Author:
Špakulová M.,Králová I.,Cutillas C.
Abstract
AbstractThe cytological study of males and females of Trichuris muris (Schrank, 1788) revealed the diploid number of chromosomes to be 2n=6. The sex determining mechanism was XX♀/XY♂. All the chromosomes were subtelocentric. Sex chromosomes formed the smallest pair, but X and Y were difficult to distinguish morphologically. Chromosome changes during gametogenesis in both sexes followed a classical pattern except in the male prophase and metaphase I. Four male autosomes formed two bivalents, each with one proximal chiasma with strict localization, while sex chromosomes X and Y formed two univalents. Female chromosomes formed three rod bivalents type, which possessed three, two and two chiasmata.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology,General Medicine,Parasitology
Reference11 articles.
1. Karyotypes of Trichocephalus muris (Schrank, 1788) and T. myocastoris (Enigk, 1933);Dmitrieva;Acta Parasitologica Lituanica,1979
2. SPERMATOGENESIS IN A TRICHUROID NEMATODE,TRICHURIS MURIS.II. FINE STRUCTURE OF PRIMARY SPERMATOCYTE AND FIRST MEIOTIC DIVISION
3. Some cytogenetical aspects of genus Trichuris (Nematoda);Goswami;Current Science,1978
4. Ultrastructural studies of early stages of oogenesis in a trichuroid nematode,Trichuris muris
5. Valero A. (1980) A contribution to the cytogenetics of phylum Nematoda. Thesis, University of Granada, 337 pp.
Cited by
18 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献