Indian Society of Genetics & Plant Breeding

Identification of green leafhopper [Nephotettix virescens (Distant.)] resistance genes in rice

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The genetics of resistance to green leafhopper, [Nephotettix
(Distant.)] was studied in four pre-release green
leafhopper resistant rice varieties
viz., lET 12356 (RP 2432-
98-6-3), lET 13268 (HKR 91-102), lET 15359 (SPT 6858),
lET 15120 (CRM 47). The parental lines, F1s and F2
populations derived from the crosses of resistant varieties
with the susceptible variety, TN1 or Phalguna or Sona
and inter crosses among resistant varieties were screened
against Indian population of green leafhopper in
greenhouse at Directorate of Rice Research, Hyderabad.
The inheritance of resistance suggested that two dominant
complementary genes governed resistance in lET 13268,
a single recessive gene in lET 15359, two recessive genes
in lET 15120 and a single dominant gene in lET 12356.
The single dominant gene of lET 12356 was allelic to
6 in IR 64.  

Keywords: Rice, insects, green leafhopper, resistance genes, inheritance, allele tests


Year: 2007
Volume: 67
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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