Figure 6. Integration of genetic (A) and physical (B) map identified and mapped one robust SW-governing major Caq'SW1.1 QTL on 126.8 kb genomic region of desi chickpea chromosome 1. The marker-based comparative genome mapping revealed a high-degree of conserved collinear syntenic relationships of five candidate protein-coding desi genes annotated at this target genomic sequence interval with kabuli chickpea chromosome 1 (C) and Medicago chromosome 2 (D). A regulatory SNP (G/A) (Ca-II-SNP152) in a ERF TF gene showing strong linkage with Caq'SW1.1 QTL and conserved synteny with ERF orthologous genes annotated from kabuli chromosome 1 (C) and Medicago chromosome 2 (D), was selected as potential candidate for seed weight regulation in chickpea.

The genetic (cM)/physical (bp) distance and identity of the markers mapped on the chromosomes are indicated on the left and right side of the chromosomes, respectively. Red and blue dotted lines represent the gene- and marker-based syntenic relationships, respectively among desi and kabuli chickpea and Medicago chromosomes.