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Código de barras de ADN para la delimitación de especies en roedores sigmodontinos (Cricetidae) del norte argentino, con especial énfasis en aquellas de las yungas

2021; SAREM; Volume: 28; Issue: 1 Linguagem: Inglês

10.31687/saremmn.21.28.1.0.22

1666-0536

Lautaro D. Andrade, Juan José Martínez, Rubén M. Bárquez, Eduardo Martín, Ignacio Ferro,

Evolution and Paleontology Studies

in North Argentina.We analyzed 162 individuals from 50 localities belonging to 31 species primarily determined by morphology.Most of the studied localities (72%) are from the Yungas forest while 71% of the analyzed species inhabit some of their altitudinal strata.We performed two species delimitation analyzes, the Bayesian Poisson Tree Processes (bPTP) method, and the Automated Barcode Gap Discovery (ABGD) method, the latter under two substitution models K2P and JC69.The bPTP method reported the presence of di erent lineages in some species totaling 44 species, 13 more than the 31 originally listed in our database.The ABGD method resulted in 40 species on average for all recursive partitions under the two substitution models.The following species presented more than one genetic lineage (putative species): Akodon budini, Akodon simulator, Akodon spegazzinii, Andinomys edax, Necromys lactens, Oligoryzomys chacoensis, Oligoryzomys avescens and Phyllotis tucumanus.Our results suggest that the diversity of sigmodontine rodents in northwestern Argentina is higher than the currently recognized, and highlight the need for more exhaustive faunal surveys which allows a more accurate biodiversity inventory.