Unravelling the details of range expansion and ecological dominance shifts of insect pests
has been challenging due to the lack of basic knowledge about population structure, gene
flow, and most importantly, how natural selection is affecting the adaptive process.
Piezodous guildinii is an emerging pest of soybean in the southern region of the United
States, and increasingly important in Brazil in recent years. However, the reasons P. guildinii
is gradually becoming more of a problem are questions still mostly unanswered. Here, we …