Indian Society of Genetics & Plant Breeding

Important

UNREDUCED MICROSPORES IN CASSAVA, MANIHOT ESCULENTA CRANTZ CLONES

Published on

Nine indigenous Costa Rican cultivars of cassava were studied cytogenetically to detect
unreduced microspores. Out of these nine clones, four showed about 1"I. triads among the
tetrads 1-1.3%. One of them also showed 3.7% diads. The meiotic study revealed presence
of sectorial chimera in one of these clones. This is the first report of sectorial chimera in
cassava. This chimera formed two paralIel sectors in the inflorescence, where sedor had
regular chromosome pairing, and the other sector showed predominant chromosome
asynapsis.
 

Keywords: Microsporogenesis, ploidy levels, chimera cassava.

Info

Year: 1994
Volume: 54
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle

Download PDF