Mariner-like transposases are widespread and diverse in flowering plants.

摘要: Complete and partial sequences of mariner-like elements (MLEs) have been reported for hundreds species animals, but only two identified in plants. On the basis these plant MLEs several related by database searches, plant-specific degenerate primers were derived used to amplify a conserved region MLE transposase genes from variety genomes. Positive products obtained 6 dicots 31 monocots 54 tested. Phylogenetic analysis 68 distinct 25 grass is consistent with vertical transmission rapid diversification multiple lineages transposases. Surprisingly, evolution grasses was accompanied repeated independent acquisition introns localized gene.