Significant Parent-of-Origin Effects for Seed, Cotyledon, and Early Plant Growth Traits in Cucumber

Parent-of-origin effects have long been recognized and exploited in plant breeding genetic studies. These can be conferred by preferential expression of an allele from one parent, organellar effects, or altered organellar-nuclear interaction. The goal this work was to evaluate parent-of-origin on seed, cotyledon, early growth traits cucumber using a full eight-by-eight diallel crossing two doubled haploids (DHs) extracted each four populations. Significant general combining ability (GCA), specific (SCA), reciprocal were observed for all traits, direction magnitude DH rather than population specific. Transcriptome analyses hybrids with without significant revealed that different pathways associated the differences. findings are consistent DH-specific nature abilities across Because hybrid-combination specific, breeders should generate both improved hybrid development.