Genetic diversity is known to be correlated to fitness traits, and inbred individuals often display lower values for life history traits. In this study, we attempt to quantify how inbreeding affects such traits in the terrestrial isopod Armadillidium vulgare by performing inbred and non‐inbred crosses under laboratory conditions. We estimated genetic characteristics of parents and offspring, and related them to fecundity and fertility measures, as well as offspring growth and survival. Our study shows that a decrease in offspring number might result from mortality around birth, but not to changes in fecundity, fertilization rate, or developmental failure between inbred and non‐inbred crosses. More heterozygous females tended to be bigger and had a higher fecundity, which could have implications in mate choice. No effect of inbreeding was detected on offspring growth and survival. These results can be related to previously observed effects of genetic characteristics on mating strategies in A. vulgare, and could shed light on mechanisms of inbreeding avoidance in this species.

中文翻译：

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在寻常型犰狳中生产后代：遗传多样性和近交的影响。

已知遗传多样性与适应性状相关，近交个体通常显示出较低的生活史特征值。在这项研究中，我们试图量化近亲繁殖对陆生等足类犰狳（Armadillidium v​​ulgare）中此类特征的影响通过在实验室条件下进行近交和非近交杂交。我们估算了父母和后代的遗传特征，并将其与生育力和生育率指标以及后代的生长和存活联系起来。我们的研究表明，后代数量的减少可能是由于出生前后的死亡率造成的，而不是由于近交和非近交杂交种的繁殖力，受精率或发育失败所致。杂合子较多的雌性往往较大，繁殖力较高，这可能对配偶的选择有影响。没有发现近交对后代生长和存活的影响。这些结果可能与以前观察到的遗传特性对普通农杆菌交配策略的影响有关。，并可能阐明该物种的近交回避机制。