Influence of Parental Age on Endoreduplication of Giant Chromosomes and Some Quantitative Traits in Drosophila melanogaster Descendants

Autor:	V. Yu. Strashnyuk, M. A. Rarog, L. I. Vorob'eva
Rok vydání:	2004
Předmět:	Genetics animal structures biology Strain (biology) Mutation (genetic algorithm) Chromosome Endoreduplication Expressivity (genetics) Drosophila melanogaster Quantitative trait locus biology.organism_classification Drosophila Developmental Biology
Zdroj:	Russian Journal of Developmental Biology. 35:37-41
ISSN:	1062-3604
DOI:	10.1023/b:rudo.0000015124.26423.8f
Popis:	We studied the influence of parental age on the degree of polyteny of giant chromosomes and expressivity of mutation eyeless in Drosophila melanogaster descendants. The parental age equal to six days exerted an adverse effect on the function of endoreduplication of giant chromosomes in straineyeless. The highest degree of polyteny was observed in descendants of four- and ten-day imago. The maximum reduction of eye facets was observed in descendants of four-day imago, while in the progeny of older parents, the mutation expressivity was sharply reduced. Relations between the changes in chromosome polyteny, expressivity of mutation eyeless, and earlier studied components of adaptation were statistically analyzed in descendants of aging parents of this Drosophila strain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82880bed2b27fc3dee031a6dfa8d6609 https://doi.org/10.1023/b:rudo.0000015124.26423.8f Zobrazit plný text záznamu Full text from SpringerLink