Bovine landscape genetics in Brazil

ABSTRACT The aim of this study was to explore spatial genetic structure patterns in cattle breeds adapted to local conditions in Brazil. We georeferenced 876 animals of ten breeds raised in Brazil kept in the Genebank of Brazilian Agricultural Research Corporation (Embrapa) by sample locations using...

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Bibliographic Details
Published in:Scientia agricola 2022-01, Vol.79 (1)
Main Authors: Souza, Ana Clara Barbosa de, Egito, Andréa Alves do, Peripolli, Vanessa, McManus, Concepta Margaret
Format: Article
Language:English
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
cattle
genetic landscape shape
georeference
spatial correlation
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Summary:ABSTRACT The aim of this study was to explore spatial genetic structure patterns in cattle breeds adapted to local conditions in Brazil. We georeferenced 876 animals of ten breeds raised in Brazil kept in the Genebank of Brazilian Agricultural Research Corporation (Embrapa) by sample locations using the QGIS 2.4.0 software. The Mantel tests, spatial autocorrelation, and Monmonier tests were performed. The distances for spatial correlation tests ranged from 5 to 15 classes. The results indicated genetic discontinuities in cattle breeds from the Midwest, South, and Southeast of the country. Correlation between genetic and geographic distance was low, but significant. The Monmonier Maximum Distance Algorithm indicated an initial subdivision of Curraleiro and then Pantaneiro from the other breeds. In another subdivision, Criollo, Mocho Nacional, and Caracu were grouped. Genetic discontinuity was observed beyond 431 km, the minimum sampling distance between populations for conservation purposes.
ISSN:1678-992X
1678-992X
DOI:10.1590/1678-992x-2020-0142