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Genet Res. 2002 Aug;80(1):55-62.

Inheritance of litter size at birth in the Brazilian grass mouse (Akodon cursor, Sigmodontinae, Rodentia).

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  • 1Institute of Cytology and Genetics, Russian Academy of Science, 630090 Novosibirsk, Russia.

Abstract

By means of complex segregation analysis we studied the inheritance of litter size in two large pedigrees of captive-bred colonies of the Brazilian grass mouse Akodon cursor. Genetic analysis has revealed a highly significant influence of genetic factors on the variation of litter size (heritability, h2, was estimated as 0.44). The inheritance followed the classical polygene model: neither the major-gene model nor the polygene with unequal contribution model described the data significantly better.

PMID:
12448858
[PubMed - indexed for MEDLINE]
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