Association Analysis Between Microsatellite Dna Markers and Milk Yield and Its Components in Egyptian Buffaloes Using a Random Regression Model

Mekkawy, Wagdy; Hafez, Y. M.; Attia, Mahmoud; Abdel-Salam, Sameh; Bakr, Samy Abo

doi:10.21608/ejap.2012.94341

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…The neutrality, co-dominant inheritance and high polymorphic information content of microsatellite markers have rendered them as the markers of choice for diversity studies (Metta et al, 2004;Li et al, 2005;Yoon et al, 2005;Sodhi et al, 2005;Kumar et al, 2006;Pandey et al, 2006aPandey et al, , 2006bVijh et al, 2008;Sharma et al, 2013). Several genetic diversity studies of water buffalo populations have been carried out throughout the world using microsatellite markers (Kataria et al, 2009;Ángel-Marín et al, 2010;Gargani et al, 2010;Mekkawy et al, 2012;Özkan Ünal et al, 2014;Vohra et al, 2017;Khade et al, 2019).…”

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confidence: 99%

Morphometric and microsatellite-based comparative genetic diversity analysis inBubalus bubalisfrom North India

Vohra

Singh

Chhotaray

et al. 2021

PeerJ

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To understand the similarities and dissimilarities of a breed structure among different buffalo breeds of North India, it is essential to capture their morphometric variation, genetic diversity, and effective population size. In the present study, diversity among three important breeds, namely, Murrah, Nili-Ravi and Gojri were studied using a parallel approach of morphometric characterization and molecular diversity. Morphology was characterized using 13 biometric traits, and molecular diversity through a panel of 22 microsatellite DNA markers recommended by FAO, Advisory Group on Animal Genetic Diversity, for diversity studies in buffaloes. Canonical discriminate analysis of biometric traits revealed different clusters suggesting distinct genetic entities among the three studied populations. Analysis of molecular variance revealed 81.8% of genetic variance was found within breeds, while 18.2% of the genetic variation was found between breeds. Effective population sizes estimated based on linkage disequilibrium were 142, 75 and 556 in Gojri, Nili-Ravi and Murrah populations, respectively, indicated the presence of sufficient genetic variation and absence of intense selection among three breeds. The Bayesian approach of STRUCTURE analysis (at K = 3) assigned all populations into three clusters with a degree of genetic admixture in the Murrah and Nili-Ravi buffalo populations. Admixture analysis reveals introgression among Murrah and Nili-Ravi breeds while identified the Gojri as unique buffalo germplasm, indicating that there might be a common origin of Murrah and Nili-Ravi buffaloes. The study provides important insights on buffalo breeds of North India that could be utilized in designing an effective breeding strategy, with an appropriate choice of breeds for upgrading local non-descript buffaloes along with conservation of unique germplasm.

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Section: Introductionmentioning

confidence: 99%

Morphometric and microsatellite-based comparative genetic diversity analysis inBubalus bubalisfrom North India

Vohra

Singh

Chhotaray

et al. 2021

PeerJ

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Exploration of allelic variants in short tandem repeats (STRs) flanking milk production QTLs and their association with milk production traits in Indian water buffaloes

Vani

Kumar

et al. 2022

Trop Anim Health Prod

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Association between microsatellite markers and milk production traits in Egyptian buffaloes

Rushdi¹,

Moghaieb²,

Abdel-Shafy³

et al. 2017

CZECH J ANIM SCI

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Rushdi H.E., Moghaieb R.E.A., Abdel-Shafy H., Ibrahim M. A.M. (2017): Association between microsatellite markers and milk production traits in Egyptian buffaloes. Czech J. Anim. Sci, 62, 384-391.The objectives were to evaluate polymorphism in ten microsatellite markers and to demonstrate their association with milk production traits in the Egyptian buffaloes, based on the cross-species transferability of microsatellites from cattle to buffalo. A total of 17 439 daily milk records from the first five lactations were subjected to analyses, in which records from 5 to 290 days in milk were only included. The analysis revealed that eight out of the ten bovine markers analyzed were polymorphic. The means of the number of alleles, effective number of alleles, and fixation index within markers were 4.125, 2.479, and 0.062, respectively. The means of the observed and expected heterozygosity were 0.491 and 0.527 per marker, respectively. The eight polymorphic microsatellites (BM1706, BMS711, BM143, BM415, BM6438, ETH131, BM1443, ETH2) showed significant (P < 0.001) associations with average daily milk yield deviation. Protein percentage was significantly associated with microsatellites BM6438 (P < 0.01) and ETH131 (P < 0.001). Only marker BM415 had a significant (P < 0.05) influence on protein yield. None of the analyzed markers revealed significant effect on fat yield and percentage. The results obtained support future application of the polymorphic microsatellites for detailed studies of the Egyptian buffalo genome.

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Association Analysis Between Microsatellite Dna Markers and Milk Yield and Its Components in Egyptian Buffaloes Using a Random Regression Model

Cited by 6 publications

References 19 publications

Morphometric and microsatellite-based comparative genetic diversity analysis inBubalus bubalisfrom North India

Morphometric and microsatellite-based comparative genetic diversity analysis inBubalus bubalisfrom North India

Exploration of allelic variants in short tandem repeats (STRs) flanking milk production QTLs and their association with milk production traits in Indian water buffaloes

Association between microsatellite markers and milk production traits in Egyptian buffaloes

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