%0 Journal Article
%@ 2320 – 7051
%A Saritha, A
%A Srivastava, R K
%A Reddy, N
%A Katiyar, P
%A Dangi, K S
%D 2017
%F icrisat:10458
%I Vital Biotech, India
%J International Journal of Pure & Applied Bioscience
%K Downy Mildew, Pathogen, Hybrid, Genetic Linkage, Pearl Millet, QTLs
%N 5
%P 1625-1631
%T Mapping Host Plant Resistance Qtls against Three Virulent Isolates of Downy Mildew PathogenIn Pearl Millet (Pennisetum glaucum [L.] R. Br.)
%U http://oar.icrisat.org/10458/
%V 5
%X Downy mildew (DM) epidemics have repeatedly caused huge grain and straw production losses  on pearl millet single-cross hybrids in India. The present study was undertaken to identify the  QTL positions controlling DMR on the linkage map for a pearl millet mapping population of 295  F7 RIL population derived from a single F1 plant from plant × plant cross 81 B-P13  (susceptible) × AIMP 92901-P03 (resistant) using three isolates of the pathogen from Gujarat,  Haryana and Rajasthan. A skeleton genetic linkage map of 536.8 cM (Haldane) was constructed  using MapMaker/Exp version 3.0b at LOD threshold value of 3.0 using 39 scorable polymorphic  loci. A total of four major DMR QTLs were identified on linkage groups of 1,3 and 4. The  inheritance of of these QTLs showed AIMP 92901-P03 providing the resistant alleles. At least  one DMR QTL was detected and mapped for each of the three DM isolates. After validation,  marker-assisted selection (MAS) can now be used for improving DMR of elite pearl millet hybrid  parental lines using polymorphic flanking markers from donor parent AIMP 92901-P03.
%Z Saritha thanks Acharya N.G. Ranga Agricultural University (ANGRAU) for financial help in the form of stipend during the course of work.