The tepary bean genome provides insight into evolution and domestication under heat stress

Tepary bean (Phaseolus acutifolis A. Gray), native to the Sonoran Desert,
is highly adapted to heat and drought. It is a sister species of common
bean (Phaseolus vulgaris L.), the most important legume protein source for
direct human consumption, and whose production is threatened by climate
change. Analysis of the tepary genome revealed mechanisms for resilience
to moderate heat stress and a reduced disease resistance gene repertoire,
consistent with adaptation to arid, hot environments. Extensive
collinearity and shared gene content among these Phaseolus species will
facilitate engineering climate adaptation in common bean, a key food
security crop, and accelerate tepary bean improvement.