最新快讯：王海洋课题组在NG发表玉米遗传改良文章

联川生物刚刚获得的消息：华南农业大学王海洋课题组在Nature Genetics上发表了题为《Genome-wide selection and genetic improvement during modern maize breeding》的文章，该文章阐明了现代玉米自交系育种的遗传基础。

本文的三个重要内容分别是：

1.玉米现代育种过程中自交系的基因组变化；

2.玉米现代改良过程中自交系的表型变化及其遗传基础；

3.玉米现代育种过程中受选择基因和受选择遗传规律。

联川生物将第一时间为各位读者带来详细的文献解读。

另：联川生物有幸邀请到本文第一作者林泽川博士为大家带来文章详解的直播，一起聆听NG是如何炼成的。稍后我们将公布具体的直播信息。敬请期待！

文章摘要：

Since the development of single-hybrid maize breeding programs in the first half of the twentieth century, maize yields have increased over sevenfold and much of that can be attributed to tolerance of increased planting density. To explore the genomic basis underlying the dramatic yield increase in maize, we conducted a comprehensive analysis of the genomic and phenotypic changes associated with modern maize breeding through chronological sampling of 350 elite inbred lines representing multiple eras of germplasm from both China and the United States. We document several convergent phenotypic changes in both countries. Using genome-wide association and selection scan methods, we identify 160 loci underlying adaptive agronomic phenotypes and more than 1,800 genomic regions representing the targets of selection during modern breeding. This work demonstrates the use of the breeding-era approach for identifying breeding signatures and lays the foundation for future genomics-enabled maize breeding.

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