In order to obtain guzmania SAMs( S-adenosylmethionine synthetase) genes sequence and know their function in ethylene biosynthesis pathway,based on full-length c DNA library constructed and batch EST sequencing in the early stage,we performed Primer Walking Sequencing to obtain two SAMs genes,named SAMs1 and SAMs2,respectively.SAMs1( Gen Bank: KF787113) c DNA is 1 375 bp in length,and has a 1 086 bp open reading frame that encode 361 AA amino acid residuals. SAMs2( Gen Bank: KF787114) is 1 235 bp and has a ...