Here, we performed a quantitative trait loci (QTL) analysis to understand the genetic control of quantitative agronomic traits in garden asparagus. Take-away message:
- Two major QTLs for number of stalk and earliness were mapped in a genomic region that spans 3.25 Mb and includes the sex-determination locus on chromosome 1.
- Some QTLs for branching height and earliness were detected in a bin that spans 4.96 Mb on chromosome 5.
- Functional annotation of genes within the two genomic regions revealed candidate genes with potential roles in SA and light signaling and photomorphogenesis pathways that may be involved in branching and/or tillering.
Figure1. A. Distribution of recombination frequency between bins along chromosome 1 of A. officinalis. B. Map bins. C. Fluorescence in situ hybridization (FISH) with rDNA 5s probe on chromosome 1.
If you use any of those resources for your research, please cite:
Garcia V, Castro P, Die JV, Millan T, Gil J, Moreno R. (2023) QTL Analysis of Morpho-Agronomic Traits in Garden Asparagus (Asparagus officinalis L.). Horticulturae 2023, 9(1), 41; doi: 10.3390/horticulturae9010041