Indian Society of Genetics & Plant Breeding

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HISTOLOGICAL AND HISTOCHEMICAL CAUSES OF MALE STERILITY IN TWO CYTOPLASMIC-CENIC MALE STERILE LINES OF RICE (ORYZA SATIVA L.)

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Histological and histochemical changes during microsporogenesis were studied in the
CMS anthers of V20A and Pragathi A rices and their maintainers. Both the CMS lines
differed from their respective maintainers in post-meiotic stages only. The tapetal and
endothecial abnormalities were the main histological causes of male sterility in both CMS
lines. The CMS anthers had lower insoluble polysaccharides, proteins and RNA content
than their maintainer counterparts.
 

Keywords: Histological, histochemical, male sterility, tapetum, endothecium.

Info

Year: 1995
Volume: 55
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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