A molecular marker of seed ageing

A molecular marker of seed ageing

A molecu­lar marker of seed ageing

Prolonged stor­age gen­er­ally reduces seed viab­il­ity and vigour, although the rate of deteri­or­a­tion var­ies among spe­cies and envir­on­mental con­di­tions. Garza-Caligaris et al. find that expres­sion of the DUF642 gene At3g08030 in Arabidopsis thali­ana is greatly enhanced in primed seeds whilst low levels of tran­script are found in seeds sub­ject to con­trolled deteri­or­a­tion. They clone At3g08030 in two wild spe­cies, Ceiba aes­culi­fo­lia and Wigandia urens, and find the tran­script to be present in recently shed seeds but not in aged ones. They there­fore pro­pose that At3g08030 mRNA detec­tion in a dry seed lot has poten­tial for use as a molecu­lar marker for ger­min­a­tion per­form­ance in a vari­ety of plant species.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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