IB-CAS  > 中科院北方资源植物重点实验室
Phylogeny, habitat together with biological and ecological factors can influence germination of 36 subalpine Rhododendron species from the eastern Tibetan Plateau
Wang, Yongji; Lai, Liming1; Du, Hui1; Jiang, Lianhe1; Wang, Fei1; Zhang, Chao1; Zhuang, Ping1; Zheng, Yuanrun1
2018
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume8Issue:7Pages:3589-3598
AbstractThe 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.
Keywordaltitude habitat phylogeny plant height Rhododendron seed germination seed mass Tibet
Subject AreaEcology ; Evolutionary Biology
DOI10.1002/ece3.3874
Indexed BySCI
Language英语
WOS KeywordSEED-GERMINATION ; LIFE-HISTORY ; GEOGRAPHIC-VARIATION ; HALOPHYTE SHRUB ; RADICLE GROWTH ; SOIL-MOISTURE ; MASS ; TEMPERATURE ; SIZE ; GRADIENTS
WOS IDWOS:000430119900002
PublisherWILEY
SubtypeArticle
Publication PlaceHOBOKEN
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41401105]
Corresponding Author Emailzhengyr@ibcas.ac.cn
OAgold, Green Published
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/20554
Collection中科院北方资源植物重点实验室
Affiliation1.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
Recommended Citation
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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