Open AccessMapping QTLs controlling the biosynthesis of maltose in soybean
Author(s) -
Priyamvada Jha,
Vineet Kumar,
Anita Rani,
Anil Kumar
Publication year - 2021
Publication title -
romanian biotechnological letters
Language(s) - English
Resource type - Journals
eISSN - 2248-3942
pISSN - 1224-5984
DOI - 10.25083/rbl/26.5/2936.2941
Subject(s) - maltose , population , biology , quantitative trait locus , genotyping , sugar , genetics , genotype , gene , biochemistry , sucrose , medicine , environmental health
The present study was carried out to identify genomic regions associated with maltose in 2 F2 populations through assessment of sugars using HPLC and genotyping using SSR markers across the genome. SSR markers, Sat_216 (chr 12) and Satt681 (chr 6) in F2 population I and Sat_105 (chr 20) in F2 population II showed significant (P< 0.5) association with maltose content through single marker analysis (SMA) with LOD score of 3.18 (R2 =9.7), 2.54 (R2 =6.8), and 3.54 (R2 =10.4), respectively. Composite interval mapping analysis (CIM) let to identify different QTLs (other than SMA) for maltose content on chr 11, chr 13 and chr 17 in F2 population I while chr 6 and chr15 in F2 population II. QTLs identified for maltose content are in proximity of known functional genes responsible for degradation of starch into maltose. QTLs identified for maltose in the study may be deployed for improving efficiency of marker assisted breeding for development of soybean genotypes with high levels of this sugar.