To date,most genetic progress for quantita-tive traits in livestock has been made by selec-tion on phenotype or on estimates of breedingvalues(BBV)derived from phenotype,withoutknowledge of the number of genes that affect thetrait or the effects of each gene.In this quantita-tive genetic approach to genetic improvement,the genetic architecture of traits of interest hasessentially been treated as a‘black box’.De-spite this,the substantial rates of genetic im-provement that have been and continue to be a-chie...
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机译:Do Regional Integration Plans Promote Joint Prevention and Control of Air Pollution? - Lessons from China’s Major City Clusters =区域一体化进程带给大气污染联防联控的契机和挑战 - 基于中国国家级城市群发展的研究