Affiliation:
1. Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-718 Olsztyn, Poland
Abstract
Cobitis species exist in diploid populations, but mostly they occur in diploid-polyploid (d-p) ones. They are considered an important model organism to study biology and physiology of natural hybrid and polyploid vertebrates. Indeed, polyploidization causes a huge stress for the cell physiology and alter spermatogenesis in polyploid fish. The most extensively studied modes of germ cell death during spermatogenesis in vertebrates is apoptosis. The aim of the study was to examine the caspase-3 immunoexpression in the testes of Cobitis taenia from diploid population as well as C. taenia and sterile tetraploid Cobitis from d-p population before, during and after spawning. The obtained results suggest a different performance of apoptosis in testes of C. taenia from both studied populations and seems to be conditioned by their role as the only sperm donors in d-p populations. Moreover, apoptosis was active cell death process in the testes of tetraploid Cobitis.
Publisher
The Company of Biologists
Subject
Insect Science,Molecular Biology,Animal Science and Zoology,Aquatic Science,Physiology,Ecology, Evolution, Behavior and Systematics
Reference41 articles.
1. Genomic constitution and atypical reproduction in poliploid and unisexual lineages of the Misgurnus loach, a teleost Fish;Arai;Cytogenet. Genome Res.,2013
2. The legacy of sexual ancestors in phenotypic variability, gene expression and homoeolog regulation of asexual hybrids and polyploids;Bartoš;Mol. Biol. Evol.,2019
3. Karyotypes and cytogenetic diversity of the genus Cobitis (Pisces, Cobitidae) in Poland: a review. Cytogenetic evidence for a hybrid origin of some Cobitis triploids;Boroń;Folia Biol.,2003
4. Gene mapping of 28S and 5S rDNA sites in the spined loach Cobitis taenia (Pisces, Cobitidae) from a diploid population and a diploid-tetraploid population;Boroń;Genetica,2006
5. The diversity of chromosome structure of males in Cobitis (Teleostei, Cobitidae) populations;Boroń;Front. Mar. Sci.,2015
Cited by
4 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