Browse > Article
http://dx.doi.org/10.5713/ajas.2002.321

Variations in Karyotypic Characteristics of Different Breed Groups of Water Buffaloes (Bubalus bubalis)  

Bondoc, O.L. (Animal Breeding Division, Institute of Animal Science, College of Agriculture)
Flor, M.C.G.T. (Animal Breeding Division, Institute of Animal Science, College of Agriculture)
Rebollos, S.D.N. (Animal Breeding Division, Institute of Animal Science, College of Agriculture)
Albarace, A.G. (Animal Breeding Division, Institute of Animal Science, College of Agriculture)
Publication Information
Asian-Australasian Journal of Animal Sciences / v.15, no.3, 2002 , pp. 321-325 More about this Journal
Abstract
Karyotype analysis was carried out on blood samples of 30 water buffaloes belonging to different breed groups (i.e. Philippine Carabao (PC), Indian Murrah (IM), Bulgarian Murrah (BM), "$F_1$ 50% IM-50% PC", "$F_1$ 50% BM-50% PC" and "75% IM-25% PC"), using the modified Leucocyte Culture Technique. The modal chromosome numbers of the PC, "$F_1$ 50% IM-50% PC", "$F_1$ 50% BM-50% PC", IM, BM and "75% IM-25% PC" were 2n=48, 49, 49, 50, 50 and 50, respectively. The water buffalo chromosomes are mostly acrocentric (79.67%) and the remainder submetacentric (20.33%). Results of the ordinary least square analysis showed significant breed effects (p<0.01) on other karyotypic characteristics (i.e. relative length, arm ratio and centromeric index). Significant correlation between karyotypic characteristics and some animal performance traits were also found. The significant correlation values imply that karyotypic characteristics can be used as important criteria to select potentially productive young water buffaloes. In the future, more production and reproduction traits from non-institutional herds should be included in the analysis to reveal meaningful correlations with various karyotypic characteristics.
Keywords
Water Buffaloes (Bubalus bubalis); Karyotype; Chromosome Number; Relative Length; Centromeric Index; Arm Ratio;
Citations & Related Records

Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Azmi, T. J., Z. A. Jelan and M. Harisah. 1990. Chromosome makeup and production traits in crossbred buffaloes. Seminar on Buffalo Genotypes for Small Farms in Asia (Ed. M. K. Vidyadaran, T. J. Azmi and P. K. Basrur). Sponsored by Centre for Tropical Animal Production and Disease Studies, Universiti Pertanian Malaysia and International Development Centre (Canada). pp. 179-184.
2 Cooper, D. W. 1991. Cytogenetic aspects of crossbreeding river and swamp buffalo. In: Buffalo and Goats in Asia. Genetic Diversity and Its Application. Proceedings of a workshop, Kuala Lumpur, Malaysia. 10-14 February 1991. (Ed. N. M. Tulloh). ACIAR Proceedings No. 34. pp. 48-52.
3 Majid, M. A., Z. M. Nava, B. A. Parker, V. G. Momoñgan and M. N. Islam Faridi. 1991. Chromosomal analysis of buffalo (Bubalus bubalis): swamp type (Philippine carabao) and river types (Murrah and Nili Ravi) and their crosses ($F_1$ and $F_2$). Philippine Agriculturist. 74:543-556.
4 Bongso, T. A., Z. M. Nava, P. G. Duran, V. G. Momongan, F. Campos and S. K. Ranjhan. 1984. Segregation of mitotic chromosomes in river, swamp and crossbred buffaloes (Bubalus bubalis). Tropical Veterinarian. 2:177-182.
5 Songsri, S. and D. A. Ramirez. 1979. The cytology of swamp and river type of water buffaloes and their hybrids. Philippine Agriculturist. 62:262-275.
6 Parker, B. A. 1992. Genetic improvement. In: Carabao Production in the Philippines (Ed. S. K. Ranjhan and P. S. Faylon). PCARRD and FAO/UNDP. Los Banos, Laguna, Philippines. pp. 25-62.
7 Bongso, T. A. and M. Hilmi. 1982. Chromosome banding homologies of a tandem fusion in river, swamp and crossbred buffaloes (Bubalus bubalis). Can. J. Genet. Cytol. 24:667-673.   DOI
8 Fischer, H. and F. Ulbrich. 1968. Chromosome of the Murrah buffalo and its crossbreds with the Asiatic swamp buffalo (Bubalus bubalis). Z. Tierz. Zuchtungsbiol. 84:110-114.
9 Na-Chaingmai, A. and V. Chavananikul. 1998. Performance and cytogenetic aspects of swamp $\times$ river crossbred buffaloes. Proc. 5th World Congress on Genetics Applied to Livestock Production. University of New England, Armidale, NSW, Australia. 24:451-458.