Chromatin diminution during endosperm development in Allium atroviolaceum Boiss. (Alliaceae)

1175 8 4834 2 13464 document 4834 256421960_Chromatin_diminution_during_endosperm_development_in_Allium_atroviolaceum_Boiss._(Alliaceae)_ev=prf_pub text/html 823b5875d7754d47d727fdff02bf6974 MD5 163764 2014-02-21 15:30:06 http://eprints.iliauni.edu.ge/1175/1/256421960_Chromatin_diminution_during_endosperm_development_in_Allium_atroviolaceum_Boiss._%28Alliaceae%29_ev%3Dprf_pub 1175 1 1 text/html text en public

256421960_Chromatin_diminution_during_endosperm_development_in_Allium_atroviolaceum_Boiss._(Alliaceae)_ev=prf_pub

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7767 2 21097 document 7767 lightbox.jpg image/png 500de4bbeb5c0f81a53704fee8e32d2e MD5 56268 2015-03-24 10:49:01 http://eprints.iliauni.edu.ge/1175/3/lightbox.jpg 1175 3 3 image/png other Thumbnails conversion from text to thumbnail_lightbox ge public

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http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/7766 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/7766 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/7766 archive 65 disk0/00/00/11/75 2014-02-24 07:51:12 2015-03-24 10:38:25 2014-02-24 07:51:12 article show maia_akhalkatsi@iliauni.edu.ge Gvaladze Guranda Nadirashvili Nino Akhalkatsi Maia maia_akhalkatsi@iliauni.edu.ge Chromatin diminution during endosperm development in Allium atroviolaceum Boiss. (Alliaceae) pub QK public On the base of these data one should be suggested that the genome of the chalazal polar nucleus of A. atroviolaceum undergoes complete or partially inactivation already at the megagametogenesis by transforming into facultative heterochromatin. During endosperm formation, genome of the chalazal polar nucleus should not play any essential role in the functioning of the endosperm nuclei and proceeds its elimination from the triploid endosperm genome originated by the triple fusion. Although, participation of the chalazal polar nucleus in the formation of the primary endosperm nucleus supports earlier hypothesis (Gvaladze, 1976) that a role of the chalazal polar nucleus of A. atroviolaceum in a triple fusion is restricted only to the initiation of earlier development of the endosperm in comparison with the embryo. Beginning with the 8-nucleate stage, in spite of the elimination of the chalazal polar nucleus genome from the endosperm nuclei, the development of diploid endosperm proceeds similar to the triploid endosperm of the other Allium species that do not possess pycnotic chalazal polar nucleus and are not characterized by DNA elimination from the endosperm nuclei. 2002-01-01 published Bulletin of the Georgian National Academy of Sciences 166 3 Georgian National Academy of Sciences 537-540 TRUE 0132 - 1447 http://www.science.org.ge/english.html https://www.researchgate.net/publication/256421960_Chromatin_diminution_during_endosperm_development_in_Allium_atroviolaceum_Boiss._(Alliaceae)?ev=prf_pub