Breeder must be a specialist in discovering and utilizing key genes and creating new genotypes. Selecting and crossing parents and selecting good offspring are the key art in the breeding program.
育种学家必须是一个多面手，要善于发现和利用关键的基因及创造新的基因型，亲本选配和后代选育是关键艺术。
A new method for estimating heritability of quantitative characters using a group of true-breeding genotypes was developed.
本文提出了一种用纯合基因型估计数量性状遗传力的新方法。
It may provide a new idea for comprehending the pathogenesis of COPD with eh, and furthermore, to put forward the reasonable prevent and treatment for individual COPD with eh by genotypes.
从而为研究COPD合并EH的发病机制提供新的思路，为临床进一步制定合理的个体化预防和治疗方案提供基因分型的依据。
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