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Studies on inheritance of resistance and allelic relationships for strain 2 of pigeonpea sterility mosaic pathogen
Author(s) -
SRINIVAS T.,
REDDY M V,
JAIN K C,
REDDY M S S
Publication year - 1997
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1997.tb05786.x
Subject(s) - biology , allele , sterility , genotype , genetics , dominance (genetics) , potyvirus , inheritance (genetic algorithm) , gene , virus , plant virus
Summary. Inheritance of resistance and allelic relationships were studied in three resistant pigeonpea sources for strain 2 of sterility mosaic pathogen. The resistant genotypes (ICP 7035, ICP 7349 and ICP 8850) were crossed with susceptible genotypes (BDN1 and LRG30) to determine the inheritance of resistance. The resistant and susceptible genotypes were also crossed among themselves to obtain information on their allelic relationships. Parents, F 1 and F 2 generations were sown in pots and screened using infector‐hedge technique. Observations in parents, F 1 and F 2 generations, indicated dominance of resistance in certain crosses and the dominance of susceptibility in others. Disease reaction appeared to be governed by two independent non‐allelic genes, with at least three multiple alleles, at one of the loci.