02450nas a2200265   4500008004100000022001400041245015000055210006900205260009000274300001200364490000700376520141200383653001901795653004001814653002601854653001601880100002001896700002401916700002301940700001901963700003101982700002202013700001702035856013202052       2012                        eng d  a0733-521000aKernel morphometric traits in hexaploid wheat (Triticum aestivum L.) are modulated by intricate QTL x QTL and genotype x environment interactions0 aKernel morphometric traits in hexaploid wheat Triticum aestivum   a24-28 OVAL RD, LONDON NW1 7DX, ENGLANDbACADEMIC PRESS LTD- ELSEVIER SCIENCE LTDcSEP  a432-4390 v563 a<p>Wheat kernel size and shape influence its flour yield and market price. A hexaploid wheat population of 185 recombinant inbred lines was evaluated for five kernel morphometric traits namely, 1000-kernel weight, kernel length, width, length width ratio and factor form density in two diverse agro-climatic regions in India in five to eight year location combinations. Additive main effects and multiplicative interaction analysis revealed significant contributions from genotype (G) and genotype x environment (G x E) effects for these traits. Quantitative trait locus (QTL) analysis by composite interval mapping (CIM) was performed using a linkage map of 251 SSR markers and 59 QTLs distributed on 16 chromosomes were identified. The majority of the QTLs were located on the D genome (44.07%) and the homeologous chromosomes of Group 2 (38.98%). Stable QTLs detected in three or more year location combinations were identified for four traits. Multi-trait CIM showed 10 chromosomal regions harboring putative pleiotropic loci. Complexity in the genetic effects was further revealed by QTL analysis based on mixed-linear model that indicated 19 QTLs with significant individual effects (main-effect QTLs) and 14 QTL x QTL interactions. Five of these - nineteen main-effect QTLs and one of the fourteen QTL x QTL interactions showed environmental influence. (c) 2012 Elsevier Ltd. All rights reserved.</p>10aEpistatic QTLs10aGenotype x environment interactions10aKernel size and shape10aStable QTLs1 aPrashant, Ramya1 aKadoo, Narendra, Y.1 aDesale, Charushila1 aKore, Prajakta1 aDhaliwal, Harcharan, Singh1 aChhuneja, Parveen1 aGupta, Vidya  uhttps://library.ncl.res.in/content/kernel-morphometric-traits-hexaploid-wheat-triticum-aestivum-l-are-modulated-intricate-qtl-0