Suri/Huacaya phenotype inheritance in alpaca (Vicugna pacos)

C. Renieri; A. Valbonesi; M. Antonini; V. La Manna; T. Huanca; N. Apaza; S. Presciuttini; M. Asparrin

Suri/Huacaya phenotype inheritance in alpaca (Vicugna pacos)

In: Fibre production in South American camelids and other fibre animals

Authors:

C. Renieri

C. Renieri ¹School of Environmental Sciences, University of Camerino, Via Gentile III da Varano s.n.c., 62032 Camerino, Italy
carlo.renieri@unicam.it

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A. Valbonesi

A. Valbonesi ¹School of Environmental Sciences, University of Camerino, Via Gentile III da Varano s.n.c., 62032 Camerino, Italy

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M. Antonini

M. Antonini ¹School of Environmental Sciences, University of Camerino, Via Gentile III da Varano s.n.c., 62032 Camerino, Italy

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V. La Manna

V. La Manna ¹School of Environmental Sciences, University of Camerino, Via Gentile III da Varano s.n.c., 62032 Camerino, Italy

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T. Huanca

T. Huanca ²INIA, ILLPA Puno, Rinconada Salcedo, Puno, Peru

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N. Apaza

N. Apaza ²INIA, ILLPA Puno, Rinconada Salcedo, Puno, Peru

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S. Presciuttini

S. Presciuttini ³Department of Physiological Sciences, University of Pisa, Via San Zeno 31, 56123 Pisa, Italy

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, and

M. Asparrin

M. Asparrin ³Michell y CIA S.A., Fundo Mallkini, Peru

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Type:: Chapter

Pages:: 25–34

DOI:: https://doi.org/10.3920/9789086867271_003

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The Suri/Huacaya phenotype inheritance in alpaca was tested on two independent Peruvian sources of records: the Registry of Mallkini farm (588 offspring by Suri sire × Suri dam from 62 paternal half sib families, and 2,126 offspring by Huacaya sire × Huacaya dam from 177 paternal half sib families) and the results of the Quimsachata INIA ILPA Puno experimental trial (two reciprocal experimental test-crosses, involving a total of 17 unrelated males and 149 unrelated females). The data support a genetic model in which two linked loci must simultaneously be homozygous for recessive alleles in order to produce the Huacaya phenotype. The estimated recombination rate between these loci was 0.099 (95% C.L. = 0.029-0.204). The birth of 3 Suri offspring from Huacaya x Huacaya mating is explained by a new dominant mutation on some germinal lines of Huacaya animals. The direct mutation rate can be estimated at 0.0014.

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Fibre production in South American camelids and other fibre animals

E-Book ISBN:: 9789086867271

Publisher:: Wageningen Academic

Print Publication Date:: 30 Oct 2011

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Suri/Huacaya phenotype inheritance in alpaca (Vicugna pacos)

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Fibre production in South American camelids and other fibre animals

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