Проаналізовано ядерно-ядерцеві характеристики насіння Pinus brutia var. stankewiczii Sukacz. в умовах крайової частини ареалу та рекреаційного навантаження. Виявлено міжпопуляційний поліморфізм кількості ядерець та їх розмірів в клітинах проростків насіння P. brutia var. stankewiczii з південно-східного узбережжя Криму. Для популяції що зазнає рекреаційного навантаження відмічено зростання середньої площі ядерець в ядрі та зменшення ядерно-ядерцевого співвідношення, що вказує на підвищення функціональної активності генетичного апарату клітин у відповідь на дію несприятливих умов. Показано зміну ядерно-ядерцевих показників в залежності від рівню гетерозиготності материнських дерев. Для низькогетерозиготних рослин виявлено збільшення розмірів ядерець. Виявлені тенденції вказують на комплексний характер змін в клітинах насіннєвого потомства P. brutia var. stankewiczii.
Ключові слова: ядро, ядерце, рівень гетерозиготності, Pinus brutia var. stankewiczii Sukacz.
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