STUDY OF INHERITANCE OF FUSARIUM WILT RESISTANCE THROUGH MOLECULAR MARKER ANALYSIS IN PIGEONPEA [CAJANUS CAJAN (L.) MILLSP]

Article Id: ARCC871 | Page : 212 - 216
Citation :- STUDY OF INHERITANCE OF FUSARIUM WILT RESISTANCE THROUGH MOLECULAR MARKER ANALYSIS IN PIGEONPEA [CAJANUS CAJAN (L.) MILLSP].Legume Research-An International Journal.2011.(34):212 - 216
B. Krishna Chaithanya, L. Prasanthi, K. Hariprasad Reddy and B.V. Bhaskara Reddy
Address : Department of Genetics and Plant Breeding S.V. Agricultural College, Tirupati - 517 502, India.

Abstract

The inheritance studies in F2 progenies of two crosses of pigeonpea LRG-41 X ICPL-8863 and TRG-22 X ICPL-87119 for Fusarium wilt resistance by using SCAR14f/r marker revealed that the inheritance was governed by a single dominant gene. All the resistant plants showed the amplification 937bp band and absent in susceptible plants which segregates in the ratio of 3 resistant : 1 susceptible and thus confirming that the disease was controlled by a single dominant gene. These marker studies for two crosses indicated that the same gene in both resistant parents, ICPL-87119 and ICPL-8863 governs the resistance. Quick assessment of susceptibility or resistance to wilt at early crop stage will be possible with this SCAR14f/r marker, and it will eliminate the need for maintaining virulent isolates of the wilt pathogen and development of sick plots for artificial screening techniques.

Keywords

Interetence Fusarurm Wilt Resistance Pigeonpea Moleculer Marker.

References

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