Inheritance and allelic relationships of genes governing resistance to the whitebacked planthopper, Sogatella furcifera (Hovarth), in some rice varieties
Date
12-1979
Abstract
The mode of inheritance of resistance to the whitebacked plant-hopper, Sogatella furcifera (Horvath) and the allelic relationships of the genes for resistance in 21 rice varities were studied. Test for resistance was done under greenhouse conditions utilizing the bulk seedling test and using the second and third instar nymphs of the planthopper.
The study of F1, F2 and F3 generations of the crosses of the 21 resistant varieties with susceptible variety Taichung Native 1 (TN1) revealed that a single dominant gene governs resistance in Mushkan 41, Santhi, Siahnakidar 195, SM2-34, Tirisurkh 251, Zirijowaian 245,18,24A,39,76S,78,180,213B,267,293,CI 6037-4,NP 97,S39 JKW and Bansphul. In varieties 65 and 274A, however, resistance is governed by one dominant and one recessive gene.
The allelic relationships of the genes for resistance to the earlier known genes Wbph 1 and Wbph 2 were determined. Reactions of the F2 and F3 progenies from crosses of test varieties with N 22 revealed that the dominant gene presnet in al the test varieties is the same as Wbph 1 gene reported in N 22. Further studies are required to determine the allelic relationships of the recessive genes found in varieties 65 and 274A.
Document Type
Dissertation
Degree
Doctor of Philosophy in Agronomy
College
Graduate School (GS)
Adviser/Committee Chair
Dr. T. M. Masajo
Committee Member
Dr. D. B. Lapis, Dr. E. A. Heinrichs, Dr. G. S. Khush
Language
English
LC Subject
Whitebacked planthopper, Rice--Diseases and pests
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 996 1979 A42 N35
Recommended Citation
Nair, R. Velayudhan, "Inheritance and allelic relationships of genes governing resistance to the whitebacked planthopper, Sogatella furcifera (Hovarth), in some rice varieties" (1979). Graduate Student's Output. 3324.
https://www.ukdr.uplb.edu.ph/etd-grad/3324
Notes
Doctor of Philosophy (Agronomy)