Structure and evolution analysis of pollen receptor-like kinase in Zea mays and Arabidopsis thaliana
64 and 73 putative pollen RLKs chosen from maize and Arabidopsis can be divided into 8 subfamilies. Expansion of pollen RLKs were mainly caused by segmental duplication. Maize might have experienced weaker purifying selection as compare to Arabidopsis. Duplication events of Arabidopsis and maize are between 1869 million years and 0.67170 million years ago, respectively.
pollen rlks phylogenetic evolution gene duplication