Abstract: A method for breeding a fresh-eating waxy corn variety with sweet taste is provided, relates to the technical field of fresh-eating waxy corns. According to the method, a waxy corn cultivar is hybridized with a supersweet waxy homozygous double-recessive backbone self-line to obtain a waxy corn self-line with sweet taste A, and the waxy corn self-line with sweet taste A and a waxy corn backbone self-line are performed with hybridization group to obtain the fresh-eating waxy corn variety with sweet taste. The breeding method can create an excellent waxy self-line with sweet taste having high seed germination rate, good plant agronomic traits, strong resistance and high sugar content in kernels. The sugar content and taste quality of the bred waxy corn with sweet taste are significantly improved and the harvest period is much longer, which is suitable for fresh-eating and quick-freezing processing.

Abstract: The present disclosure provides a genome-wide maize SNP array and use thereof. In the present disclosure, by means of large-scale sequencing mining, aiming at the problems of the existing high-density arrays of maize, 400 broadly representative maize inbred lines inside and outside of China are deeply sequenced to mine excellent loci therefrom, and research results of six maize arrays are integrated; by adopting the steps of biological information data analysis, locus basic parameter evaluation, probe design evaluation, a set of SNP locus combination, containing 1,536 loci, is formed, and genotyping is realized on an Affymetrix axiom platform. The genome-wide maize SNP array of the present disclosure contains probes for the 1,536 SNP loci. The array of the present disclosure can be used in DNA fingerprint construction, cultivar identification and confirmation of maize cultivars, research on germplasm resources at a genomic level, and molecular marker-assisted selective breeding.