Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau

doi:10.1002/ece3.3874

	Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau
	Wang, Yongji ; Lai, Liming 1; Du, Hui 1; Jiang, Lianhe 1; Wang, Fei 1; Zhang, Chao 1; Zhuang, Ping 1; Zheng, Yuanrun1
	2018
发表期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
卷号	8 期号:7 页码:3589-3598
摘要	The reproductive stages of the life cycle are crucial in explaining the distribution patterns of plant species because of their extreme vulnerability to environmental conditions. Despite reported evidence that seed germination is related to habitat macroclimatic characteristics, such as mean annual temperature, the effect of this trait in controlling plant species distribution has not yet been systematically and quantitatively evaluated. To learn whether seed germination can predict species distribution along altitude gradients, we examined germination data of 36 Rhododendron species in southeastern Tibet originating from contrasting altitudes, habitats, plant heights, seed masses, and phylogenies. Germination varied significantly with altitude, habitat, plant height, and phylogeny and was higher in the light than in the dark. Germination percentage was highest at 10:20 degrees C in the light and 15:25 degrees C in the dark. As altitude increased, germination percentages first rose and then decreased, being highest at 3,500-4,000m. Germination percentage and rate were highest on rocky slopes, increasing as seed mass and plant height rose. Variations in germination percentage and rate were not significant at subgenera, section, and subsection levels, but they were significant at species level. The results suggested that the relationship between germination and altitude may provide insights into species distribution patterns. Further, germination patterns are a result of long-term evolution as well as taxonomic constraints.
关键词	altitude habitat phylogeny plant height Rhododendron seed germination seed mass Tibet
学科领域	Ecology ; Evolutionary Biology
DOI	10.1002/ece3.3874
收录类别	SCI
语种	英语
WOS关键词	SEED-GERMINATION ; LIFE-HISTORY ; GEOGRAPHIC-VARIATION ; HALOPHYTE SHRUB ; RADICLE GROWTH ; SOIL-MOISTURE ; MASS ; TEMPERATURE ; SIZE ; GRADIENTS
WOS记录号	WOS:000430119900002
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41401105]
作者邮箱	zhengyr@ibcas.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：5[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/2S10CLM1/20554
专题	中科院北方资源植物重点实验室
作者单位	1.Shanxi Normal Univ, Linfen, Shanxi, Peoples R China 2.Chinese Acad Sci, Key Lab Resource Plants, West China Subalpine Bot Garden, Inst Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yongji,Lai, Liming,Du, Hui,et al. Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau[J]. ECOLOGY AND EVOLUTION,2018,8(7):3589-3598.
APA	Wang, Yongji.,Lai, Liming.,Du, Hui.,Jiang, Lianhe.,Wang, Fei.,...&Zheng, Yuanrun.(2018).Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau.ECOLOGY AND EVOLUTION,8(7),3589-3598.
MLA	Wang, Yongji,et al."Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau".ECOLOGY AND EVOLUTION 8.7(2018):3589-3598.

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