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dc.contributor.authorADAMOWSKI, E. V.
dc.contributor.authorBOLDRINI, K. R.
dc.contributor.authorPAGLIARINI, M. S.
dc.contributor.authorVALLE, C. B. do
dc.date.accessioned2018-01-26T23:36:47Z-
dc.date.available2018-01-26T23:36:47Z-
dc.date.created2008-03-17
dc.date.issued2007
dc.identifier.citationGenetics and Molecular Research, Ribeirão Preto, v. 6, n. 3, p. 616-621, 2007.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/326647-
dc.descriptionMicrosporogenesis was evaluated in the Brachiaria humidicola collection of the Embrapa Beef Cattle Center, represented by 60 acessions. One acession (H121) presented an abnormal pattern of cytokinesis that had never been reported in this genus. Among 900 meiocytes analyzed in the first division, 10.7% underwent precocious and multiple cytokinesis in metaphase I, fractionating the genome and the cytoplasm into two or more parts. The expected cytokinesis after telophase I did not occur. The abnormal meiocytes from the first division entered the second division but the second cytokinesis after telophase II was also abnormal. Among the 857 meiocytes analyzed in the second division, 10.9% presented abnormal, incomplete or total absence of cytokinesis. Dyads and binucleated microspores were recorded among the meiotic products. The use of this accession in the Embrapa breeding program is compromised.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBraquiária
dc.subjectCitocinese
dc.subjectCampo Grande
dc.subjectMato Grosso do Sul
dc.subjectBrasil
dc.subjectFeed crops
dc.subjectFeed grasses
dc.subjectCitokinesis
dc.titleAbnormal cytokinesis in microsporogenesis of Brachiaria humidicola (Poaceae: Paniceae).
dc.typeArtigo de periódico
dc.date.updated2018-01-26T23:36:47Zpt_BR
dc.subject.thesagroMelhoramento genético vegetal
dc.subject.thesagroCitogenética vegetal
dc.subject.thesagroPlanta Forrageira
dc.subject.thesagroMeiose
dc.subject.thesagroBrachiaria Humidicola
dc.subject.nalthesaurusPlant breeding
dc.subject.nalthesaurusCytogenetics
dc.subject.nalthesaurusBrazilpt_BR
riaa.ainfo.id326647
riaa.ainfo.lastupdate2018-01-26
dc.contributor.institutionEleniza de Victor Adamowski, UEM; Kellen Regina Boldrini, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC.
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