Investigating the physiological responses of Pacific white shrimp to acute cold-stress.

Background: is one of the most important aquaculture shrimps in the world and low temperatures present a serious challenge to its survival, growth, and distribution.

Methods: To investigate their physiological responses during acute cold-stress, were treated under acute cooling conditions from 28 to 13 °C with a cooling rate of 2.5 °C/2 h and were maintained at 13 °C for 12 h.

Phosphomannose isomerase affects the key enzymes of glycolysis and sucrose metabolism in transgenic sugarcane overexpressing the gene.

Sugarcane is one of the most important crops cultivated for the production of sugar and ethanol. In our previous studies, an innovative positive selection system for obtaining transgenic sugarcane, which utilized the -derived gene as the selectable marker and mannose as the selective agent, was developed and patented in China. In this paper, the influence of phosphomannose isomerase (PMI) overexpression on the key enzymes of both glycolysis and sucrose metabolism was investigated in transgenic sugarcane through the gene.

Population genetic diversity of the northern snakehead (Channa argus) in China based on the mitochondrial DNA control region and adjacent regions sequences.

Genetic variation and population structure of northern snakehead (Channa argus) from eight locations in China were investigated using mitochondrial DNA control region and adjacent regions sequences. Sequence analysis showed that there were 105 haplotypes in 260 individuals, 48 unique haplotypes and 57 shared haplotypes, but no common haplotype shared by all populations. As a whole, the haplotype diversity was high (h=0.

Molecular phylogenetic relationships of family Haemulidae (Perciformes: Percoidei) and the related species based on mitochondrial and nuclear genes.

Haemulidae species are morphologically diversified fishes with wondrous and changeable coloration. These species are prevalent in global tropical, subtropical, and temperate inshore reef areas. Previous morphological classification within Haemulidae and some related families was problematic, and no comprehensive molecular evaluation was conducted on these groups.