Floral homeotic gen expression defines developmental arrest stages in Brassica oleraceae L. vars. botrytis and italica

adn amino acids arabidopsis biological development brassica oleracea botrytis brassica oleracea italica dna fenotipos fleur floraison induite flores flowers gene expression histologie homeotic mutation induced flowering meristemas meristems mutation nucleotide sequence organogenese organogenesis phenotypes plant tissues tejidos vegetales