“…Phylogenetic analysis indicated that all putative legume cyclins were classified into ten types (A-, B-,C-, D-, H-, L-, T-, U-, SDS-, and J18-types), sharing the same types with Arabidopsis , whereas the D-type was the largest clade in the legume species, and the CycB-like types, including CycBL;1-8, were specific to Medicago, lacking any clear homologues in Arabidopsis , common bean and soybean. Likewise, F-type cyclins, lacking clear homologues in Arabidopsis , were unique to rice, and Q- and Z-types were defined as new putative types of poplar cyclin genes [ 19 , 20 ]. D-, CycJ18-, T-, SDS-, and U-type cyclins are not specific to Arabidopsis but are also present in other plants [ 15 ].…”