Analysis of the synaptonemal complex of the nine-banded armadillo, Dasypus novemcinctus

被引：0
|
作者：
Scavone, MDD
Oliveira, C [1 ]
Bagagli, E
Foresti, F
机构：
[1] ENESP, Dept Morphol, BR-18618000 Botucatu, SP, Brazil
[2] ENESP, Dept Microbiol Immunol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
来源：
GENETICS AND MOLECULAR BIOLOGY | 2000年 / 23卷 / 03期
关键词：
D O I：
暂无
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The synaptonemal complex (SC) of three specimens of the nine-banded armadillo (Dasypus novemcinctus) was analyzed. Thirty-two bivalents (2n = 64) were observed, 31 of them being autosomes and one an XY sexual bivalent. Chromosome synapsis processes and nucleolus structure changes were analyzed in zygotene and pachytene cells, allowing a detailed description of the beginning of meiotic prophase in this species. There was complete synapsis of X and Y chromosomes. Some abnormalities in SC were observed in cells during zygotene and at the beginning of pachytene, but not in cells in the middle and late pachytene, suggesting the occurrence of synaptic adjustments in their SC.
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页码：613 / 616
页数：4
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