학술논문
A rare chromosomal polymorphism in a Kangayam bull (Bos indicus) of south India
Document Type
Academic Journal
Source
Comparative Cytogenetics. December 15, 2021 Issue 4, p459, 7 p.
Subject
Language
English
ISSN
1993-0771
Abstract
Author(s): Vemula Harshini (corresponding author) [1]; P. Kumarasamy [1]; S.M.K. Karthickeyan [1] Introduction The Kangayam breed of cattle is a pride of Tamil Nadu and native to south India. It [...]
Abstract A chromosomal polymorphism was detected on karyological screening of Kangayam breeding sires prior to subjecting them for frozen semen collection. One bull possessed the chromosomal complement 2n = 60, consisting of 58 acrocentric autosomes, one large sub-metacentric X-chromosome, and one small acrocentric Y-chromosome with a small visible p-arm, which was further confirmed using CBG- and GTG-banding. This polymorphism was attributed to a heterochromatin variation of the acrocentric Y-chromosome routine in the Bos indicus Linnaeus, 1758 cattle. Keywords: Heterochromatin variation, individual chromosomal polymorphism, karyological screening
Abstract A chromosomal polymorphism was detected on karyological screening of Kangayam breeding sires prior to subjecting them for frozen semen collection. One bull possessed the chromosomal complement 2n = 60, consisting of 58 acrocentric autosomes, one large sub-metacentric X-chromosome, and one small acrocentric Y-chromosome with a small visible p-arm, which was further confirmed using CBG- and GTG-banding. This polymorphism was attributed to a heterochromatin variation of the acrocentric Y-chromosome routine in the Bos indicus Linnaeus, 1758 cattle. Keywords: Heterochromatin variation, individual chromosomal polymorphism, karyological screening