Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Phylogeography of Hippophae neurocarpa (Elaeagnaceae) inferred from the chloroplast DNA trnL-F sequence variation | |
Meng, Li-Hua1,2,3; Yang, Hui-Ling1; Wu, Gui-Li2; Wang, Yu-Jin1,2 | |
2008 | |
发表期刊 | JOURNAL OF SYSTEMATICS AND EVOLUTION |
卷号 | 46期号:1页码:32-40 |
文章类型 | Article |
摘要 | The topological effect of the Qinghai-Tibetan Plateau during the Quaternary climatic oscillation must have important effects on spatial distribution and genetic structure of organisms distributed there. At the same time, the ecological niches provided by the uplifts of the plateau and the following Quaternary climatic changes may have promoted morphological differentiation and speciation of plants occurring there. The plateau endemic Hippophae neurocarpa (Elaeagnaceae) is a dominant shrub species along the streams or rivers and it also occurs in the semiarid ecosystem. This species is recognized as two separate subspecies, i.e. ssp. neurocarpa and ssp. stellatopilosa, mainly according to the appendages on leaves and different habitat preferences. The former is characteristic of scale-like appendages on the leaves and distributed in the drier and colder habitats while the latter has stellate hairs with a preference of occurring in the wetter and warmer habitats. It is interesting to know whether the morphological sub-speciation of H. neurocarpa is correlated with the intra-specific chloroplast phylogeny. In addition, this species also provide a good proxy to test the hypothesis that a few cold- or dry-tolerating species survive in the high altitude region of the plateau during the Quaternary glacial stages. In this study, we examined chloroplast trnL-F sequence variation from both subspecies of H. neurocarpa. The chloroplast genome was found to be maternally inherited in Hippophae and the intraspecific genealogy may reflect the maternal lineage sorting between both subspecies. A total of eight haplotypes were recovered through sequencing 70 individuals from 14 populations. One was shared by both subspecies, and four and three were only found in ssp. neurocarpa and ssp. stellatopilosa respectively. These findings suggested that two subspecies did not show genealogical concordance with morphological differentiation in this fragment. The constructed nested cladogram classified eight haplotypes into three lineages: one consisted of endemic haplotypes of ssp. neurocarpa and the other two included haplotypes from both subspecies with those of ssp. neurocarpa at the tip positions. In addition, the unique haplotypes recovered in the high altitude suggested that this species might have survived in these and habitats. The contiguous range expansion was detected from these different refugia. |
关键词 | Contiguous Range Expansion Cpdna Hippophae Neurocarpa Phylogeography Qinghai-tibetan Plateau Refugia Sub-speciation Trnl-f |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
关键词[WOS] | QINGHAI-TIBETAN PLATEAU ; MOLECULAR PHYLOGENY ; INTRASPECIFIC VARIATION ; EVOLUTION ; MORPHOLOGY ; DIFFERENTIATION ; AMPLIFICATION ; BIOGEOGRAPHY ; HAPLOTYPES ; ASTERACEAE |
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:000256539000005 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/6883 |
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, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 2.Lanzhou Univ, Sch Life Coll, MOE Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Meng, Li-Hua,Yang, Hui-Ling,Wu, Gui-Li,et al. Phylogeography of Hippophae neurocarpa (Elaeagnaceae) inferred from the chloroplast DNA trnL-F sequence variation[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2008,46(1):32-40. |
APA | Meng, Li-Hua,Yang, Hui-Ling,Wu, Gui-Li,&Wang, Yu-Jin.(2008).Phylogeography of Hippophae neurocarpa (Elaeagnaceae) inferred from the chloroplast DNA trnL-F sequence variation.JOURNAL OF SYSTEMATICS AND EVOLUTION,46(1),32-40. |
MLA | Meng, Li-Hua,et al."Phylogeography of Hippophae neurocarpa (Elaeagnaceae) inferred from the chloroplast DNA trnL-F sequence variation".JOURNAL OF SYSTEMATICS AND EVOLUTION 46.1(2008):32-40. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论