Indian Society of Genetics & Plant Breeding

Inheritance and chromosomal location of flecking in a mutant C591(M8) of wheat (Triticum aestivum L.)

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Genetic analysis of data in F2 generation derived from the
cross NP852/C591(M8) and NP846/C591(M8) revealed that
flecking in mutant C591(M8) of Triticum aestivum L. is
controlled by a single dominant gene. The mutant
C591(M8) was also crossed with individual monosomic
lines of Chinese Spring and monosomic F1 plants were
cytologically identified. The F2 plants derived from
individual monosomic F
1s were scored for the presence
of flecking. No critical line could be identified as several
lines deviated from expected Mendelian ratio. Considering
the peculiar characteristics of the mutation, which
resembled the disease lesion mimic mutations reported
in other crops such as maize, this indeed is a mutation in
hexaploid wheat. The gene symbol Flk is proposed for
flecking (= lesion mimic) in the mutant line C591(M8). The
flecking mutant will serve as a useful genetic marker.

Keywords: Bread wheat, flecking, disease lesion mimic mutant, inheritance, chromosomal location


Year: 2008
Volume: 68
Issue: 2
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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