Pg. Martinez et al., Identification of an ETR1-homologue from mango fruit expressing during fruit ripening and wounding, J PLANT PHY, 158(1), 2001, pp. 101-108
We have isolated a mango (Mangifera indica L.) cDNA homologue of the ethyle
ne receptor gene ETR-1, referred to as METR1, which codes for a polypeptide
of 802 amino acids with a predicted molecular weight of 89 kDa. The amino
acid sequence is highly homologous lover 80%) to ETRs from other fruits. Ge
nomic Southern blot analysis indicates that two or more ETR homologues exis
t in mango. RNA blot analysis revealed that the level of METR1 mRNA in the
mesocarp increased during fruit ripening. in addition, it was round that th
e METR1 mRNA increases transiently during wounding of the tissue. This is t
he first report of an ETR homologue showing an induction during fruit ripen
ing and wounding.