干旱区生态环境知识资源中心(Arid): Unravelling the genetic diversity and population dynamics of three Tacinga species (Cactaceae: Opuntioideae) in the Caatinga

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DOI	10.1093/botlinnean/boad054
	Unravelling the genetic diversity and population dynamics of three Tacinga species (Cactaceae: Opuntioideae) in the Caatinga
	Barrios-Leal, Dora Yovana; Menezes, Rodolpho S. T.; Zappi, Daniela; Manfrin, Maura Helena
通讯作者	Barrios-Leal, DY
来源期刊	BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4074
EISSN	1095-8339
出版年	2024
卷号	204 期号:3 页码:256-266
英文摘要	The Caatinga biogeographical region, located in the semi-arid region of northeastern Brazil, is characterized by high levels of cactus diversity and endemism. In this study, we investigated the genetic diversity, differentiation, and phylogeography of three Tacinga species (Tacinga inamoena, Tacinga subcylindrica, and Tacinga palmadora), which are endemic and widely distributed in the Caatinga. We collected 222 samples from 108 locations and used plastid (3MODIFIER LETTER PRIMErps16-5MODIFIER LETTER PRIMEtrnK, PsbE-PetL) and nuclear (PhyC) molecular markers for a multilocus approach. Our results suggest that diversification of the three Tacinga species occurred during the middle Pleistocene, with the Southern Sertaneja Depression ecoregion of the Caatinga being identified as the ancestral area. Interestingly, analyses of genetic structure did not show any evidence that the major river in the region (the Sao Francisco River) and the Caatinga ecoregions acted as biogeographical barriers for gene flow in these species. This suggests that the three Tacinga species exhibited different responses to widely accepted geographical and geomorphological barriers known to affect other taxonomic groups in the Caatinga. Overall, our findings provide new insights into the biogeographical history of the Caatinga and the factors that have shaped diversification and genetic structure of species in this region. Our study underlines the importance of considering the unique natural history and biological characteristics of individual taxonomic groups when investigating the biogeography of the Caatinga.
英文关键词	endemic genetic diversity molecular markers Brazil biogeography Phylogeography
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001080271300001
WOS关键词	ATLANTIC FOREST ; DIVERSIFICATION ; BRAZIL ; PHYLOGEOGRAPHY ; MODELS ; BIOGEOGRAPHY ; CHLOROPLAST ; LEGUMINOSAE ; CONNECTIONS ; ADDITIONS
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/2XILL650/403067
推荐引用方式 GB/T 7714	Barrios-Leal, Dora Yovana,Menezes, Rodolpho S. T.,Zappi, Daniela,et al. Unravelling the genetic diversity and population dynamics of three Tacinga species (Cactaceae: Opuntioideae) in the Caatinga[J],2024,204(3):256-266.
APA	Barrios-Leal, Dora Yovana,Menezes, Rodolpho S. T.,Zappi, Daniela,&Manfrin, Maura Helena.(2024).Unravelling the genetic diversity and population dynamics of three Tacinga species (Cactaceae: Opuntioideae) in the Caatinga.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,204(3),256-266.
MLA	Barrios-Leal, Dora Yovana,et al."Unravelling the genetic diversity and population dynamics of three Tacinga species (Cactaceae: Opuntioideae) in the Caatinga".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 204.3(2024):256-266.