inbreeding depression

Reduced vigor or " inbreeding depression " is not an invariable consequence of inbreeding.

降低生活力或 “ 近亲繁殖的衰退 ” 并不是近亲繁殖必然的后果.

The genetic basis of inbreeding depression cannot be explained by means of simple model.

近交衰退的遗传基础,不能以简单的模式来说明.

The average heterosis of F2 over mid-parent based on population mean was-1.99% to 1.11% for all these traits. It suggests that little inbreeding depression exists for F2 and F3 seeds.

按群体平均数计算，这些性状F2的中亲优势仅为－1.99%～1.11%，这揭示出F2、F3近交衰退很少。

Detail analysis suggests that the inbreeding depression might occur during the period of seeding and adult stage or of flowering and seed filled stage.

分析表明近交衰退发生在幼苗至成熟之间，也可能在开花与结实期。

The high intrapopulation variation and low interpopulation differentiation could explained that the different populations might originate from the same one and genetic drift or inbreeding depression had not influenced primary process of genetic diversity.

四合木种群较高的遗传多样性和极低的种群间分化，说明不同的种群可能有共同的起源，随机遗传漂变和近交衰退不是影响遗传多样性的主要过程。

Inbreeding depression may result.

可能引起近宗繁殖缺陷的产生.