DArTseq molecular markers associated with the piping leaf margin phenotype in pineapple (Ananas comosus L.)

Abstract This study sought to understand the genetic basis of piping leaf margin phenotype in pineapple. To achieve this aim, a genome-wide association (GWAS) using mixed linear regression and logistic analysis was conducted on three pineapple diversity panels including seedling populations segregating for spiny, spiny-tip margins. identified single nucleotide polymorphism (SNP) markers associated with phenotypes. A broad quantitative trait locus (QTL) positioned chromosome 23 between positions 240,475 2,369,197 bp most highly all analyses. Major candidate genes proposed are Zinc finger protein 2, 3, WUSCHEL-related homeobox 1 CONSTANS-like. Some other lower association, linked or nearby interest, also considered potentially involved varying degrees. All known be aspects stem cell maintenance, proliferation, epidermal differentiation, organogenesis, polarity, wall modification hormone signalling. It is possible each plays role either differentiation morphological expected relative gene might vary background.