“…Deviation of HWE occurred in 12 loci, which might be caused by the existence of null alleles, since 8 of the 12 loci were detected to have probable null alleles (ssE19, ssE25, ssE34, ssE36, ssE37, ssE39, ssE40 and ssE43). Ten loci presented potential null alleles, which might due to the existence of mutations in primer annealing sites (Callen et al., ); similar frequency of null alleles has also been reported in other cyprinids such as Paraqianlabeo lineatus (6 of 21 loci; Li et al., ) and Megalobrama pellegrini (5 of 15 loci; Luo et al., ). In addition, given the declining resource of S. sinensis in the Hongze Lake (Lin et al., ), other factors including non‐random mating, inbreeding and genetic drift may also be causations for null alleles as well as HWE deviation and LD (Hou, Zhang, Wu, Zhang, & Song, ).…”