干旱区生态环境知识资源中心(Arid): Linking South American dry regions by the Gran Chaco: Insights from the evolutionary history and ecological diversification of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae)

Arid

DOI	10.1111/jse.13023
	Linking South American dry regions by the Gran Chaco: Insights from the evolutionary history and ecological diversification of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae)
	Bena, Maria J.; Baranzelli, Matias C.; Costas, Santiago M.; Cosacov, Andrea; Acosta, Maria C.; Moreira-Munoz, Andres; Sersic, Alicia N.
通讯作者	Bena, MJ
来源期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
EISSN	1759-6831
出版年	2024
卷号	62 期号:4 页码:758-774
英文摘要	Geoclimatic events driving South American aridization have generated biota differentiation due to barriers and new environment formation. New environments allow species climatic niche evolution, or the geographical expansion of an existing one. Understanding the role these processes play may clarify the evolution of South American biota. Gomphrena L. ranges across almost all the continent's arid environments. We tested whether South American drylands are biogeographically connected through the Gran Chaco but, due to different aridity levels, lineage diversification could have also been associated with the evolution of climatic niches and morphological or physiological traits. With available data, we generated a dated phylogeny, estimated ancestral ranges, performed diversification analyses, reconstructed ancestral states of two characters, and examined if niches have changed between lineages. Results showed that Gomphrena diversified throughout the easternmost South American drylands similar to 15.4 Ma, and subsequently three independent clades colonized the western arid regions during the last Andean pulse, and after the marine transgressions (similar to 4.8-0.4 Ma) via the Gran Chaco. The colonization implied an increase in the diversification rate of annuals over perennials and the progressive east-west differentiation of the occupied climatic niche. This diversification was influenced by C-4 photosynthesis, which could have acted as a niche opener to conquer new environments after the Paranaean Sea withdrew. Spatiotemporal patterns found in Gomphrena suggest that geographical expansion and evolution of climatic niches played a common but decoupled role in promoting diversification. These results show that the Gran Chaco may have acted as a historical connection linking South American drylands.
英文关键词	arid-adapted clade Chaco climatic niche evolution dry diagonals Gomphrena habit evolution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001089219400001
WOS关键词	SPECIES-DIVERSITY ; PLANT DIVERSITY ; CLIMATE-CHANGE ; BIOGEOGRAPHY ; FORESTS ; SPECIATION ; EXPANSION ; MODEL ; EXTINCTION ; DISPERSAL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404713
推荐引用方式 GB/T 7714	Bena, Maria J.,Baranzelli, Matias C.,Costas, Santiago M.,et al. Linking South American dry regions by the Gran Chaco: Insights from the evolutionary history and ecological diversification of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae)[J],2024,62(4):758-774.
APA	Bena, Maria J..,Baranzelli, Matias C..,Costas, Santiago M..,Cosacov, Andrea.,Acosta, Maria C..,...&Sersic, Alicia N..(2024).Linking South American dry regions by the Gran Chaco: Insights from the evolutionary history and ecological diversification of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION,62(4),758-774.
MLA	Bena, Maria J.,et al."Linking South American dry regions by the Gran Chaco: Insights from the evolutionary history and ecological diversification of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION 62.4(2024):758-774.