Identification of Genomic Regions and Candidate Genes for Litter Traits in French Large White Pigs Using Genome-Wide Association Studies.

The reproductive traits of sows are one of the important economic traits in pig production, and their performance directly affects the economic benefits of the entire pig industry. In this study, a total of 895 French Large White pigs were genotyped by GeneSeek Porcine 50K SNP Beadchip and four phenotypic traits of 1407 pigs were recorded, including total number born (TNB), number born alive (NBA), number healthy piglets (NHP) and litter weight born alive (LWB). To identify genomic regions and genes for these traits, we used two approaches: a single-locus genome-wide association study (GWAS) and a single-step GWAS (ssGWAS).

Medical resource preparation and allocation for humanitarian assistance based on module organization.

Background: This research aims to associate the allocation of medical resources with the function of the modular organization and the possible needs for humanitarian assistance missions.

Methods: The overseas humanitarian medical assistance mission, which was sent after a disaster on the hospital ship Peace Ark, part of China's People's Liberation Army (PLA) Navy, was considered as study model. The cases used for clustering and matching sample formation were randomly selected from the existing information related to Peace Ark's mission.

Chronotype and a PERIOD3 variable number tandem repeat polymorphism in Han Chinese pilots.

An association has been determined between variable number tandem-repeat (VNTR) polymorphisms in the PERIOD3 gene (PER3, rs57875989) and chronotype. An association has been found in which the longer PER3(5) allele is correlated with diurnal preference and shorter PER3(4) allele is linked with preference for evening, respectively. In this study, we explored the genotype frequency and relationship to the chronotype of a PER3 VNTR polymorphism in Han Chinese pilots compared to other populations to further develop aviation safety research.