Open AccessGene conversion as a possible factor influencing genetic polymorphism
Author(s) -
SYWULA TADEUSZ
Publication year - 1989
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1989.tb00392.x
Subject(s) - biology , genetics , mendelian inheritance , locus (genetics) , gene conversion , allele , parthenogenesis , gene , coding region , founder effect , haplotype , embryo
The ostracode Cytherissa lacustris (Sars) has been obligatorily parthenogenetic at least since the Meso‐pleistocene. Old and large populations of it from the lakes of the Salzkammergut area in Austria exhibit quite high polymorphism and quasi‐Mendelian proportions at the locus coding for glucose‐6‐phosphate isomerase. It is argued that this polymorphism has been attained through generations owing to gene conversion operating on the basis of the founder effect, mutations and migration; the effects of gene conversion were then amplified by selection and/or by random events.