Geographic Cline and Genetic Introgression Effects on Seed Morphology Variation and Germination Fitness in Two Closely Related Pine Species in Southeast Asia
文献类型：期刊论文
| 作者 | Zheng-Ren Zhang; Wei-Ying Li; Yi-Yi Dong ; Jing-Xin Liu; Qin-Ying Lan; Yang, Xue3; Pei-Yao Xin; Gao, Jie2,4
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| 刊名 | FORESTS
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| 出版日期 | 2022 |
| 卷号 | 13期号:3页码:- |
| 关键词 | seed trait seed germination environmental factors fitness genetic introgression Pinus kesiya Pinus yunnanensis |
| ISSN号 | 1999-4907 |
| DOI | 10.3390/f13030374 |
| 英文摘要 | There is still limited information on how genetic introgression impacts morphological variation and population fitness in long-lived conifer species. Two closely related pine species, Pinus kesiya Royle ex Gordon and Pinus yunnanensis Franch. are widely distributed over Southeast Asia and Yunnan province of China, with a large spatial scale of asymmetric genetic introgression and hybridization, and form a hybrid lineage, P. kesiya var. langbianensis, where their ranges overlap in southeast Yunnan. We compared seed trait variation and germination performance between hybrids and parental species and characterized environmental gradients to investigate the genetic and ecological evolutionary consequences of genetic introgression. We found that seed width (SW) differed significantly among the three pines, and all the seed traits were significantly negatively correlated with latitude and associated with the mean temperatures of the driest and wettest quarters. A higher germination fitness of hybrids was detected at a low temperature, indicating that they had better adaptability to temperature stress than their parental species during the germination process. Our results suggest that environmental factors shape seed phenotypic variation in the pine species and that genetic introgression significantly affects seed germination fitness. Therefore, assisting gene flow in natural forest populations might facilitate their adaptation to climate change. |
| 学科主题 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000775548100001 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/12979]  |
| 专题 | 西双版纳热带植物园_2012年后新成立研究组 |
| 作者单位 | 1.Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China 2.Jilin Agr Univ, Coll Life Sci, Changchun 130118, Peoples R China 3.Chinese Acad Sci, Ctr Conservat Biol, Core Bot Gardens, Mengla 666303, Peoples R China 4.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China 5.Southwest Forestry Univ, Southwest Res Ctr Landscape Architecture Engn, State Forestry & Grassland Adm, Kunming 650224, Yunnan, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng-Ren Zhang,Wei-Ying Li,Yi-Yi Dong,et al. Geographic Cline and Genetic Introgression Effects on Seed Morphology Variation and Germination Fitness in Two Closely Related Pine Species in Southeast Asia[J]. FORESTS,2022,13(3):-. |
| APA | Zheng-Ren Zhang.,Wei-Ying Li.,Yi-Yi Dong.,Jing-Xin Liu.,Qin-Ying Lan.,...&Gao, Jie.(2022).Geographic Cline and Genetic Introgression Effects on Seed Morphology Variation and Germination Fitness in Two Closely Related Pine Species in Southeast Asia.FORESTS,13(3),-. |
| MLA | Zheng-Ren Zhang,et al."Geographic Cline and Genetic Introgression Effects on Seed Morphology Variation and Germination Fitness in Two Closely Related Pine Species in Southeast Asia".FORESTS 13.3(2022):-. |
入库方式： OAI收割
来源：西双版纳热带植物园
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