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Title: | Adaptive significance of amylase polymorphism in drosophila. XV.: Examination of genotype-by-environment interactions on the viability, developmental time and stability of drosophila subobscura homozygous for amy during exposure to nutritional changes | Authors: | Savić, Tatjana Patenković, Aleksandra Stamenković Radak, Marina Andjelković, Marko |
Keywords: | Amy locus;Developmental stability;Developmental time;Environmental change;Fluctuating asymmetry;Viability | Issue Date: | 1-Dec-2011 | Journal: | Archives of Biological Sciences | Abstract: | Due to the direct interaction between enzyme and substrate, the amylase system can provide valuable information on the relationship between homozygosity and developmental homeostasis under a changing environment in several Drosophila species, The adaptive significance of the relationship between genetic variability and environmental change manifests through the well-known polymorphism of the amylase locus (Amy). We examined the effect of gradual and abrupt changes in starch concentration in the nutritional substrate, on the developmental time, egg-to-adult viability and phenotypic plasticity in the progeny of Drosophila subobscura that was homozygous for "fast" (Amy F/Amy F) and "slow" (Amy S/Amy S) Amy alleles. Our findings show that gradual and abrupt nutritional changes exert a significant effect on developmental time and viability. A high heterogeneity among genotypes in fluctuating asymmetry (FA) and no direct association between FA and fitness components under the two experimental regimes of environmental change were observed. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/455 | ISSN: | 0354-4664 | DOI: | 10.2298/ABS1104273S |
Appears in Collections: | Journal Article |
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