In research on the population genetics of marine decapod crustaceans it is often assumed that planktonic larvae disperse widely and genetic markers are not strongly influenced by natural selection.
Although population genetic surveys often seem to corroborate these assumptions, some have revealed genetic differentiation among populations that lack discernable barriers to dispersal. These
cases, along with insights from related areas of investigation, suggest it may be time to revise our
thinking. We now know that dispersal of meroplanktonic larvae can be strongly limited by oceanographic processes and larval behavior. There is also evidence suggesting that directional selection
may be stronger in marine populations than previously thought. These new perspectives have important implications for decapod population genetics and phylogeography. This paper will review
the findings that have led to a revised view of larval dispersal and will examine natural selection as a
potential modifier of dispersal and influence on genetic population structure in decapod crustaceans.1 INTRODUCTION

Detecting and measuring genetic differentiation

Molecular cloning and characterization of a heat shock protein 70 gene in swimming crab (Portunus trituberculatus).

Single nucleotide polymorphisms in the actin and crustacean hyperglycemic hormone genes and their correlation with individual growth performance in giant freshwater prawn Macrobrachium rosenbergii

Three isoforms of anti-lipopolysaccharide factor identified from eyestalk cDNA library of swimming crab Portunus trituberculatus

Transcriptomic and morphological analyses of Litopenaeus vannamei intestinal barrier in response to Vibrio paraheamolyticus infection reveals immune response signatures and structural disruption.

The Hsp70 gene plays an important role in the animal immune response. In order to analyze the linkage between the genetic polymorphisms of Hsp70 and the virus-resistance trait of the shrimp, we detected SNPs in the coding region of Hsp70 by direct sequencing in 104 specimens of Litopenaeus vannamei from three shrimp populations (one TSV-resistance line and two TSV-susceptibility lines). Five SNPs were found including 661C/A, 712T/C, 782C/T, 892C/T, and 1090C/T in the fragment of Hsp70 (GenBank accession no. AY645906). There were significant difference of the allelic frequency of SNP 892C/T polymorphism between the TSV-resistance population and the two TSV-susceptibility populations (P < 0.001). A TSV-challenged test was performed to divide the shrimps into TSV-resistance group and TSV-susceptibility group. The 892C/T SNP genotypes of each shrimp sample were detected by pyro-sequencing. The allelic frequency of SNP 892C/T were significant difference between TSV-resistance group and TSV-susceptibil...

https://bioone.org/journals/Journal-of-Crustacean-Biology/volume-28/issue-4/08-3019.1/Analysis-of-Hsp70-in-Litopenaeus-vannamei-and-detection-of-SNPS/10.1651/08-3019.1.pdf

Analysis of Hsp70 in Litopenaeus vannamei and detection of SNPS

Genetic diversity of mitochondrial D‐LOOP sequences in the spotted scat (Scatophagus argus) from different geographical populations along the northern coast of the South China Sea

The yellowfin seabream, Acanthopagrus latus Houttuyn 1782, is a commercially and ecologically important species and a good model for studies of sexual differentiation. In this study, the complete m...

The complete mitochondrial genome of yellowfin seabream, Acanthopagrus latus (Percoiformes, Sparidae) from Beibu Bay.

The invention belongs to the field of microalgae cultivation, and relates to a culture medium formula and a full-artificial quick cultural method of Chaetoceros mulleri. The culture medium formula comprises 0.1-0.3g/L of urea, 0.05-0.1g/L of sodium hydrogen carbonate, 0.1-0.5g/L of sodium silicate hydrate crystals, 0.01-0.02g/L of potassium dihydrogen phosphate, 3-5g/L of EDTA (Ethylene Diamine Tetraacetic Acid), 1-5mg/L of VB1 and 1.0-3 microgram/L of VB12, wherein the solvent of the formula is seawater. The cultural method comprises the following steps: after disinfecting a culture tank and seawater, preparing a culture medium according to the formula by using seawater as the solvent; inoculating the algae to the culture tank filled by the culture medium; cultivating after sealing; illuminating by light with three primary colors and inflating air which is filtered by an air filter element with the aperture which is less than 0.1 micron during cultivation; and cultivating for 3-5 days and collecting. The culture medium formula provided by the invention is balanced in nutrition and low in cost; according to the cultural method, the chaetoceros mulleri grows quickly and the method is simple in process operation.

Culture medium formula and full-artificial quick cultural method of Chaetoceros mulleri

Ultra-low-temperature freezing preservation and activation method for Hong Kong oyster sperm

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