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DOI:	10.1371/journal.pone.0127821
论文题名:	Adaptive Molecular Evolution of PHYE in Primulina, a Karst Cave Plant
作者:	Junjie Tao; Qingwen Qi; Ming Kang; Hongwen Huang
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-6-1
卷:	10, 期:6
语种:	英语
英文关键词:	Natural selection ; Sequence analysis ; Evolutionary adaptation ; Flowering plants ; Karst features ; Phylogenetic analysis ; Sequence alignment ; Evolutionary genetics
英文摘要:	Limestone Karst areas possess high levels of biodiversity and endemism. Primulina is a typical component of Karst endemic floras. The high species richness and wide distribution in various Karst microenvironments make the genus an idea model for studying speciation and local adaptation. In this study, we obtained 10 full-length sequences of the phytochrome PHYE from available transcriptome resources of Primulina and amplified partial sequences of PHYE from the genomic DNA of 74 Primulina species. Then, we used maximum-likelihood approaches to explore molecular evolution of PHYE in this Karst cave plant. The results showed that PHYE was dominated by purifying selection in both data sets, and two sites were identified as potentially under positive selection. Furthermore, the ω ratio varies greatly among different functional domains of PHYE and among different species lineages. These results suggest that potential positive selection in PHYE might have played an important role in the adaption of Primulina to heterogeneous light environments in Karst regions, and different species lineages might have been subjected to different selective pressures.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0127821&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21248
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0127821.PDF（683KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China;University of Chinese Academy of Sciences, Beijing, China;Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China;University of Chinese Academy of Sciences, Beijing, China;Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China;Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China

Recommended Citation:

Junjie Tao,Qingwen Qi,Ming Kang,et al. Adaptive Molecular Evolution of PHYE in Primulina, a Karst Cave Plant[J]. PLOS ONE,2015-01-01,10(6)

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