MtDNA diversity and genetic lineages of four cattle breeds in Malaysia

Aslinda K., . and Ruzainah A., . and Md Tasol S., . and Fadzlirahimi I., . and Somarny W. W. M. Z., . and Amie Marini A.B., . and Mohd. Hafiz A. W., . and Siti Azizah M. N., . MtDNA diversity and genetic lineages of four cattle breeds in Malaysia. pp. 23-33. ISSN 1394-3227

There is lack of comprehensive studies on the genetic diversity or phylogenetic analysis of beef cattle breeds in Malaysia. In this study the partial sequence of mitochondrial DNA cytochrome b gene (cyt b) was analysed from blood samples obtained from 25 Chinese Yellow Cattle (CY) 33 Kedah-Kelantan (KK) 32 Brakmas (BM) and 30 Bali cattle (BC). Based on these 120 individuals 19 mtDNA haplotypes (GenBank Accession No. GU67340 - GU67358) were identified by polymorphisms at 31 sites. Hap19 was predominant in BM (78) KK (82) and CY (100) indicating similar origin or gene flow between breeds whilst Hap11 was exclusively for BC. However there were only two nucleotide differences between these two major haplotypes. These results can be interpreted that these representative cattle in these haplotypes are admixtures of B. indicus or B. javanicus through maternal ancestry. Conversely the CY cattle investigated are highly inbred where no variation could be observed in the short segment investigated.

Full text available from: Official URL: http://www.msap.my/pdf/mjas_18_1/2%20WanSomarny.pd...

Abstract

There is lack of comprehensive studies on the genetic diversity or phylogenetic analysis of beef cattle breeds in Malaysia. In this study the partial sequence of mitochondrial DNA cytochrome b gene (cyt b) was analysed from blood samples obtained from 25 Chinese Yellow Cattle (CY) 33 Kedah-Kelantan (KK) 32 Brakmas (BM) and 30 Bali cattle (BC). Based on these 120 individuals 19 mtDNA haplotypes (GenBank Accession No. GU67340 - GU67358) were identified by polymorphisms at 31 sites. Hap19 was predominant in BM (78) KK (82) and CY (100) indicating similar origin or gene flow between breeds whilst Hap11 was exclusively for BC. However there were only two nucleotide differences between these two major haplotypes. These results can be interpreted that these representative cattle in these haplotypes are admixtures of B. indicus or B. javanicus through maternal ancestry. Conversely the CY cattle investigated are highly inbred where no variation could be observed in the short segment investigated.

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Item Type:	Article
AGROVOC Term:	Genetic diversity within species
AGROVOC Term:	Cattle
AGROVOC Term:	Animal breeding
AGROVOC Term:	Mitochondria
AGROVOC Term:	Nucleotides
AGROVOC Term:	Ancestry
AGROVOC Term:	Inbred lines
AGROVOC Term:	Blood sampling
AGROVOC Term:	Heparin
AGROVOC Term:	Pastures
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	26 Apr 2025 15:42
URI:	http://webagris.upm.edu.my/id/eprint/21872

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