Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria)

• Дата: 2014
• Автори: Tashev, A.N., Sedel’nikova, T.S., Pimenov, A.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут клітинної біології та генетичної інженерії НАН України 2014
• Назва видання: Цитология и генетика
• Теми: Оригинальные работы
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/126635
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria) / A.N. Tashev, T.S. Sedel’nikova, A.V. Pimenov // Цитология и генетика. — 2014. — Т. 48, № 3. — С. 30-36. — Бібліогр.: 41 назв. — англ.

Investigations on B chromosomes found for the first time for Picea abies (L.) H. Karst. have been conducted. Seeds of Picea abies from two populations of Western Rhodopes (Bulgaria) located at the southern border of species range, and protected according to Bern Convention and EC Habitat Directive were collected for this study. Mixoploidy was detected in some germinating seeds of Picea abies. It was found that metaphase cells of germinating seeds contain 0–4 B chromosomes of both metacentric and submetacentric types. The variability of B chromosomes number and their occurrence was observed. Along with B chromosomes, some chromosome aberrations such as fragments and ring chromosomes were revealed in metaphase cells of Picea abies from studied populations. The possible adaptive role of B chromosomes presence for Picea spp. is discussed.