Polymorphic microsatellite loci isolated from the Squalidus argentatus using PCR-Based Isolation of Microsatellite Arrays (PIMA).
Squalidus argentatus (Sauvage and Dabry de Thiersant 1874) is a small-sized freshwater fish which is distributed in Mainland China, Hainan Island and Taiwan. The populations of S. argentatus have dropped sharply probably due to overharvesting and water pollution recently. Eleven polymorphic microsatellite markers were developed for the cyprinid fish S. argentatus. These new markers were tested on 43 individuals collected from Yangtze River and Qiantang River. The number of alleles, observed and expected heterozygosity per locus, in two populations ranged from 3 to 14, from 0.333 to 0.954 and from 0.480 to 0.928, respectively. Only two loci are significantly deviated from Hardy-Weinberg expectations due to the heterozygote deficiency. No significant linkage disequilibrium was detected between the pairwise comparisons of these loci. These polymorphic microsatellite loci will enable us to study the genetic variation, population structure, and conservation genetics of this species in the future.
Laboratory of Fishes, Shanghai Ocean University, Shanghai, 201306, China; E-Mails:  sunyang_zhuiyi@163.com  (Y.S.);  wqtang@shou.edu.cn  (W.-Q.T.);  zzliu@shou.edu.cn  (Z.-Z.L);  dliu@shou.edu.cn  (D.L.).
Yang
Y
Sun
Hung-Du
HD
Lin
Wen-Qiao
WQ
Tang
Yu-Min
YM
Ju
Zhi-Zhi
ZZ
Liu
Dong
D
Liu
Jin-Quan
JQ
Yang
D000483:Alleles; D000818:Animals; D002681:China; D003530:Cyprinidae / Q000235:genetics*; D005787:Gene Frequency; D056426:Genetic Loci / Q000235:genetics*; D005838:Genotype; D015810:Linkage Disequilibrium; D018895:Microsatellite Repeats / Q000235:genetics*; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D016133:Polymerase Chain Reaction / Q000379:methods*; D011110:Polymorphism, Genetic; D045483:Rivers