干旱区生态环境知识资源中心(Arid): DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and Andean areas in Argentina

Arid

DOI	10.1111/1755-0998.13603
	DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and Andean areas in Argentina
	Alejandra Ojeda, Agustina; Novillo, Agustina; Lanzone, Cecilia; Daniela Rodriguez, Maria; Fernanda Cuevas, Maria; Pablo Jayat, Jorge; Teta, Pablo; Alberto Ojeda, Ricardo; Borisenko, Alex
通讯作者	Ojeda, AA
来源期刊	MOLECULAR ECOLOGY RESOURCES
ISSN	1755-098X
EISSN	1755-0998
出版年	2022
卷号	22 期号:6 页码:2349-2362
英文摘要	Rodents are an important component of South America fauna. Their high diversity has motivated researchers to continually review their taxonomy, genetic diversity, species limits, and phylogenetic relationships. Here, we applied DNA-barcodes for assessing the taxonomic and genetic diversity in the two major lineages of South American rodents: caviomorphs and sigmodontines. We analysed 335 COI barcodes in 34 morphologically determined species from 39 localities along central Andes and arid lands of Argentina. Neighbour-joining and maximum likelihood reconstruction provided clear separation between species. The Barcode Index number and Bayesian Poisson tree processes were used to confirm concordance between sequence clusters and species designations by taxonomy. We found deep divergence within the Phyllotis xanthopygus species complex, with distances up to 13.0% between geographically separated lineages. Minor divergences (3.30% and 2.52%) were found within Abrothrix hirta, and Tympanoctomys barrerae, respectively, with differentiation in their genetic lineages. Also, we documented geographically separated clusters for Akodon spegazzinii and A. oenos with up to 2.3% divergence, but clustering methods failed to distinguish them as different species. Sequence results show a clear barcode gap with a mean intraspecific divergence (0.56%) versus a minimum nearest-neighbour distance averaging (10.1%). Distances between congeneric species varied from 4.1 to 14%, with the exception of two related forms within Euneomys and the sister species Akodon spegazzinii and A. oenos. This study constitutes a substantial contribution to the global barcode reference library. It provides insights into the complex phylogeographic patterns and speciation scenarios in rodents, while highlighting areas that require in-depth taxonomic and integrative research.
英文关键词	Caviomorpha COI DNA barcoding Sigmodontinae South America species identification
类型	Article
语种	英语
开放获取类型	Green Published, Bronze
收录类别	SCI-E
WOS记录号	WOS:000765787200001
WOS关键词	SPECIES DELIMITATION ; CRICETIDAE ; SIGMODONTINAE ; DIVERSIFICATION ; DISCOVERY ; PHYLOGEOGRAPHY ; SYSTEMATICS ; TAXONOMY ; INSIGHTS ; LIMITS
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393811
推荐引用方式 GB/T 7714	Alejandra Ojeda, Agustina,Novillo, Agustina,Lanzone, Cecilia,et al. DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and Andean areas in Argentina[J],2022,22(6):2349-2362.
APA	Alejandra Ojeda, Agustina.,Novillo, Agustina.,Lanzone, Cecilia.,Daniela Rodriguez, Maria.,Fernanda Cuevas, Maria.,...&Borisenko, Alex.(2022).DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and Andean areas in Argentina.MOLECULAR ECOLOGY RESOURCES,22(6),2349-2362.
MLA	Alejandra Ojeda, Agustina,et al."DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and Andean areas in Argentina".MOLECULAR ECOLOGY RESOURCES 22.6(2022):2349-2362.