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. 2022 Feb 2;12(3):364.
doi: 10.3390/ani12030364.

Carcass Quality Profiles and Associated Genomic Regions of South African Goat Populations Investigated Using Goat SNP50K Genotypes

Keabetswe Tebogo Ncube  1   2 , Edgar Farai Dzomba  2 , Khanyisile Hadebe  1 , Pranisha Soma  3 , Lorinda Frylinck  3 , Farai Catherine Muchadeyi  1
Affiliations

Carcass Quality Profiles and Associated Genomic Regions of South African Goat Populations Investigated Using Goat SNP50K Genotypes

Keabetswe Tebogo Ncube et al. Animals (Basel). .

Abstract

Carcass quality includes a battery of essential economic meat traits that play a significant role in influencing farmer breed preferences. A preliminary study was undertaken to investigate the carcass quality and the associated genomic regions in a small nucleus of animals that are representative of South African goat genetic resources. Samples of the South African Boer (n = 14), Northern Cape Speckled (n = 14), Eastern Cape Xhosa Lob ear (n = 12), Nguni/Mbuzi (n = 13), and Village (n = 20) were genotyped using the Illumina goat SNP50K and were phenotyped for carcass quality traits. SA Boer goats had heavier warm and cold carcass weights (17.2 ± 2.3 kg and 16.3 ± 2.3 kg). Pella village goats raised under an intensive system had significantly (p < 0.05) heavier warm and cold carcass weights (9.9 ± 1.1 kg and 9.2 ± 1.2 kg) compared to the village goats that are raised extensively (9.1 ± 2.0 kg and 8.4 ± 1.9). A total of 40 SNPs located on chromosomes 6, 10, 12, 13, 19, and 21 were significantly associated with carcass traits at (-log10 [p < 0.05]). Candidate genes that were associated with carcass characteristics (GADD45G, IGF2R, GAS1, VAV3, CAPN8, CAPN7, CAPN2, GHSR, COLQ, MRAS, and POU1F1) were also observed. Results from this study will inform larger future studies that will ultimately find use in breed improvement programs.

Keywords: GWAS; SNP50K; candidate genes; carcass quality; goat ecotypes; goats.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Principal component analysis of the South African indigenous goat populations [13].
Figure 2
Figure 2
Manhattan plots of the GWAS for carcass quality traits in the South African indigenous goat populations. In the Manhattan plots, Bonferroni adjusted −log10 p-values of the quantified SNPs were plotted against their genomic positions; different colours indicate SNPs on different chromosomes from chromosome 1 to 29. WS = slaughter weight, WCW = warm carcass weight, CCW = cold carcass weight, FC = fat code, and CL = chilling loss.
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References

    1. Mazhangara I.R., Chivandi E., Mupangwa J.F., Muchenje V. The potential of goat meat in the red meat industry. Sustainability. 2019;11:3671. doi: 10.3390/su11133671. - DOI
    1. Lehohla P. Community Survey Agricultural Households. Statistics South Africa; Pretoria, South Africa: 2016.
    1. Dzomba E.F., Mdladla K., Ncube K.T., Muchadeyi F.C. Genomics for the Improvement of Productivity and Robustness of South African Goat Breeds. Springer; Berlin/Heidelberg, Germany: 2018.
    1. Morokolo B. A Profile of the South African Goat Market Value Chain. Directorate Marketing Private Bag X 15 ARCADIA; South Africa: 2011. pp. 1–37.
    1. Webb E.C. Goat meat production, composition, and quality. Anim. Front. 2014;4:33–37. doi: 10.2527/af.2014-0031. - DOI

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