Circadian rhythms of gene expression at leaves of vegetating plants

• Дата: 2010
• Автор: Tsygankova, V.A.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут молекулярної біології і генетики НАН України 2010
• Назва видання: Фактори експериментальної еволюції організмів
• Теми: Механізми взаємодії та експресії генетичних систем
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/177740
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Circadian rhythms of gene expression at leaves of vegetating plants / V.A. Tsygankova // Фактори експериментальної еволюції організмів: Зб. наук. пр. — 2010. — Т. 9. — С. 124-128. — Бібліогр.: 16 назв. — англ.

Abstract Using DOT-blot hybridization DNA with RNA the analysis of degree homology of products of gene expression (cytoplasmical mRNAs) is fulfilled from the cells of dicotyledonous (soya, pea) and monocotyledonous plants (wheat, corn) leaves, after their separation from plants in an early period with weak photosynthesis (at 5 a.m.), in a middle period (at 2 p.m.) with strong photosynthesis and in the evening period with weak photosynthesis to the relation to mRNA from plant leaves, being in a dark phase (at 2 a.m.). It is shown that divergence in populations between experience and control begins in the early morning at weak sunshine, sharply increases at daily light (at 2 p.m.) and goes out on sunset. It is assumed that these changes occur by the “windmill” switching genes, belonging to one family, but possessing different activity due to location them under promoters of different force (promoters of weak, moderate and strong force) and that plasticity (maneuverability) of plant adaptation to the environment is arrived by such mechanism.