来自土耳其的河狸鼠（莫利纳，1782年）的C带核型（哺乳纲：啮齿目）

C-banded karyotype of Myocastor coypus (Molina, 1782) from Turkey (Mammalia: Rodentia).

作者信息

Iliker Ayşegül, Arslan Atilla, Pamukoğlu Nahit, Albayrak Irfan

机构信息

Department of Biology, Faculty of Science and Arts, Kirikkale University, 71450, Yahşihan, Kirikkale, Turkey.

出版信息

Folia Biol (Krakow). 2009;57(1-2):33-6. doi: 10.3409/fb57_1-2.33-36.

DOI:10.3409/fb57_1-2.33-36

PMID:19459458

Abstract

The present study reports the C-band patterns of chromosomes of Myocastor coypus from Turkey. The karyotype of M. coypus is comprised of (2n) 42 chromosomes, the number of chromosomal arms (FN) was 83 and the number of autosomal arms (FNa) was 80. The X chromosome was a medium-sized metacentric and the Y chromosome was acrocentric and the smallest in the set. Two metacentric chromosomes have secondary constrictions. Most autosomes in this species were centromeric C-positive and some autosomes had telomeric C-bands. The X chromosome has centromeric heterochromatin, while the Y chromosome appeared to be entirely heterochromatic.

摘要

本研究报告了来自土耳其的河狸鼠染色体的C带模式。河狸鼠的核型由42条染色体（2n）组成，染色体臂数（FN）为83，常染色体臂数（FNa）为80。X染色体是中等大小的中着丝粒染色体，Y染色体是端着丝粒染色体，且是该组中最小的。两条中着丝粒染色体有次缢痕。该物种的大多数常染色体着丝粒C带呈阳性，一些常染色体有端粒C带。X染色体有着丝粒异染色质，而Y染色体似乎完全是异染色质。