【摘要】 采用平衡巢式设计通过建立8个半同胞家系和32个全同胞家系,估算了虾夷扇贝(Patinopecten yessoensis Jay)养殖群体的遗传力。1日龄幼虫壳长、壳高的遗传力为0.521±0.104和0.307±0.097,10日龄幼虫壳长、壳高的遗传力为0.307±0.074和0.311±0.075;20日龄幼虫壳长、壳高的遗传力为0.336±0.079和0.314±0.075;40日龄稚贝壳长、壳高的遗传力为0.318±0.081和0.280±0.075;60日龄稚贝壳长、壳高的遗传力为0.383±0.091和0.423±0.097;500日龄成贝的壳长、壳高、壳宽、全湿质量的遗传力分别为0.375±0.096、0.358±0.094、0.513±0.116、0.420±0.103。结果表明,与其他贝类相比,虾夷扇贝壳长、壳高、全湿质量等性状的遗传力为中等大小。更多还原

【Abstract】 Eight half-sib families and thirty two full-sib families were obtained by a nested design of each male mating with four females.Heritability for shell length and shell height was 0.521±0.104 and 0.307±0.097 on day 1,0.307±0.074 and 0.311±0.075 on day 10,0.336±0.079 and 0.314±0.075 on day 20,and 0.318±0.081 and 0.280±0.075 on day 40,0.383±0.091 and 0.423±0.097 on day 60.Heritability for production traits including shell length,shell height,shell width,and total weight at harvest on day 500 was 0.375±0.096,0.358±0.094,0.513±0.116,0.420±0.103,respectively.Compared with other shellfish,heritability for production traits including shell length,shell height,shell width,and total weight of Patinopecten yessoensis Jay was of medium size.更多还原