Cell fusion and chromatin degeneration in an inbred line of maize

Author:

Caetano-Pereira Creuci Maria1,Pagliarini Maria Suely2,Brasil Edward Madureira3

Affiliation:

1. CEFET-PR, Brasil

2. Universidade Estadual de Maringá, Brasil

3. Universidade Federal de Goiás, Brasil

Abstract

A large number of maize genotypes are currently being evaluated to determine the effect of environmental stress caused by the aluminum found in cerrado soils on meiotic behavior. In the present study we report the occurrence of cell fusion followed or not by chromatin degeneration in meiocytes of some plants of an inbred line of maize grown on acid and corrected soil in the Brazilian central plateau. The results suggest the absence of any soil effect on the irregularities observed since the number of affected plants was higher among those grown on corrected soil. The possible causes of these irregularities and their influence on male sterility are discussed.

Publisher

FapUNIFESP (SciELO)

Subject

Genetics,Molecular Biology

Reference24 articles.

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2. Unusual shapes of maize microsporocytes;Caetano-Pereira C.M;Nucleus,1996

3. Cytomixis in maize microsporocytes;Caetano-Pereira C.M.;Cytologia,1997

4. Spontaneous chromosome fragmentation in maize microsporocytes;Caetano-Pereira C.M.;Cytologia,1995

5. Influence of aluminum in causing chromosome stickiness in maize microsporocytes;Caetano-Pereira C.M.;Maydica,1995

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