Inheritance of sterility mosaic disease resistance to Bangalore and Patancheru isolates in pigeonpea (Cajanus cajan (L.) Millsp.)

Gnanesh, B N and Ganapathy, K N and Ajay, B C and Byregowda, M (2011) Inheritance of sterility mosaic disease resistance to Bangalore and Patancheru isolates in pigeonpea (Cajanus cajan (L.) Millsp.). Electronic Journal of Plant Breeding, 2 (2). pp. 218-223.

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Sterility mosaic disease (SMD), is an important biotic constraint in pigeonpea (Cajanus cajan (L.) Millsp.) in Indian subcontinent. It is caused by a virus and transmitted by eriophyid mites, Aceria cajani Channabasavanna. A comprehensive study of variability in the sterility mosaic pathogen revealed the occurrence of five different isolates in India. Amongst them, three distinct isolates have been characterised, viz., Bangalore, Patancheru and Coimbatore. Studies were conducted at Bangalore and Patancheru to determine the inheritance of resistance to Bangalore and Patancheru isolates of the SMD involving a resistant (ICP 7035) and susceptible (TTB 7) genotypes. Observations in parents, F indicated dominance of susceptibility over resistance. The disease reaction of the individual F 2 plant derived F 3 1 families for Patancheru isolate was controlled by two genes with dominance epistasis and for Bangalore isolate, absence of resistant plants indicate action of two or more genes in controlling resistance to SMD.

Item Type: Article
Agro Tags: <b>Agrotags</b> - diseases | planting | isolation | equipment | social groups | genes | genetics | grain legumes | symptoms | genotypes <br><b>Fishtags</b> - NOT-AVAILABLE<br><b>Geopoliticaltags</b> - india | andhra pradesh
Subjects: Mandate crops > Pigeonpea
Depositing User: Siva Shankar
Date Deposited: 08 Jul 2011 01:44
Last Modified: 08 Jul 2011 01:46
Official URL:
Funders: Government of India - Department of Biotechnology
Acknowledgement: The Authors are thankful to Department of Biotechnology (DBT), India, for financial support to undertake this study. Thanks are also due to Dr Rajeev K Varshney and Dr Varsha Wesley of the ICRISAT, Patancheru, Andhra Pradesh, India for providing the SMD screening facilities for carrying out research.
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