Due to the complexity of tetrasomic inheritance, most (five) genetic maps of M. sativa have been constructed in diploids, and three genetic maps have been constructed in tetraploid populations.

• 由于复杂的四体遗传特性，目前已构建成功的苜蓿遗传图谱大多数是二倍体苜蓿，四倍体栽培苜蓿遗传图谱较少。