Maize adaptation to temperate climate: relationship between population structure and polymorphism in the Dwarf8 gene.

Maize adaptation to temperate climate: relationship with population structure and polymorphism in the Dwarf8 gene

Patterns of molecular evolution associated with two selective sweeps in the Tb1-Dwarf8 region in maize.

We focused on a region encompassing a major maize domestication locus, Tb1, and a locus involved in the flowering time variation, Dwarf8 (D8), to investigate the consequences of two closely linked selective sweeps on nucleotide variation and gain some insights into maize geographical diffusion, through climate adaptation. First, we physically mapped D8 at approximately 300 kb 3' of Tb1. Second,...

Association of the whole blood potassium polymorphism with resistant to saline in two sheep breeds of different climates of Iran

Abstract The whole blood potassium concentration has shown the bimodal distribution in sheep, which has been classified into LK and HK types; HK allele is recessive to LK with a single gene inheritance. This polymorphism showed different behavior in different environment, which could be due to adaptation process. This research was conducted on the Zel and kermani breed research station, which...

Adaptation of Maize to Temperate Climates: Mid-Density Genome-Wide Association Genetics and Diversity Patterns Reveal Key Genomic Regions, with a Major Contribution of the Vgt2 (ZCN8) Locus

The migration of maize from tropical to temperate climates was accompanied by a dramatic evolution in flowering time. To gain insight into the genetic architecture of this adaptive trait, we conducted a 50K SNP-based genome-wide association and diversity investigation on a panel of tropical and temperate American and European representatives. Eighteen genomic regions were associated with flower...

Evaluation of adaptation and grain yield stability of durum wheat (Triticum turgidum L.) genotypes in temperate agro-climate zone of Iran

Identification of adapted genotypes with high grain yield is the most important goal in durum wheat breeding programs. To study adaptation and grain yield stability of durum wheat genotypes, 18 durum wheat promising lines with two commercial durum and bread wheat cultivars were used. The durum wheat genotypes were evaluated in four locations; Isfahan, Karaj, Kermanshah and Neishabour in tempera...