Title:	Unusual cytological patterns of microsporogenesis in Brachiaria decumbens: abnormalities in spindle and defective cytokinesis causing precocious cellularization.
Authors:	MENDES-BONATO, A. B. JUNQUEIRA FILHO, R. G. PAGLIARINI, M. S. VALLE, C. B. do PENTEADO, M. I. de O.
Affiliation:	ANDRÉA BEATRIZ MENDES-BONATO, UNIVERSIDADE ESTADUAL DO MARINGÁ; ROBERTO GARGIONE JUNQUEIRA FILHO, UNIVERSIDADE ESTADUAL DO PARANÁ; MARIA SUELY PAGLIARINI, UNIVERSIDADE ESTADUAL DE MARINGÁ; CACILDA BORGES DO VALLE, CNPGC; MARIA ISABEL DE O PENTEADO, SPRI.
Date Issued:	2001
Citation:	In: CONGRESSO NACIONAL DE GENÉTICA, 47., 2001, Águas de Lindóia. A genética no século XXI: desafios: anais. [Ribeirão Preto, SP]: Sociedade Brasileira de Genética, 2001.
Pages:	1 p.
Description:	The product of meiosis is a callose-enclosed tetrad of haploid microspores resulted from partitioning of the cytoplasm, a process called as cytokinesis. Cytokinesis requires both the tubulin and the actin cytoskeleton at various stages in its initiation and execution. In many species, abnormalities related to spindle and cytokinesis affected the cellularization process compromising the meiosis products and pollen fertility. Despite its economic importance for forage, the genus Brachiaria is poorly known on their cytological basis. Cytogenetic studies carried out in the tetraploid accession D62 of Brachiaria decumbens (2n=4x=36) revealed an unusual pattern of microsporogenesis.
Thesagro:	Brachiaria Decumbens Citogenética Vegetal Gramínea Forrageira Meiose Melhoramento Genético Vegetal Pastagem
NAL Thesaurus:	Cytokinesis Meiosis Pastures Plant breeding
Type of Material:	Resumo em anais e proceedings
Access:	openAccess
Appears in Collections:	Resumo em anais de congresso (CNPGC)