Genetic Analysis of Drought Resistance in Rice by Molecular Markers
Association between Secondary Traits and Field Performance
R. Chandra Babu*,a,
Bay D. Nguyenb,f,
Varapong Chamarerkb,
P. Shanmugasundarama,
P. Chezhiana,
P. Jeyaprakashc,
S. K. Ganesha,
A. Palchamyc,
S. Sadasivama,
S. Sarkarungd,
L. J. Wadee and
Henry T. Nguyenb,f
a Center for Plant Molecular Biology, Tamil Nadu Agrl. University, Coimbatore-641 003, India
b Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA
c Agricultural Research Station, Paramakudi, India
d International Rice Research Institute, Chatuchak, Bangkok 10900, Thailand
e University of Western Australia, 35, Stirling Highway, Crawley, WA 6009
f Department of Agronomy, University of Missouri, Columbia, MO 65211, USA
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Fig. 1. Frequency distribution for leaf relative water content, plant height and number of grains per panicle under water stress in the CT9993 x IR62266 DH lines in trial 1.
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Fig. 2. The molecular genetic linkage map of rice based on 154 doubled-haploid lines derived from a cross, CT9993-5-10-1-M x IR62266-42-6-2. Chromosome numbers are indicated above each chromosome. Distances are given in Kosambi centimorgans. The letters before the numbers in the marker names indicate the category of mapped clones as follows: RM, rice microsatellites; EM and ME, AFLPs; other letters, RFLPs. The positions of QTL are indicated by vertical bars beside chromosomes. The bar length is drawn to be equal to the length as detected for the QTL in the QTLMapper software.
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Copyright © 2003 by the Crop Science Society of America.
