Molecular Breeding

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Directional improvement of traits

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性状定向改良
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The direct selection of favorable genotypes using tight linkage, intragenic or functional SNP markers is mainly used for the selection of qualitative traits controlled by one or a few genes or simple quantitative traits controlled by Major QTLs.

 

For a serious defect of excellent lines or varieties, the backcross directional improvement of the improvement goal can be achieved by integrating 1-2 major genes, reducing at least 3 backcross generations and greatly accelerating the pace of directional improvement.

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