干旱区生态环境知识资源中心(Arid): Niche conservatism, divergence and polyploidy in Senna series Aphyllae (Fabaceae: Caesalpinioideae) from arid zones of South America

Arid

DOI	10.1093/botlinnean/boab105
	Niche conservatism, divergence and polyploidy in Senna series Aphyllae (Fabaceae: Caesalpinioideae) from arid zones of South America
	Robbiati, Federico O.; Moro Cordobes, Fernando; Fortunato, Renee H.; Anton, Ana M.; Urdampilleta, Juan D.
通讯作者	Robbiati, FO
来源期刊	BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4074
EISSN	1095-8339
出版年	2022
卷号	199 期号:4 页码:773-789
英文摘要	This paper aims to integrate cytogenetic and ecological approaches into a phylogenetic framework to better understand the evolution and systematics of Senna series Aphyllae, an endemic group of arid and semi-arid regions of South America. We counted the chromosome numbers at the population level in three species of series Aphyllae using a conventional technique (GIEMSA) and in situ hybridization (FISH). Phylogenetic reconstructions and inference of chromosome evolution were based on four plastid DNA regions and one nuclear marker. A principal component analysis was carried out using environmental data. Finally, ecological niche models (ENM) were implemented: (1) to identify the abiotic factors that constraint the potential geographical distribution of series Aphyllae and (2) to understand the ecological drivers for species diversification. The basic chromosome number is x = 12. Senna aphylla showed three cytotypes with (2n = 24, 48 and 60) and S. pachyrrhiza has two cytotypes (2n = 24 and 48). Senna crassiramea appeared to be polyploid with 2n = 48. In diploid S. pachyrrhiza, two 45S and three 5S rDNA sites were reported. In tetraploid S. crassiramea, four 45S and four 5S rDNA sites were detected. The ENM and ecological speciation tests suggest that in series Aphyllae speciation was sometimes associated with conservatism and sometimes with niche divergence. Our results contribute to the evolutionary knowledge of Neotropical legumes and understanding of drivers of diversification in arid regions in South America.
英文关键词	cytogenetics ecological niche phylogenetics polyploidy
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000764224300001
WOS关键词	MAXIMUM-LIKELIHOOD ; GRASSES POACEAE ; LEGUMINOSAE ; SPECIATION ; DIVERSIFICATION ; EVOLUTION ; DESERT ; ORIGIN ; RDNA ; FISH
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/2XILL650/392024
推荐引用方式 GB/T 7714	Robbiati, Federico O.,Moro Cordobes, Fernando,Fortunato, Renee H.,et al. Niche conservatism, divergence and polyploidy in Senna series Aphyllae (Fabaceae: Caesalpinioideae) from arid zones of South America[J],2022,199(4):773-789.
APA	Robbiati, Federico O.,Moro Cordobes, Fernando,Fortunato, Renee H.,Anton, Ana M.,&Urdampilleta, Juan D..(2022).Niche conservatism, divergence and polyploidy in Senna series Aphyllae (Fabaceae: Caesalpinioideae) from arid zones of South America.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,199(4),773-789.
MLA	Robbiati, Federico O.,et al."Niche conservatism, divergence and polyploidy in Senna series Aphyllae (Fabaceae: Caesalpinioideae) from arid zones of South America".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 199.4(2022):773-789.