Exogenous transcription factors alter the patterns of condensed tannin accumulation in Lotus corniculatus
Condensed tannins (CT) are secondary metabolites useful in forage legumes to prevent protein degradation and ruminal bloating.The synthesis and accumulation of such compound is limited to seed coat in alfalfa and clover.Conversely, accumulation of CT in leaves occurs in some Lotus species and few other minor legumes.Understanding the genetic mechanism of CT synthesis and accumulation is the prerequisite to transfer the trait into the most important forage legumes.To this aim L.corniculatus plants polymorphic for CT accumulation in leaves were transformed with an anthocyanin activator bH L H transcription factor from maize (Sn) and a flavonoid repressor MYB transcription factor from Fragaria vesca (FaMYBI).Here we report phenotypical effect of transformation and alteration in the expression of late genes of the pathway (DFR, LAR, ANR) previously characterised in our lab (Paolocci et al., 1999;2007).
genetic transformation bHLH transcription factors MYB transcription factors
Arcioni S Damiani F Paolocci F
Consiglio Nazionale delle Ricerche-Istituto Genetica Vegetale,via Madonna Alta 130,06128 Perugia,Italy
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）