title: Isolation and characterization of polymorphic microsatellite loci in the swimming crab Portunus trituberculatus (Portunidae).
abstract: The Swimming crab Portunus trituberculatus (Portunidae) is an important economically food species. To provide molecular markers for P. trituberculatus, we isolated and characterized polymorphic microsatellite markers. We developed a 5'-anchored genomic library of P. trituberculatus DNA, and derived 45 positive clones. We designed 30 pairs of primers from the sequences of these clones, and 10 of which were polymorphic. The loci were screened in 31 P. trituberculatus individuals; the number of alleles ranged from 2 to 5. The observed heterozygosity ranged from 0.20 to 0.49 and the expected heterozygosity ranged from 0.50 to 0.78. The polymorphism information content per locus ranged from 0.37 to 0.75. These polymorphic microsatellite markers may provide some useful information for the population genetic studies of swimming crab and other Portunus species.
authors.affiliation: Laboratory for Marine Living Resources and Molecular Engineering, College of Marine Science, Zhejiang Ocean University, Zhoushan, China.
authors.forename: L P
authors.initials: LP
authors.lastname: Ren
authors.forename: Y
authors.initials: Y
authors.lastname: Qin
authors.forename: X C
authors.initials: XC
authors.lastname: Li
authors.forename: Y N
authors.initials: YN
authors.lastname: Sun
authors.forename: R X
authors.initials: RX
authors.lastname: Wang
mesh_terms: D000483:Alleles; D000818:Animals; D003386:Brachyura / Q000235:genetics*; D005819:Genetic Markers; D015698:Genomic Library; D006579:Heterozygote; D018895:Microsatellite Repeats; D011110:Polymorphism, Genetic
chemical_list: D005819:Genetic Markers