Genetic diversity, admixture and the effect of inbreeding on milk performance in two autochthonous goat breeds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F20%3AN0000081" target="_blank" >RIV/00027014:_____/20:N0000081 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/20:81964

Výsledek na webu

<a href="https://vuzv.cz/_privat/20078.pdf" target="_blank" >https://vuzv.cz/_privat/20078.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.livsci.2020.104163" target="_blank" >10.1016/j.livsci.2020.104163</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Genetic diversity, admixture and the effect of inbreeding on milk performance in two autochthonous goat breeds

Popis výsledku v původním jazyce

For the development of an appropriate program for the conservation of animal genetic resources, careful evaluation of the current genetic diversity in endangered breeds was performed. Pedigree data from a total of 38,288 animals registered in studbooks between 1970 and 2017 from two autochthonous Czech goat breeds, White and Brown Shorthair goats, were analysed to identify factors that may have affected the genetic variability of the breeds. Because the populations of both breeds are closed, there is concern about the loss of genetic variation. The average numbers of equivalent complete generations were 10 and 11 for White Shorthair goat and Bowen Shorthair goat, respectively. The effective numbers of founders contributing to the current genetic pool were 323 and 45, and the effective numbers of ancestors were 90 and 24, respectively. The average inbreeding and relatedness coefficients for the reference populations of the two breeds were 2% and 5.3%, respectively, for White Shorthair goats and 3.7 and 11.5% for Brown Shorthair goats. The corresponding estimates of the effective population size based on an increase in inbreeding or coancestry were 244 and 311, respectively, for White Shorthair goats and 82 and 87 for Brown Shorthair goats. Three kinds of inbreeding coefficients, the classical inbreeding coefficient, the new inbreeding coefficient and the ancestral inbreeding coefficient, were used to quantify the effects of inbreeding and purging on milk production in both analysed breeds. All tested inbreeding coefficients (FX, Fnew) showed a significantly negative influence on milk performance in the White Shorthair goat breed. The purging effect was confirmed based on the difference between FX and Fnew in White Shorthair goats and on the suitability of the statistical model in Brown Shorthair goats.

Název v anglickém jazyce

Genetic diversity, admixture and the effect of inbreeding on milk performance in two autochthonous goat breeds

Popis výsledku anglicky

For the development of an appropriate program for the conservation of animal genetic resources, careful evaluation of the current genetic diversity in endangered breeds was performed. Pedigree data from a total of 38,288 animals registered in studbooks between 1970 and 2017 from two autochthonous Czech goat breeds, White and Brown Shorthair goats, were analysed to identify factors that may have affected the genetic variability of the breeds. Because the populations of both breeds are closed, there is concern about the loss of genetic variation. The average numbers of equivalent complete generations were 10 and 11 for White Shorthair goat and Bowen Shorthair goat, respectively. The effective numbers of founders contributing to the current genetic pool were 323 and 45, and the effective numbers of ancestors were 90 and 24, respectively. The average inbreeding and relatedness coefficients for the reference populations of the two breeds were 2% and 5.3%, respectively, for White Shorthair goats and 3.7 and 11.5% for Brown Shorthair goats. The corresponding estimates of the effective population size based on an increase in inbreeding or coancestry were 244 and 311, respectively, for White Shorthair goats and 82 and 87 for Brown Shorthair goats. Three kinds of inbreeding coefficients, the classical inbreeding coefficient, the new inbreeding coefficient and the ancestral inbreeding coefficient, were used to quantify the effects of inbreeding and purging on milk production in both analysed breeds. All tested inbreeding coefficients (FX, Fnew) showed a significantly negative influence on milk performance in the White Shorthair goat breed. The purging effect was confirmed based on the difference between FX and Fnew in White Shorthair goats and on the suitability of the statistical model in Brown Shorthair goats.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40203 - Husbandry

Projekt

<a href="/cs/project/QK1910156" target="_blank" >QK1910156: Nové postupy pro záchranu ohrožených populací hospodářských zvířat</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Livestock Science

ISSN

1871-1413

e-ISSN

—

Svazek periodika

240

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

Article number 104163

Kód UT WoS článku

000582527300019

EID výsledku v databázi Scopus

2-s2.0-85087504320