Proportion of individuals carrying B chromosomes (prevalence).

Proportion of individuals carrying B chromosomes (prevalence) in three species of fish genus Characidium. The B-carrying population in each species is indicated in Table 1. χ2 = Yates's corrected contingency chi square test comparing the frequency of B-carrying (B+) and B-lacking (B−) females and males.Proportion of individuals carrying B chromosomes (prevalence).本数据集涵盖溪脂鲤属（Characidium）3个鱼类物种中携带B染色体（B chromosomes）的个体占比（携带率，prevalence）。各物种内携带B染色体的种群信息详见表1。本研究采用耶茨校正列联卡方检验（Yates's corrected contingency chi square test），对比携带B染色体（B+）与不携带B染色体（B−）的雌性、雄性个体的频率。携带B染色体的个体占比（携带率，prevalence）。