气候变化领域集成服务门户(CCPortal): Contraction and expansion: global geographical variation in reproductive systems of Primula is driven by different mechanisms

CCPortal

DOI	10.1111/jbi.14849
	Contraction and expansion: global geographical variation in reproductive systems of Primula is driven by different mechanisms
	Shi, Honghua; Yang, Bin; Lyu, Tong; Wang, Zhiheng; Sun, Hang
发表日期	2024
ISSN	0305-0270
EISSN	1365-2699
英文摘要	Aim: Reproductive systems strongly influence plants' evolution and adaption, and the biogeographic pattern of its variation has intrigued biologists and ecologists. Here, to test the impacts of paleoglaciation on plants' reproductive system variation, we compared the geographical pattern and environmental drivers in the proportions of different reproductive systems in Primula in regions affected and unaffected by paleoglaciation. Location: Global. Time Period: Since the Last Glacial Maximum (LGM). Major Taxa Studied: Primula. Methods: Using data on reproductive systems and distributions of 604 Primula taxa around the world and 221 along the elevational gradient of the Himalayas, we demonstrated the global pattern and the elevational pattern in the proportions of homostylous taxa. We employed general linear models to establish the relationship between the proportion of homostylous taxa and environmental variables and hierarchical partitioning to assess the relative contributions of these variables in both regions affected and unaffected by paleoglaciation, respectively. Results: We found a higher proportion of homostylous taxa in regions glaciated during the LGM than those unglaciated, with different latitudinal patterns and climate drivers. The proportion of homostylous taxa showed varying trends across different regions: increasing with latitude and temperature anomaly in glaciated regions while concentrating at lower latitudes with higher winter temperatures in unglaciated regions. Additionally, homostylous taxa were more prevalent at lower elevations in the Himalayas. Main Conclusions: Our study provides the first quantitative evidence for the hypothesis that selfers are more prevailing in regions affected by paleoglaciation facilitated by recolonization via comparing the geographic pattern and drivers in regions affected and unaffected by paleoglaciation. Our findings also reveal the concentrated distribution of homostylous taxa in Primula at low latitudes, which may be the result of population shrinkage caused by heat stress, facing a more severe survival crisis under the circumstances of global warming and increasing human activities.
英文关键词	floral evolution; geographical pattern; macroecology; paleoglaciation; plant reproduction; Primula; reproductive system
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Ecology ; Geography, Physical
WOS记录号	WOS:001204149100001
来源期刊	JOURNAL OF BIOGEOGRAPHY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301925
作者单位	Chinese Academy of Sciences; Kunming Institute of Botany, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences; Xishuangbanna Tropical Botanical Garden, CAS; Peking University; Peking University; Peking University; Beijing Normal University; Chinese Academy of Sciences; Kunming Institute of Botany, CAS
推荐引用方式 GB/T 7714	Shi, Honghua,Yang, Bin,Lyu, Tong,et al. Contraction and expansion: global geographical variation in reproductive systems of Primula is driven by different mechanisms[J],2024.
APA	Shi, Honghua,Yang, Bin,Lyu, Tong,Wang, Zhiheng,&Sun, Hang.(2024).Contraction and expansion: global geographical variation in reproductive systems of Primula is driven by different mechanisms.JOURNAL OF BIOGEOGRAPHY.
MLA	Shi, Honghua,et al."Contraction and expansion: global geographical variation in reproductive systems of Primula is driven by different mechanisms".JOURNAL OF BIOGEOGRAPHY (2024).