We have generated an ultra-high-density genetic map for lettuce, an economically important member of the Compositae, consisting of 12,842 unigenes (13,943 markers) mapped in 3696 genetic bins distributed over nine chromosomal linkage groups. Genomic DNA was hybridized to a custom Affymetrix oligonucleotide array containing 6.4 million features representing 35,628 unigenes of Lactuca spp. Segreg...

Mineral nutrient malnutrition, particularly deficiency in zinc and iron, afflicts over 3 billion people worldwide. Biofortification of food crops is the best approach for conciliating the micronutrient deficiencies. Understanding the genetic basis of their accumulation is the preconditions for enhancing of these micronutrients. In our study, a mapping population of a set of 118 recombinant inbr...

Wheat (Triticum aestivum L.) fl our ash content and color are very important properties of fl our quality, because they greatly affect the quality of the fi nal product. Quantitative trait loci (QTL) infl uencing fl our color and milling properties of hard red spring wheat were mapped on a genetic linkage map comprised of 531 simple sequence repeats (SSRs) and Diversity Arrays Technology (DArT)...

Wheat (Triticum aestivum L.) cultivars with long coleoptiles can be sown deeply for better seedling establishment in drought environments. A population of 139 recombinant inbred lines (RILs) from a cross between a long-coleoptile Chinese landrace, Wangshuibai, and shortcoleoptile U.S. wheat cultivar, Wheaton, were characterized for coleoptile length and plant height. Heritabilities for coleopti...

Reduced temperatures during germination adversely affect rice (Oryza sativa L.) production. Little is known, however, of the genes or genetic loci involved. Here, QTLs were investigated in a recombinant inbred line (RIL) resulting from 02428 (japonica)-YZX (indica) cross. The phenotypes cultivars differ significantly when exposed to low germination. Mapping with high-density bin map identified ...

The large genome and allohexaploidy of common wheat have complicated construction of a high-density genetic map. Although improvements in the throughput of next-generation sequencing (NGS) technologies have made it possible to obtain a large amount of genotyping data for an entire mapping population by direct sequencing, including hexaploid wheat, a significant number of missing data points are...