АНАЛІЗ ФЕНОТИПІЧНОЇ СТРУКТУРИ ПОСЕЛЕНЬ МІДІЙ MYTILUS GALLOPROVINCIALIS ЧОРНОГО МОРЯ ПО КОЛЬОРУ ЗОВНІШНЬОГО ПРИЗМАТИЧНОГО ШАРУ ЇХ РАКОВИН
Three phenotypes of mussel Mytilus galloprovincialis from the Black Sea are separated on features of distribution of a violet pigment in outer prismatic shell layer: (1) the violet pigment is absent in prismatic layer, (2) pigment paints the whole of prismatic layer, (3) pigment is localized in the...
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| Date: | 2023 |
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| Main Authors: | , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Marine Ecological Journal
2023
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| Subjects: | |
| Online Access: | https://mej.od.ua/index.php/mej/article/view/438 |
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| Journal Title: | Marine Ecological Journal |
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Marine Ecological Journal| Summary: | Three phenotypes of mussel Mytilus galloprovincialis from the Black Sea are separated on features of distribution of a violet pigment in outer prismatic shell layer: (1) the violet pigment is absent in prismatic layer, (2) pigment paints the whole of prismatic layer, (3) pigment is localized in the form of the radial strips alternating with unpigmented zones. First two forms are interpreted as homozygotes, last as heterozygote. The genetic nature of shell colour as system of two alleles with codomination proves to be true conformity of the revealed and expected frequencies of phenotypes on Hardy–Weinberg formula. On the basis of such approach the phenotypic structure of some mussel settlements from north-western and western parts of the Black Sea is considered, the role of environmental factors and age structure of mussels in variability of heterozygote deficiency is analyzed. |
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