Twelve polymorphic microsatellites in Oriental river prawn, Macrobrachium nipponense.

Area of Science:

• Aquatic biology
• Fisheries science
• Molecular genetics

Background:

• The Oriental river prawn (Macrobrachium nipponense) is a vital freshwater species in East Asia.
• Wild populations face endangerment due to extensive overfishing for consumption.
• Effective conservation strategies require understanding the genetic diversity of M. nipponense.

Purpose of the Study:

• To isolate and characterize microsatellite loci in Macrobrachium nipponense.
• To evaluate the utility of these loci for assessing genetic variation.
• To provide tools for managing and conserving prawn populations.

Main Methods:

• Isolation of 20 microsatellite loci from M. nipponense.
• Analysis of polymorphism and heterozygosity at 12 selected loci.
• Genotyping of 48 individuals to determine allele counts and heterozygosity levels.

Main Results:

• Twelve of the 20 isolated microsatellite loci were found to be polymorphic.
• Polymorphic loci exhibited 7 to 16 alleles.
• Expected heterozygosity ranged from 0.68 to 0.86, indicating substantial genetic variation.

Conclusions:

• The developed polymorphic microsatellite markers are effective for evaluating genetic diversity.
• These genetic tools are crucial for the conservation and sustainable management of Oriental river prawn.
• Further research can utilize these markers to study population structure and breeding programs.