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ALLOZYME EVIDENCE FOR POLYZYGOTIC POLYEMBRYONY IN SIBERIAN STONE PINE (PINUS-SIBIRICA DUTOUR)статья Исследовательская статья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 февраля 2020 г.
- Авторы: KRUTOVSKII KV, POLITOV DV
- Журнал: Theoretical and Applied Genetics
- Том: 90
- Номер: 6
- Год издания: 1995
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 811
- Последняя страница: 818
- DOI: 10.1007/BF00222016
- Аннотация: Approximately 4000 mature seeds from 350 trees in nine populations (12–75 trees per population) of Siberian stone pine were investigated for multiple embryos (polyembryony). Haploid megagametophytes and embryos were genotyped for eight allozyme loci. Eight-yone seeds (2.11%) had more than 1 embryo. Of these, 71 seeds had 2 embryos (1.85%), 6 seeds had 3 embryos (0.16%), 3 seeds had 4 embryos (0.08%) and 1 seed had 6 embryos (0.026%). Allozyme comparison of megagametophytes and embryos could distinquish two types of polyembryony in 56 of the 81 seeds. In 28 seeds (50%) the polyembryony was polyzygotic (independent fertilizations of more than one egg cell in the ovule); 25 seeds (45%) had most likely monozygotic polyembryony (genetically identical embryos resulting from the cleavage of a single proembryo) and 3 seeds had both genetically different and genetically identical embryos. To the best of our knowledge, this is the first genetic evidence for the form of polyembryony in conifer seeds.
- Добавил в систему: Крутовский Константин Валерьевич