Data di Pubblicazione:
1997
Citazione:
A multi-nucleate male sterile mutant of maize with gametophytic expression / M. Sari-Gorla, E. Gatti, M. Villa, M.E. Pè. - In: SEXUAL PLANT REPRODUCTION. - ISSN 0934-0882. - 10:1(1997 Feb), pp. 22-26. [10.1007/s004970050063]
Abstract:
In order to dissect the complex genetic system that controls pollen development, we have undertaken a program of transposon insertion mutagenesis, with the purpose of producing mutations in gametophytically acting genes that are important for this process, The present work reports the developmental cytology of one of thr mutants isolated, gaMS-2 (gametophytic male sterile-2). A peculiar feature of tile mutant grains was lack of differentiation between the vegetative and the generative nuclei, leading to alteration in number, conformation and placement of nuclei. At anthesis. the grains carrying the mutant allele are about 40% of the normal grain size, contain a very reduced amount of starch and exhibit various nuclear abnormalities.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
maize ; pollen ; male sterility ; gametophytic mutants
Elenco autori:
M. Sari-Gorla, E. Gatti, M. Villa, M.E. Pè
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