%O This research work was supported by CGIAR Research Program
on Grain Legumes.
%K Molecular Mapping, Chickpea, Earliness, Flowering time, Chickpea, Consensus map, QTLs, QTL analysis
%A B P Mallikarjuna
%A S Samineni
%A M Thudi
%A S Sajja
%A A W Khan
%A A Patil
%A K P Viswanatha
%A R K Varshney
%A P M Gaur
%I Frontiers Media
%V 8
%L icrisat10082
%J Frontiers in Plant Science
%N 1140
%P 1-10
%R 10.3389/fpls.2017.01140
%D 2017
%X Flowering time is an important trait for adaptation and productivity of chickpea in the arid and the semi-arid environments. This study was conducted for molecular mapping of genes/quantitative trait loci (QTLs) controlling flowering time in chickpea using F2 populations derived from four crosses (ICCV 96029 × CDC Frontier, ICC 5810 × CDC Frontier, BGD 132 × CDC Frontier and ICC 16641 × CDC Frontier). Genetic studies revealed monogenic control of flowering time in the crosses ICCV 96029 × CDC Frontier, BGD 132 × CDC Frontier and ICC 16641 × CDC Frontier, while digenic control with complementary gene action in ICC 5810 × CDC Frontier. The intraspecific genetic maps developed from these crosses consisted 75, 75, 68 and 67 markers spanning 248.8 cM, 331.4 cM, 311.1 cM and 385.1 cM, respectively. A consensus map spanning 363.8 cM with 109 loci was constructed by integrating four genetic maps. Major QTLs corresponding to flowering time genes efl-1 from ICCV 96029, efl-3 from BGD 132 and efl-4 from ICC 16641 were mapped on CaLG04, CaLG08 and CaLG06, respectively. The QTLs and linked markers identified in this study can be used in marker-assisted breeding for developing early maturing chickpea.
%T Molecular Mapping of Flowering Time Major Genes and QTLs in Chickpea (Cicer arietinum L.)