Marker-trait association analysis for weight of first and second fleshy root in 126 diverse lines of aconitum carmichaelii / 中草药

ABSTRACT

Objective To identify molecular markers associated with weight of fleshy root of Aconitum carmichaelii, and provide technologic basis to A. carmichaelii breeding. Methods The marker-trait association (MTA) analysis for the weight of first and second fleshy root was conducted in association mapping panel comprised 126 diverse lines based on 280 AFLP loci. Results The population structure analysis of all lines conducted using STRUCTURE indicated that the likely number of subgroups was 2 based on the change in k. A total of 19 loci were identified to associate with 0.87%-6.69% of phenotypic variance for objective trait. The loci of P1M1-27, P3M3-30, and P1M1-20 were identified under all analysis modes of GLM, MLM, GLM + K, and GLM + Q. Conclusion These loci should be compatible to marker assistance selection during A. carmichaelii breeding.