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Selection-driven chicken phenome and phenomenon of pectoral angle variation across different chicken phenotypes

Vakhrameev, Anatoly B., Narushin, Valeriy G., Larkina, Tatiana A., Barkova, Olga Y., Peglivanyan, Grigoriy K., Dysin, Artem P., Dementieva, Natalia V., Makarova, Alexandra V., Shcherbakov, Yuri S., Pozovnikova, Marina V., and others. (2022) Selection-driven chicken phenome and phenomenon of pectoral angle variation across different chicken phenotypes. Livestock Science, 264 . Article Number 105067. ISSN 1871-1413. (doi:10.1016/j.livsci.2022.105067) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:96967)

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An appreciation of the synergy between genome and phenome of poultry breed is essential for a complete understanding of their biology. Phenotypic traits are shaped under the influence of artificial, production-oriented, selection that often acts contrary to that which would occur during natural selection. In this comparative study, we analysed the phenotypic diversity of 39 chicken breeds and populations that make up a significant part of the world gene pool. Grouping patterns of breeds found within the traditional, phenotypic models of their classification/clustering required in-depth analysis using sophisticated mathematical approaches. As a result of studying performance and conformation phenotypes, a phenomenon of previously underestimated variability in pectoral angle (PA) was revealed. Moreover, patterns of PA relationship with productive traits were analysed. We propose using PA measurement as a promising new auxiliary index for selecting hens and roosters of breeding flocks in egg production improvement programs.

Item Type: Article
DOI/Identification number: 10.1016/j.livsci.2022.105067
Uncontrolled keywords: phenome; phenotypic traits; pectoral angle; egg production; chicken breeds; gene pool
Subjects: Q Science > QH Natural history
Q Science > QH Natural history > QH324.2 Computational biology
Q Science > QH Natural history > QH426 Genetics
Q Science > QH Natural history > QH75 Conservation (Biology)
S Agriculture > SF Animal culture
Divisions: Divisions > Division of Natural Sciences > Centre for Interdisciplinary Studies of Reproduction
Divisions > Division of Natural Sciences > Biosciences
Signature Themes: Food Systems, Natural Resources and Environment
Depositing User: Mike Romanov
Date Deposited: 17 Sep 2022 05:41 UTC
Last Modified: 08 Sep 2023 13:11 UTC
Resource URI: (The current URI for this page, for reference purposes)

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