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dc.contributor.authorFUZINATTO, V. A.
dc.contributor.authorPAGLIARINI, M. S.
dc.contributor.authorVALLE, C. B. do
dc.date.accessioned2018-01-29T23:34:19Z-
dc.date.available2018-01-29T23:34:19Z-
dc.date.created2008-03-17
dc.date.issued2007
dc.identifier.citationGenetics and Molecular Research, Ribeirão Preto, v. 6, n. 2, p. 308-315, 2007.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/326640-
dc.descriptionMorphological changes have been investigated during plant programmed cell death (PCD) in the last few years due to the new interest in a possible apoptotic-like phenomenon existing in plants. Although PCD has been reported in several tissues and specialized cells in plants, there have been few reports of its occurrence during microsporogenesis. The present study reports a typical process of PCD during meiosis in an interspecific Brachiaria hybrid leading to male sterility. In this hybrid, some inflorescences initiated meiosis but it was arrested in zygotene/pachytene. From this stage, meiocytes underwent a severe alteration in shape showing substantial membrane blebbing; the cytoplasm became denser at the periphery; the cell nucleus entered a progressive stage of chromatin disintegration, and then the nucleolus disintegrated, and the cytoplasm condensed and shrunk. The oldest flowers of the raceme showed only the callose wall in the anthers showing obvious signs of complete sterility.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBraquiária
dc.subjectPCD
dc.subjectCampo Grande
dc.subjectMato Grosso do Sul
dc.subjectBrasil
dc.subjectFeed crops
dc.subjectFeed grasses
dc.titleEvidence of programmed cell death during microsporogenesis in an interspecific Brachiaria (Poaceae: Panicoideae: Paniceae) hybrid.
dc.typeArtigo de periódico
dc.date.updated2018-01-29T23:34:19Zpt_BR
dc.subject.thesagroMelhoramento genético vegetal
dc.subject.thesagroCitogenética vegetal
dc.subject.thesagroPlanta Forrageira
dc.subject.thesagroGramínea forrageira
dc.subject.thesagroHibridopt_BR
dc.subject.thesagroMeiosept_BR
dc.subject.nalthesaurusCytogenetics
dc.subject.nalthesaurusPlant breeding
dc.subject.nalthesaurusHybrids
dc.subject.nalthesaurusMeiosis
dc.subject.nalthesaurusBrazilpt_BR
riaa.ainfo.id326640
riaa.ainfo.lastupdate2018-01-29
dc.contributor.institutionVeridiana Aparecida Fuzinatto, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC.
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