris的地理和人口历史。我们的样本包括来自47个自然种群的385个个体。普通的利用四个叶绿体DNA（cpDNA）非编码区的序列，我们区分了八种不同的cpDNA单倍型。从H. vulgaris的种群分化程度很高（GST = 0.819），但其地理结构不明显（NST = 0.853> GST = 0.819，P> 0.05）。 系统发育分析揭示了两个主要的cpDNA单倍型谱系。这两个单倍型组之间的分裂可以追溯到更新世中期至晚期（约2000年）。4.8亿卢比）。不匹配分布分析表明，每一个都经历了最近的范围扩大。这两个扩展（CA。0.12和17万年）可能来自末次盛冰期（LGM）之前的不同难民。这项研究启动了青藏高原水生草本植物的生态地理学研究，并首次揭示了青藏高原高山水生种子植物物种对第四纪气候振荡的响应。
The Qinghai-Tibetan Plateau (QTP) is one of the most extensive habitats for alpine plants in the world. Climatic oscillations during the Quaternary ice age had a dramatic effect on species ranges on the QTP and the adjacent areas. However, how the distribution ranges of aquatic plant species shifted on the QTP in response to Quaternary climatic changes remains almost unknown. We studied the phylogeography and demographic history of the widespread aquatic herb Hippuris vulgaris from the QTP and adjacent areas. Our sampling included 385 individuals from 47 natural populations of H. vulgaris. Using sequences from four chloroplast DNA (cpDNA) non-coding regions, we distinguished eight different cpDNA haplotypes. From the cpDNA variation in H. vulgaris, we found a very high level of population differentiation (G ST = 0.819) but the phylogeographical structure remained obscure (N ST = 0.853>G ST = 0.819, P>0.05). Phylogenetic analyses revealed two main cpDNA haplotype lineages. The split between these two haplotype groups can be dated back to the mid-to-late Pleistocene (ca. 0.480 Myr). Mismatch distribution analyses showed that each of these had experienced a recent range expansion. These two expansions (ca. 0.12 and 0.17 Myr) might have begun from the different refugees before the Last Glacial Maximum (LGM). This study initiates a research on the phylogeography of aquatic herbs in the QTP and for the first time sheds light on the response of an alpine aquatic seed plant species in the QTP to Quaternary climate oscillations.
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影响因子：
4.9
作者：
Clement, M;Posada, D;Crandall, KA
通讯作者：
Crandall, KA
基于质体 DNA 和内转录间隔片段的红景天（景天科）种内分歧
影响因子：
2.4
作者：
Gao, Qingbo;Zhang, Dejun;Chen, Shilong
通讯作者：
Chen, Shilong
影响因子：
2.4
作者：
Chen, Shengyun;Wu, Guili;Chen, Shilong
通讯作者：
Chen, Shilong
影响因子：
1.2
作者：
DONNELLY, P;TAVARE, S
通讯作者：
TAVARE, S
DOI：
10.1098/rstb.2003.1388
发表时间：
2004-02-29
影响因子：
6.3
作者：
Hewitt, GM
通讯作者：
Hewitt, GM