Indian Society of Genetics & Plant Breeding

Inheritance of fusarium wilt resistance in pigeonpea [Cajanus cajan (L.) Millspaugh]

Published on

Fusarium wilt caused by Fusarium udum Butler is the most
important disease of pigeonpea worldwide. Objectives of
this study were to determine the mode of genetic
inheritance of Fusarium wilt resistance in different
pigeonpea accessions and to determine different genes
governing resistance that exists in pigeonpea accessions.
F1, F2 and backcross populations were developed by
crossing resistant accessions (ICEAP 00554, ICEAP 00557)
with susceptible accessions (KAT 60/8, ICP 7035). The
Parents, F1, F2, backcrosses (BC1F1 and BC2F1) populations
were evaluated for Fusarium wilt resistance. F2populations
derived from ICEAP 00554 × KAT 60/8, ICEAP 00557 × KAT
60/8, ICEAP 00554 × ICP 7035, ICEAP 00557 × ICP 7035
crosses exhibited a 3:1 ratio which indicated that
resistance to Fusarium wilt was under the control of major
gene, however, a recessive gene was detected from ICP
7035 × KAT 60/8 cross. The genes detected could be
valuable for wilt resistance breeding.

Keywords: Pigeon pea, Fusarium udum, isolate


Year: 2010
Volume: 70
Issue: 3
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


James O. Owuoche info_circle
S. N. Silim info_circle

Download PDF