Microsatellite-Based Genetic Characterization of the Indigenous Katjang Goat in Peninsular Malaysia

Abstract

The Katjang goat is the only indigenous domestic goat breed in Malaysia. Following a national baseline survey from 2001 to 2002, this breed was reported to the FAO as being at risk of extinction. In this study, 36 microsatellite markers were screened, and 25 polymorphic markers were used to analyze the genetic structure of the Katjang goat breed in Peninsular Malaysia. A sample set of data derived from another 10 populations from three published research studies was used as an outgroup for an inter-population genetic study. The analysis showed that the mean value of the observed heterozygosity was 0.29 ± 0.14, and the expected heterozygosity was 0.72 ± 0.14, which indicated low genetic diversity. The inbreeding coefficient, FIS, was high, at 0.46. Significant (p < 0.01) deviations from the Hardy Weinberg equilibrium were noted for all loci. The bottleneck analysis using the Wilcoxon Rank test under the two-phase model of mutation was significant (p < 0.01) for heterozygosity excess, which suggested that the Katjang breed had undergone significant population reduction in the past. Through combined analysis of data from publicly available research, almost the entire population of Katjang goats represent the centroid and are grouped together on a multidimensional scaling plot, except for the Terengganu population. Network analysis revealed that the goat population from Pahang formed the centrality of the network.

Analysis of Genetic Diversity in Romanian Carpatina Goats Using SNP Genotyping Data

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Physiological, haematological and electroencephalographic responses to heat stress in Katjang and Boer goats

“…In this study, the Boer goats had higher RT than their Katjang counterparts. Katjang is considered an indigenous breed of Malaysia ( Devendra, 1987 ) and can withstand the local climatic conditions ( Ernie Muneerah et al, 2021 ). Indigenous breeds thrived well in poor forage and stressful situations compared to imported and crossbred animals (Akinyi, 2008).…”

Genetic structure of reconstituted native Carpathian goat breed based on information from microsatellite markers

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