Assesing among flocks genetic diversity in Istrian sheep to define framework for optimum contribution selection (CROSBI ID 731680)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Špehar, Marija ; Ramljak, Jelena ; Kasap, Ante
engleski
Assesing among flocks genetic diversity in Istrian sheep to define framework for optimum contribution selection
Long-term sustainability of economically important native breeds depends on sufficient genetic diversity necessary to cope with challenges in environment and breeding programs. The objective of this study was to analyse genetic diversity between and within flocks of Istrian sheep to define baseline population structure before implementation of optimum contribution selection. Altogether 719 animals from 12 flocks were genotyped with the Ovine SNP50 BeadChip. After quality control (SNP call rate > 0.9 and individual genotype call rate > 0.9, exclusion of sex-linked SNPs) 47, 793 SNPs were used for further analysis. The snpReady package in the R programming environment was used to calculate genomic population parameters. The average population expected heterozygosity (HE), observed heterozygosity (HO) and inbreeding coefficient (F) were 0.357, 0.332, and 0.07, respectively. The average pair-wise genetic differentiation between flocks was moderate (0.194) and ranged from 0.016 to 0.413. The first three PC explained 15.8%, 14.9%, and 10.6% of the variation in the population, showing three genetically disconnected clusters. These results indicate that the Istrian sheep has preserved genetic diversity for the implementation of optimum contribution selection.
Istrian sheep ; Genetic diversity ; SNPs
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Podaci o prilogu
30-30.
2022.
objavljeno
Podaci o matičnoj publikaciji
30th International Symposium Animal Science Days
Brajković, Vladimir ; Čubrić Čurik, Vlatka ; Čurik, Ino ; Držaić, Ivana ; Shihabi, Marioihabi, M.
Zagreb: Agronomski fakultet Sveučilišta u Zagrebu
978-953-8276-36-1
Podaci o skupu
30th International Symposium Animal Science Days (ASD 2022)
predavanje
21.09.2022-23.09.2022
Zadar, Hrvatska
Povezanost rada
Biotehnologija u biomedicini (prirodno područje, biomedicina i zdravstvo, biotehničko područje), Poljoprivreda (agronomija)