Genetic linkages of anthocyanin pigmentation with seed phenotype and root architecture with yield contributing traits, detected in edible pea ( Pisum sativum L.)

摘要

Genetic diversity and trait correlation in pea germplasm is useful for plant breeding programs, which helps toselect genetic material. Based on anthocyanin pigmentation (presence/absence), 24 pea competent lines weresegregated into two major lineages. These lineages were sub-divided into 4 clusters based on seed shape andseed coat coloration. Similarly, the strong genetic linkage was detected in root morphological characters withyield contributing traits. The trait association was confirmed through cluster analysis, scattered plots, KruskalWallis test and Person’s correlation. The results found that root length is positive and significant correlated withplant height and 100 seed weight. Likewise, the number of lateral roots showed genetic linkage with number ofpod plant-1, pod weight plant-1, grain yield plant-1 and total biomass. Similarly, root biomass showed geneticlinkage with 100 seed weight and plant height. While, root phenotype (15 and 30 days old plant) not showedsignificant correlation with the number of branch plant-1 and number of seed pod-1.