Indian Society of Genetics & Plant Breeding

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Genetics of rust resistance in lentil (Lens culinaris Medik.)

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Inheritance of rust resistance in lentil was studied based
on analysis of 23 crosses involving 8 resistant and 10
susceptible genotypes. The crosses were made in three
possible combinations, viz., resistant x susceptible,
resistant x resistant and susceptible x susceptible types.
The F2 segregation analysis of 14 out of 15 crosses
involving resistant x susceptible parents revealed that
resistance was governed by a single dominant gene. The
F2 analysis of the cross Lens 4076 x DPL 21, revealed
that resistance in the variety DPL 21 was under monogenic
recessive control. Analysis of three crosses involving only
resistant parents indicated that genotype Precoz has a
dominant gene for resistance at different locus to that of
Pant L 4. The crosses among susceptible parents revealed
susceptibility as noncomplementative. The gene symbol
Urf, has been proposed for rust resistance in the genotypes
Precoz and Lens 4603 and urlJ. in the varieties Pant L 4
and Lens 4147. The gene symbol ur6 Urf3 has been
proposed in variety DPL 21, where resistance was conferred
by monogenic recessive gene
 

Keywords: Lentil, inheritance, rust resistance, gene symbols.

Info

Year: 2001
Volume: 61
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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