RT Journal Article
SR Electronic
A1 CHATTOPADHYAY, K.
A1 VIJAYAN, J.
A1 RAY, A.
A1 CHAKRABORTY, K.
A1 SARKAR, R.K.
T1 Special issue in honour of Prof. Reto J. Strasser - Additive main effect and digenic epistatic quantitative trait loci for chlorophyll fluorescence traits influencing salt tolerance at seedling stage in rice
JF Photosynthetica
YR 2020
VO 58
IS 2
SP 595
OP 607
DO 10.32615/ps.2020.008
UL https://ps.ueb.cas.cz/artkey/phs-202002-0041.php
AB In this investigation, an attempt was made to identify quantitative trait locus (QTL)/gene associated with JIP-test parameters in rice. Thirty main effect additive QTLs (M-QTLs) along with more than 500 digenic epistatic QTLs were detected using a backcross-derived population from tolerant genotype Pokkali (AC41585) and the susceptible counterpart IR64. These M-QTLs were located in almost all the chromosomes except chromosome number 6 and 8. Most of the M-QTLs showed pleiotropic effects. Positional similarity of all these overlapping additive and additive × additive interaction, QTLs indicated the substantial resemblance of the genetic basis of many JIP-test parameters which imparted salinity tolerance in rice at the seedling stage. Twenty-three potential functional genes were also delineated inside these additive QTLs regions. The identified putative QTLs for JIP-test parameters and probable functional genes lying therein are useful for imparting greater photosynthetic potential in rice under salt stress.