Adaptive Differentiation in Seedling Traits in a Hybrid Pine Species Complex, Pinus densata and Its Parental Species, on the Tibetan Plateau

doi:10.1371/journal.pone.0118501

CORC > 植物研究所 > 中国科学院植物研究所 > 系统与进化植物学国家重点实验室

	Adaptive Differentiation in Seedling Traits in a Hybrid Pine Species Complex, Pinus densata and Its Parental Species, on the Tibetan Plateau
	Meng, Jingxiang ; Mao, Jian-Feng ; Zhao, Wei 4; Xing, Fangqian 3; Chen, Xinyu 3; Liu, Hao 5; Xing, Zhen 5; Wang, Xiao-Ru ; Li, Yue 3
刊名	PLOS ONE
	2015
卷号	10 期号:3
ISSN号	1932-6203
DOI	10.1371/journal.pone.0118501
文献子类	Article
英文摘要	Evidence from molecular genetics demonstrates that Pinus densata is a natural homoploid hybrid originating from the parent species Pinus tabuliformis and Pinus yunnanensis, and ecological selection may have played a role in the speciation of Pinus densata. However, data on differentiation in adaptive traits in the species complex are scarce. In this study, we performed a common garden test on 16 seedling traits to examine the differences between Pinus densata and its parental species in a high altitude environment. We found that among the 16 analyzed traits, 15 were significantly different among the species. Pinus tabuliformis had much earlier bud set and a relatively higher bud set ratio but poorer seedling growth, and Pinus yunnanensis had opposite responses for the same traits. Pinus densata had the greatest fitness with higher viability and growth rates than the parents. The relatively high genetic contribution of seedling traits among populations suggested that within each species the evolutionary background is complex. The correlations between the seedling traits of a population within a species and the environmental factors indicated different impacts of the environment on species evolution. The winter temperature is among the most important climate factors that affected the fitness of the three pine species. Our investigation provides empirical evidence on adaptive differentiation among this pine species complex at seedling stages.
学科主题	Multidisciplinary Sciences
出版地	SAN FRANCISCO
WOS关键词	UV-B RADIATION ; FROST HARDINESS ; BUD SET ; SPECIATION ; GROWTH ; FITNESS ; HYBRIDIZATION ; PLANTS ; DNA ; PHYLOGEOGRAPHY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000351275700022
资助机构	Natural Science Foundation of China [31070591] ; State Forestry Administration of China of special public-funded project [201104022]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/26019]
专题	系统与进化植物学国家重点实验室
作者单位	1.Tibet Univ, Coll Agr & Anim Husb, Coll Resources & Environm, Linzhi, Tibet, Peoples R China 2.Umea Univ, Dept Ecol & Environm Sci, Umea, Sweden 3.Beijing Forestry Univ, Key Lab Genet & Breeding Forest Trees & Ornamenta, State Engn Lab Forest Tree Breeding, Beijing, Peoples R China 4.Beijing Forestry Univ, Coll Biol Sci & Technol, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Meng, Jingxiang,Mao, Jian-Feng,Zhao, Wei,et al. Adaptive Differentiation in Seedling Traits in a Hybrid Pine Species Complex, Pinus densata and Its Parental Species, on the Tibetan Plateau[J]. PLOS ONE,2015,10(3).
APA	Meng, Jingxiang.,Mao, Jian-Feng.,Zhao, Wei.,Xing, Fangqian.,Chen, Xinyu.,...&Li, Yue.(2015).Adaptive Differentiation in Seedling Traits in a Hybrid Pine Species Complex, Pinus densata and Its Parental Species, on the Tibetan Plateau.PLOS ONE,10(3).
MLA	Meng, Jingxiang,et al."Adaptive Differentiation in Seedling Traits in a Hybrid Pine Species Complex, Pinus densata and Its Parental Species, on the Tibetan Plateau".PLOS ONE 10.3(2015).