Needle morphological evidence of the homoploid hybrid origin of Pinus densata based on analysis of artificial hybrids and the putative parents, Pinus tabuliformis and Pinus yunnanensis

doi:10.1002/ece3.1062

	Needle morphological evidence of the homoploid hybrid origin of Pinus densata based on analysis of artificial hybrids and the putative parents, Pinus tabuliformis and Pinus yunnanensis
	Xing, Fangqian ; Mao, Jian-Feng ; Meng, Jingxiang ; Dai, Jianfeng ; Zhao, Wei 1; Liu, Hao 2; Xing, Zhen 2; Zhang, Hua 2; Wang, Xiao-Ru ; Li, Yue
	2014
发表期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
卷号	4 期号:10 页码:1890-1902
摘要	Genetic analyses indicate that Pinus densata is a natural homoploid hybrid originating from Pinus tabuliformis and Pinus yunnanensis. Needle morphological and anatomical features show relative species stability and can be used to identify coniferous species. Comparative analyses of these needle characteristics and phenotypic differences between the artificial hybrids, P.densata, and parental species can be used to determine the genetic and phenotypic evolutionary consequences of natural hybridization. Twelve artificial hybrid families, the two parental species, and P.densata were seeded in a high-altitude habitat in Linzhi, Tibet. The needles of artificial hybrids and the three pine species were collected, and 24 needle morphological and anatomical traits were analyzed. Based on these results, variations in 10 needle traits among artificial hybrid families and 22 traits among species and artificial hybrids were predicted and found to be under moderate genetic control. Nineteen needle traits in artificial hybrids were similar to those in P.densata and between the two parental species, P.tabuliformis and P.yunnanensis. The ratio of plants with three needle clusters in artificial hybrids was 22.92%, which was very similar to P.densata. The eight needle traits (needle length, the mean number of stomata in sections 2mm in length of the convex and flat sides of the needle, mean stomatal density, mesophyll/vascular bundle area ratio, mesophyll/resin canal area ratio, mesophyll/(resin canals and vascular bundles) area ratio, vascular bundle/resin canal area ratio) relative to physiological adaptability were similar to the artificial hybrids and P.densata. The similar needle features between the artificial hybrids and P.densata could be used to verify the homoploid hybrid origin of P.densata and helps to better understand of the hybridization roles in adaptation and speciation in plants.
关键词	Anatomy artificial hybrid morphology Pinus densata Pinus tabuliformis Pinus yunnanensis
学科领域	Ecology ; Evolutionary Biology
DOI	10.1002/ece3.1062
收录类别	SCI
语种	英语
WOS关键词	HELIANTHUS-PARADOXUS ASTERACEAE ; TIBETAN PLATEAU ; PLANT HYBRIDIZATION ; SPECIATION ; SELECTION ; DIVERGENCE ; COLONIZATION ; SUNFLOWERS ; CHARACTERS ; HABITATS
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS记录号	WOS:000336491600012
出版者	WILEY-BLACKWELL
文献子类	Article
出版地	HOBOKEN
资助机构	Natural Science Foundation of China [31070591] ; Special National Forestry Public Welfare Industry Research [201104022] ; Agriculture and Animal Husbandry College of Tibet University
作者邮箱	liyue@bjfu.edu.cn
作品OA属性	Green Published, gold
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27109
专题	系统与进化植物学国家重点实验室
作者单位	1.Beijing Forestry Univ, Minist Educ, Key Lab Genet & Breeding Forest Trees & Ornamenta, Natl Engn Lab Forest Tree Breeding, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 3.Tibet Univ, Coll Agr & Anim Husb, Coll Resources & Environm, Linzhi 860000, Peoples R China 4.Umea Univ, Dept Ecol & Environm Sci, SE-90187 Umea, Sweden
推荐引用方式 GB/T 7714	Xing, Fangqian,Mao, Jian-Feng,Meng, Jingxiang,et al. Needle morphological evidence of the homoploid hybrid origin of Pinus densata based on analysis of artificial hybrids and the putative parents, Pinus tabuliformis and Pinus yunnanensis[J]. ECOLOGY AND EVOLUTION,2014,4(10):1890-1902.
APA	Xing, Fangqian.,Mao, Jian-Feng.,Meng, Jingxiang.,Dai, Jianfeng.,Zhao, Wei.,...&Li, Yue.(2014).Needle morphological evidence of the homoploid hybrid origin of Pinus densata based on analysis of artificial hybrids and the putative parents, Pinus tabuliformis and Pinus yunnanensis.ECOLOGY AND EVOLUTION,4(10),1890-1902.
MLA	Xing, Fangqian,et al."Needle morphological evidence of the homoploid hybrid origin of Pinus densata based on analysis of artificial hybrids and the putative parents, Pinus tabuliformis and Pinus yunnanensis".ECOLOGY AND EVOLUTION 4.10(2014):1890-1902.

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