CHROMOSOME BANDING HOMOLOGIES OF A TANDEM FUSION IN RIVER, SWAMP, AND CROSSBRED BUFFALOES (<i>BUBALUS BUBALIS</i>)

Bongso, T. A.; Hilmi, M.

doi:10.1139/g82-070

Cited by 32 publications

(31 citation statements)

References 6 publications

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“…Homologies of G-banding patterns (figs 3, 4) confirmed the trisomy of the fifth autosome. The G-banding patterns of fifth pair of autosomes observed in this study were quite comparable to those described in Murrah (Riverine type) buffalo by Gupta and Ray Chaudhuri (1978), , and Bongso and Hilmi (1982). The fifth chromosome of the Swamp buffalo also had a similar G-banding pattern (Toll and (Herzog and Honn, 1968;Mori et al, 1969;Dunn and Johnson, 1972;Herzog, 1974), cardiac abnormalities and umbilical hernia (Tschudi et al, 1975), arthrogryposis and microphthalmia (Tschudi et al, 1977).…”

Section: Methodssupporting

confidence: 89%

Mosaicism of 50,XX/51,XX in a Murrah buffalo Bubalus bubalis

Yadav¹,

Kumar²,

Tomer³

et al. 1991

Genet. Sel. Evol.

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Section: Methodssupporting

confidence: 89%

Mosaicism of 50,XX/51,XX in a Murrah buffalo Bubalus bubalis

Yadav¹,

Kumar²,

Tomer³

et al. 1991

Genet. Sel. Evol.

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“…Studies on hybrids with uneven chromosome number in buffaloes [21] showed that the hybrids were fully fertile. However, the reduction in fertility in cattle hybrid with 2n = 59 were observed resulting from a non-equivalence of the homologous segments of chromosomes and by a gene diversity in the heterozygous sex [22] .…”

Section: Discussionmentioning

confidence: 99%

Somatic Chromosomes of the Bornean Sambar Deer and Rusa Deer Interspecific Hybrids

Idris¹,

Moin²

2009

American J. of Applied Sciences

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Problem statement: Hybridization has potential benefits to the Malaysian farmed deer industries in terms of increased growth rate and increased proportion of muscle and an improved alignment of feed supply and annual energy requirement. Species or subspecies of different chromosome constitution could mate to produce healthy hybrid offspring in a normal ratio of males and females. If any of the hybrid offspring were sterile, the sterile offspring would be the heterogametic offspring. The study investigated the use of chromosome banding method to detect chromosomal variation and to define the chromosome homology and the possibility of the Bornean Sambar deer (Cervus unicolor brookei) and Rusa deer (Cervus timorensis) hybrids to reproduce. Approach: Samples were collected from the Livestock Breeding Station, Sabrang, Keningau, Sabah, East Malaysia. The animals studied consisted of two deer subspecies namely the Bornean Sambar deer, Rusa deer and their hybrids. The karyotypes of the Bornean Sambar deer, Rusa deer and their F1 hybrids have been investigated by solid giemsa staining, G-banding and Ag-NOR banding techniques. Results: Rusa and Bornean Sambar have different chromosome number; 60 and 62 respectively, but share the same fundamental number of chromosome arm, 70. The hybrids have 2n = 61, consisting of 9 metacentric to submetacentric autosomes and 24 pairs of acrocentric autosomes with two acrocentrics and one submetacentric chromosome being unpaired. The morphology of the sex chromosomes in the F1 hybrids was similar to that of the parental species. The Ag-NOR pattern and the conventional Giemsa staining of chromosomes were effective as markers in the characterization of the karyotypes of the parental lines and hybrids because of the presence of active NORs on different chromosomes of different species. G-band, in contrast, showed complete homology in the presence of euchromatic bands and heterochromatin blocks respectively on each chromosome, suggesting that the two species have few genetic differences. Conclusion: In the present study, natural mating between Bornean Sambar deer and Rusa deer were conducted and the number and chromosomal location of the nucleolar organizer regions in their offsprings were analyzed by the silver staining method. Apart from that, the interspecific dissimilarities with regards to chromosome number and morphology are less extensive and the production of chromosomally balanced gametes could be expected.

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“…This may be due to inherited differences in sperm morphology; similar differences have been observed in different strains of laboratory mice 111. Furthermore, the river (2n = 50) and swamp (2n = 48) types of water buffalo were reported to be genetically different [4].…”

Section: Discussionmentioning

confidence: 99%

Comparative Silver Staining Patterns of Water Buffalo, Goat, and Pig Spermatozoa

Bongso

1983

Archives of Andrology

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from river and swamp water buffalo (Bubalus bubalis), goat, and pig were stained using a silver nitrate procedure and examined under bright field optics. The silver nitrate differentiated many detailed morphologic features of the head, midpiece, and tail of spermatozoa between the species studied. Acrosomal integrity due to sperm injury or aging and various sperm abnormalities were also clearly identified by silver nitrate. Silver staining patterns revealed species-specific and strain-specific differences, particularly of the sperm head. The biochemical basis of silver staining has been attributed to the presence of sulphydryl and disulphide-rich proteins. The technique is relatively inexpensive, rapid, and repeatable and may be useful for biological research and evaluation of semen for artificial insemination.

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CHROMOSOME BANDING HOMOLOGIES OF A TANDEM FUSION IN RIVER, SWAMP, AND CROSSBRED BUFFALOES (BUBALUS BUBALIS)

Cited by 32 publications

References 6 publications

Mosaicism of 50,XX/51,XX in a Murrah buffalo Bubalus bubalis

Mosaicism of 50,XX/51,XX in a Murrah buffalo Bubalus bubalis

Somatic Chromosomes of the Bornean Sambar Deer and Rusa Deer Interspecific Hybrids

Comparative Silver Staining Patterns of Water Buffalo, Goat, and Pig Spermatozoa

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