Association between quantitative morphological traits and RAPD molecular markers in pomegranate (Punica granatum L.)

Author:

Khadivi Ali1ORCID,Hosseini Akram‐Sadat1,Kashi Fatemeh2

Affiliation:

1. Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources Arak University Arak Iran

2. Arak University Arak Iran

Abstract

AbstractPomegranate (Punica granatum L.) is very important in terms of horticulture and food around the world. The present research aimed to identify the random amplified polymorphic DNA (RAPD) markers associated with morphological traits in pomegranate genotypes. Significant differences were observed among the studied genotypes based on the recorded traits. The 18 RAPD primers produced a total of 154 polymorphic fragments among genotypes. Using multiple regression analysis between each of the morphological traits and 154 RAPD polymorphic bands, RAPD markers associated with each of the morphological traits were identified. In total, 11 markers showed significant correlations with fruit weight, 9 markers with 100‐aril weight, 11 markers with anthocyanin, and 8 markers with total soluble solids. Some markers were associated with more than one morphological trait, showing that the association of a marker with more than one trait can be caused by the pleiotropic effects of quantitative trait loci related to each other in different traits. For instance, the BA6‐1 marker showed positive correlations with fruit weight, fruit crown width, and leaf length. Also, OPG13‐3 and BA6‐10 markers showed positive correlations with total soluble solids and anthocyanin content. The informative markers identified related to morphological characteristics in pomegranate can be a suitable guide to identify the genotypes with valuable fruit traits. Also, these markers can be used in selecting suitable parents for population generation for mapping purposes.

Publisher

Wiley

Subject

Food Science

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