Soybean [Glycine max (L.) Merr.], an economically important dicot legume, is a member of the family Fabaceae and belongs to the genus Glycine Willd. Based on classical and molecular taxonomy, the genus Glycine has been divided into two subgenera; the subgenus Soja (Moench) F.J. Hermann includes soybean and its wild annual progenitor G. soja Sieb. & Zucc. Both species contain 2n = 40 chromosomes...

a Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China b Key Laboratory of Biogeography and Biodiversity, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China c Environment, Earth and Ecosystems, Centre for Earth, Planetary, Space and Astronomical Research, The Open University, United Kin...