Suri and huacaya alpaca breeding results in North America

The segregation of suri and huacaya fleece types in alpacas in the United States deviates from that expected from results of previously published studies from other regions. Suri × suri matings produced 278 huacaya and 1702 suri offspring. Suri × huacaya matings produced 89 huacaya and 56 suri offsp...

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Bibliographic Details
Published in:Small ruminant research 2010-10, Vol.93 (2), p.210-212
Main Author: Sponenberg, D. Phillip
Format: Article
Language:English
Subjects:
Alpaca
alpacas
breed differences
breeds
crossbreds
crossing
dominant genes
Fleece
Genetics
Huacaya
Huacaya (alpaca breed)
phenotype
Suri
Suri (alpaca breed)
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Summary:The segregation of suri and huacaya fleece types in alpacas in the United States deviates from that expected from results of previously published studies from other regions. Suri × suri matings produced 278 huacaya and 1702 suri offspring. Suri × huacaya matings produced 89 huacaya and 56 suri offspring. Huacaya × huacaya matings produced 19,633 huacaya and 4 suri offspring. No linkage or other influence of sex was noted. These results are consistent with a single autosomal dominant gene controlling suri fleece production, with an additional relatively common genetic mechanism that can suppress the suri phenotype in some animals. These results are especially important in cases where the two fleece types are crossed with one another, as they result in a relative underproduction of suri fleeces.
ISSN:0921-4488
1879-0941
DOI:10.1016/j.smallrumres.2010.05.004