Use of molecular markers for the identification of River Buffalo chromosomes: chromosome one
1997
Nahas, S.M El | Oraby, H.O. | Othman, O.E. | Hondt, H.A de | Bosma, A.A. | Womack, J.E.
A standard karyotype for the River Buffalo has recently been established. The largest five chromosomes are biarmed and, based on the banding homology between cattle and buffalo chromosomes, were suggested to originate from the fusion of cattle acrocentric chromosomes. The origin of buffalo chromosome 1 is controversial due to the difficulty in differentiating between the small acrocentric cattle chromosomes. Using molecular markers assigned to cattle chromosomes, synteny between CD18, a marker for BTA1, and markers for small acrocentric cattle chromosomes BTA 24 to BTA 29 was investigated in buffalo/hamster somatic cell hybrids. The investigation revealed that CD18 is syntenic with ANT1, a marker for cattle chromosome 27. The present results confirm that buffalo BBU1 results from fusion of cattle BTA 1 and BTA 27. They also underline the importance of biarmed buffalo chromosomes for the identification of small cattle acrocentrics.
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