Plant Genetics and Molecular BreedingPedro Martínez-Gómez The development of new plant varieties is a long and tedious process involving the generation of large seedling populations for the selection of the best individuals. While the ability of breeders to generate large populations is almost unlimited, the selection of these seedlings is the main factor limiting the generation of new cultivars. Molecular studies for the development of marker-assisted selection (MAS) strategies are particularly useful when the evaluation of the character is expensive, time-consuming, or with long juvenile periods. The papers published in the Special Issue “Plant Genetics and Molecular Breeding” report highly novel results and testable new models for the integrative analysis of genetic (phenotyping and transmission of agronomic characters), physiology (flowering, ripening, organ development), genomic (DNA regions responsible for the different agronomic characters), transcriptomic (gene expression analysis of the characters), proteomic (proteins and enzymes involved in the expression of the characters), metabolomic (secondary metabolites), and epigenetic (DNA methylation and histone modifications) approaches for the development of new MAS strategies. These molecular approaches together with an increasingly accurate phenotyping will facilitate the breeding of new climate-resilient varieties resistant to abiotic and biotic stress, with suitable productivity and quality, to extend the adaptation and viability of the current varieties. |
Common terms and phrases
abiotic stress AfSPL14 allele amino acid amylose anther anthocyanin AP2/ERF Arabidopsis thaliana Biol biosynthesis Brassica breeding buds candidate genes cDNA Chen China chromosome cloning CmWUS crop CrossRef CrossRef][PubMed cultivars cytoplasmic male sterility cZR3 DEGs detected drought stress encodes endosperm enzyme expression analysis expression levels expression patterns Figure floral flowering function gene expression genetic genome genotypes Ghd7 grain yield identified interaction leaf male sterility mapping markers metabolism molecular motif MTAs mutant napus nitrogen nutrient overexpression pathway phenotypic Plant Cell Plant Physiol Plant Sci pollen primers promoter protein PubMed qRT-PCR QTLs quantitative quantitative trait loci regulation resistance response rice Oryza sativa RNA-seq RrGT2 salt stress samples ScWRKY3 seed seedlings sequence significantly species stage starch sugarcane tapetum tolerance traits transcription factor transcriptome transgenic lines transgenic plants vector Wang wild-type WRKY Zhang Zhao