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The objective of the study was to understand the genetic basis of eight traits conferring grain appearance and yield in a recombinant inbred line (RIL8) derived from a cross between cultivated Indica rice varieties Dexiang074B and Pujiang6. We conducted whole genome re‐sequencing for the two parental lines and genotyping by sequencing (GBS) for the RIL8 population. Next, we aligned the clean reads to the rice genome Nipponbare IRGSP 1.0, constructed the genetic linkage map (GLM), and performed the quantitative trait loci (QTL) analysis. In total, 2631 high‐quality markers were generated for 315 RIL8 samples. We identified a rice GLM containing 12 linkage groups (total map distance: 1946.71 cM; average map distance: 0.74 cM) and 98 QTLs related to the rice yield, including 31 high credible QTLs. In addition, 39 QTLs were identified to be associated with the G*E interaction. While most of the QTLs were co‐localized with previously reported rice QTLs, some novel QTLs were identified for the first time in this study. These findings provide a genetic basis for developing cultivated rice with good economic characteristics based on molecular breeding technologies.

Sphingomonas carotinifaciens strain L9-754T (DSM 27347) is a gram-negative, chemoheterotrophic, and rod-shaped endophyte isolated from the stem tissues of Jatropha curcas L. This strain has putative in vitro antagonistic ability against the plant pathogenic fungus Magnaporthe grisea. A draft genome of L9-754T was obtained using the PacBio SMRT cell platform. By analyzing the genome of strain L9-754T, a gene cluster (GQR91_18700 - GQR91_18715) related to an antioxidant enzyme was identified in the obtained draft genome. The information obtained from the draft genome is expected to reveal the putative properties helpful in biocontrol applications.

Objectives Achromobacter spanius is a newly described, non-fermenting, Gram-negative, coccoid pathogen isolated from human blood. Whole-genome sequencing of the A. spanius type strain was performed to investigate the mechanism of pathogenesis of this strain at a genomic level. Methods The complete genome of A. spanius type strain DSM 23806T was sequenced using single-molecule real-time (SMRT) DNA sequencing. Results The complete genome of DSM 23806T consists of one circular DNA chromosome of 6 425 783 bp with a G + C content of 64.26%. The entire genome contains 5804 predicted coding sequences (CDS) and 55 tRNAs. Genomic island (GI) analysis showed that this strain encodes several important pathogenesis- and resistance-related genes. Conclusions These results strongly suggest that GIs provide some fitness advantages in A. spanius type strain DSM 23806T. This report provides an extensive understanding of A. spanius at a genomic level as well as an understanding of the evolution of A. spanius.

Achromobacter spanius is a newly described, non-fermenting, Gram-negative, coccoid pathogen isolated from human blood. Whole-genome sequencing of the A. spanius type strain was performed to investigate the mechanism of pathogenesis of this strain at a genomic level.The complete genome of A. spanius type strain DSM 23806The complete genome of DSM 23806These results strongly suggest that GIs provide some fitness advantages in A. spanius type strain DSM 23806

The genetic distances among 18 cytoplasmic male sterile lines and 11 restorer lines were analyzed with molecular markers derived from yield-related functional genes. The correlation between parental genetic distance and heterosis was investigated by analyzing the performance of 47 combinations. The results showed that the genetic distance was significantly correlated with yield heterosis (r=0.29*), but not significantly correlated with heterosis for other traits, such as number of effective panicles per plant, seed setting rate, 1000-grain weight, number of grains per panicle and theoretical yield. However, the correlation coefficient was so small that the parental genetic distance could not to be used to predict heterosis.