A multi-nucleate male-sterile mutant of maize with gametophytic expression |
| |
Authors: | M Sari-Gorla Emanuele Gatti Marzio Villa M Enrico Pè |
| |
Institution: | (1) Department of Genetics and Microbiology, University of Milan, Via Celoria 26, I-20133, Milan, Italy Tel +39–2–26605 204; Fax +39 2 2664551; e-mail sari@imiucca.csi.unimi.it, IT |
| |
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 the mutants isolated, gaMS-2 (gametophytic male sterile-2). A peculiar feature of the 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.
Received: 31 May 1996 / Revision accepted: 26 August 1996 |
| |
Keywords: | Maize Pollen Male sterility Gametophytic mutants |
本文献已被 SpringerLink 等数据库收录! |
|