马氏珠母贝不同地理种群内自繁和种群间杂交子一代形态性状参数及相关性分析

比较分析了马氏珠母贝不同地理种群内自繁产生的3个子一代群体(BB1、DD1、SS1)和不同地理种群间杂交产生的3个子一代群体(BD1、BS1、DS1)的11个形态性状、壳厚指数、壳重指数和肥满度。壳厚、壳重、总体重和绞合线深与壳长幂值之间的相关关系非常显著，壳宽和绞合线长与壳长对数值之间的相关关系非常显著。为解决我国海水珍珠养殖存在的主要问题，提出了我国马氏珠母贝选育的目标应该是提高生长速度和抗病力，兼顾提高珍珠的质量。壳长、总体重和壳重应该在马氏珠母贝选育过程中作为指示生长速度的主要形态性状指标。

Morphological trait parameters and their correlations of the first generation from matings and crosses of geographical populations of Pinctada martensii (Dunker)

morphological traits, shell thickness indexes ,shell weight indexes and condition factors of individuals of the first generation from matings and crosses of geographically different populations of Pinctada martensii (Dunker) were ananlyzed. Correlations of shell thickness,shell weight , total weight and hinge width with power value of shell length were highly significant. Correlations of shell width and hinge length with logarithmic value of shell length also appeared highly significant.The shell length,total weight and shell weight could be chosen as morphological indicatiors of growth rate in selective breeding. Growth rate and resistance to diseases could be used as major genetic traits for the selection in the breeding of P. martensii (Dunker).