Lab

Elena Valentinovna Andronova's Lab

About the lab

Plant reproduction, embryology, seed develipment, reproductive biology

Featured projects (2)

Project
Цель работы: исследования генетической структуры популяций и особенностей репродуктивной биологии редких видов орхидных Objective: To study the genetic structure of populations and reproductive biology of rare Orchid species

Featured research (1)

Keywords : 1 2 1 04.12.2019; Revised: 15.12.2019; Accepted and Published online: 20.12.2019 The analysis of data on fruitаge, heterospermy, viability of seeds and seed progeny in Orchis purpurea at the northeastern limit of distribution (Krasnodar region and Crimea) was carried out. The percentage of fruit formation in the Krasnodar region was low with natural pollination (on average 1-4 %), and higher with artificial pollination (on average 34-77%). In the Crimea the percentage of fruit set varied from 9 % (forest) to 39 % (meadow). Seeds were differed in vitality; color of seed coat and embryo, as well as by the degree of homogeneity of their dimensional parameters (length, width) and shape. Plants from the populations of the Krasnodar region were characterized by a high number of non-viable seeds, without embryo or with degenerating embryo. It was shown that the proportion of seeds without embryos in fruits obtained by autogamy or geitonogamy is higher (between different plants 22-93 %, in average 63 %) than in fruits formed after cross-pollination between different individuals (xenogamy) (3-69 %, in average 34 %). It was found that a high proportion of non-viable seeds are a consequence of the manifestation of lethal anomalies of embryogenesis. The viability of the seeds (both from the Caucasus and Crimea) in a germination test was low. Plants from the studied populations are characterized by low real seed productivity. Based on the results of the cytoembryological study, a general conclusion can be drawn that the low real seed productivity of O. purpurea, both in the Caucasus and in the Crimea, arises due to the lethal anomalies manifested both at the stage of seed development and in the post-seed period.

Lab head

Elena Valentinovna Andronova
Department
  • Embryology and Reproductive biology
About Elena Valentinovna Andronova
  • Elena Valentinovna Andronova currently works at the Embryology and Reproductive biology, Russian Academy of Sciences, St Petersburg. Elena does research in Botany, Genetics and Developmental Biology. Their current project is 'Molecular genetic aspects of natural hybridization and peculiarities of reproductive biology in orchids [Молекулярно-генетические аспекты естественной гибридизации и особенности репродуктивной биологии у орхидных'].

Members (4)

Oksana G Butuzova
  • Russian Academy of Sciences
Alla Anatolyevna Torshilova
  • Russian Academy of Sciences
Elena Evgenyevna Evdokimova
  • Russian Academy of Sciences
Alina Alexandrovna Kovaleva
  • Russian Academy of Sciences, St Petersburg