Germ cell studies in the male fox (Vulpes fulva)
Germ cell studies in the male fox (Vulpes fulva)
复制标题
DOI：
10.1002/ar.1090840202
复制
发表时间：
1942-10-01
影响因子：
--
通讯作者：
Bishop, DW
中科院分区：
文献类型：
--
作者：
Bishop, DW
生殖细胞的活动通过分裂的精原细胞和精母细胞以及成熟精子的存在而表现出来，在整个繁殖季节从一月到三月持续存在。成熟生殖细胞的形成速度较慢，为 2 个月。之前和 1 个月。交配后。狐狸的二倍体染色体数目为 32 条。据信二倍体精原细胞中会发生同源染色体的体细胞配对。配对染色体在整个生长期都被追踪。 [雄性]的性染色体复合体由一个小的Y和一个较大的X组成，它们在第一次减数分裂期间分离。在生长期存在于细胞质中的类染色质体经历两次分裂，并最终在精子发生过程中被丢弃。
Germ cell activity shown by the presence of dividing spermatogonia and spermatocytes and of mature sperm, continues throughout the breeding season from Jan. to March. Mature germ cells are formed, at a reduced rate, 2 mos. before and 1 mo. after matings. The diploid number of chromosomes in the fox is 32. Somatic pairing of homologous chromosomes in the diploid spermatogonia is believed to occur. The paired chromosomes have been traced through the growth period. The sex-chromosome complex in the [male] consists of a small Y and a larger X which segregate during the first meiotic division. A chromatoid body, present in the cytoplasm during the growth period, is carried through both divisions and is ultimately discarded during spermiogenesis.