The Indian Journal of Genetics and Plant Breeding
Year : 1992, Volume : 52, Issue : 2
First page : ( 144) Last page : ( 148)
Print ISSN : 0019-5200.

Identification and inheritance of a new dwarfing gene in pigeonpea

Gupta S. C., Kapoor R. K., Rao T. P., Ariyanayagam R. P.

Legumes Program, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502324.

Received:  10  September,  1991; Accepted:  14  October,  1991.

Abstract

A spontaneous dwarf (D₁₁) mutant was identified in an advanced line ICPL 146. In order to study inheritance of the dwarfness in D₁₁ and its allelic relationship to the D₁ dwarfing gene, D₁₁ was crossed with three tall lines (ICPL 146, ICPL 85024, ICPL 85037) and a D₁ dwarf (ICPL 85059) in 1986. The segregation patterns in F₁, F₂, backcrosses to both the parents and F₃ progenies suggested that D₁₁ dwarfness is governed by a single recessive gene in homozygous condition (t₅t₅). The genes in D₁₁ and D₁ were found to be nonal1elic.

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Keywords

Cajanus cajan, dwarf mutant, inheritance.

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