publication . Bachelor thesis . 2017

Haldaneovo pravidlo a mechanismy hybridní sterility samic u ptáků

Baránková, Lucie;
Restricted Czech
  • Published: 01 Jan 2017
  • Country: Czech Republic
Abstract
Hybrid sterility is one of the mechanisms of intrinsic postzygotic reproduction barriers between species and plays a key role in the process of speciation, which is emergence of new species. In accordance with Haldane's rule, hybrid sterility affects preferably the heterogametic sex, which means that in organisms with XY chromosomes, such as mammals or drosophila, male sterility will be affected by sterility of hybrid offspring, while organisms with ZW chromosomes such as birds or butterflies, will be a sterile hybrid female. Symptoms and mechanisms of hybrid sterility are well studied in organisms with heterogametic males, whereas far fewer studies have been pe...
Subjects
free text keywords: hybrid sterility; hybridní sterilita; Haldaneovo pravidlo; Haldane's rule; postzygotic izolation; speciace; speciation; ptáci; postzygotická izolace; birds
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