1. Deciduous broad-leaved trees showed great self-fertilization capacity owing to plenty of litter under than and its rapid decomposition rate. 落叶阔叶树种由于凋落物丰富、分解速率快,而具有显著的自肥能力;
2. Inbreeding depression is the decrease of offspring fitness after inbreeding and is one of the primary forces selecting against the evolution of self-fertilization. 近交衰退指近交个体的适合度相对下降的现象,它是近亲繁殖的主要障碍。
3. Therefore, it should be emphasized to enhance the self - fertilization capability of forest by adjusting the species composition and increasing the proportion of native broad - leaved species. 因此,应重视通过调整物种组成,增加阔叶树种比例以增强森林的自肥能力。
4. Conclusion Self-mitochondria transfer can improve embryos' quality and pregnancy rate without influence on fertilization rate. 结论自体颗粒细胞线粒体移植可明显改善胚胎发育质量,提高妊娠率。