The incongruent phylogenies of the genes studied suggest that horizontal gene transfer and recombination shape mesorhizobial populations in the genecenter of the host plants.
不同基因的系统发育树的不一致之处显示出在黄芪根瘤菌的进化过程中存在基因的水平传递和基因重组。
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The scientists in Africa are placing this proprietary gene inside drought-resistant corn developed by non-transgenic breeding techniques by a Mexico-based research center called CIMMYT.
"Most people when they turn 50 begin to look at forgetfulness with more seriousness," said Dr. Gene Cohen, the director of the Center for Aging, Health and Humanities at George Washington University.