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dc.contributor.authorFUZINATO, V. A.pt_BR
dc.contributor.authorPAGLIARINI, M. S.pt_BR
dc.contributor.authorVALLE, C. B. dopt_BR
dc.date.accessioned2011-10-01T01:00:07Z-
dc.date.available2011-10-01T01:00:07Z-
dc.date.created2009-04-20pt_BR
dc.date.issued2008pt_BR
dc.identifier.citationGenetics and Molecular Research, Ribeirão Preto, v.7, n. 2, p. 424-432, 2008.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/326850pt_BR
dc.descriptionMicrosporogenesis in an interspecific Brachiaria hybrid, grown in the field under natural environmental conditions in Brazilian savannas, was analyzed in three distinct years of collection. Several types of meiotic abnormalities were recorded during those three years, but varied in type and frequency depending on the year. The average temperature and rainfall 15 days before collection was unusually high in those years. The percentage of abnormal meiocytes recorded was 62% in 2001, 73% in 2004, and 77% in 2005. The abnormalities observed during microsporogenesis compromised pollen viability by generating unbalanced gametes or affecting nucleolus organization. The environmental conditions under which the hybrid was growing could have affected the genetic control of meiosis. More detailed studies, under controlled conditions, are necessary to better understand the effects of environmental factors on Brachiaria microsporogenesis hybrids.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectMicrosporogênsept_BR
dc.subjectBraquiáriapt_BR
dc.subjectCampo Grandept_BR
dc.subjectMato Grosso do Sulpt_BR
dc.subjectBrasilpt_BR
dc.titleEvaluation of microsporogenesis in an interspecific Brachiaria hybrid (Poaceae) collected in distinct years.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2018-01-29T11:11:11Zpt_BR
dc.subject.thesagroMelhoramento genético vegetalpt_BR
dc.subject.thesagroPastagempt_BR
dc.subject.thesagroCitogenética vegetalpt_BR
dc.subject.thesagroMeio ambientept_BR
dc.subject.thesagroHibridopt_BR
dc.subject.thesagroPlanta Forrageirapt_BR
riaa.ainfo.id326850pt_BR
riaa.ainfo.lastupdate2018-01-29 -02:00:00pt_BR
dc.contributor.institutionVeridiana Aparecida Fuzinatto, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC.pt_BR
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