At3g08030 transcript: a molecular marker of seed ageing

Area of Science:

• Plant biology
• Molecular biology
• Seed science

Background:

• Seed viability decreases with prolonged storage, but deterioration rates vary.
• A potential molecular marker for seed ageing, At3g08030 mRNA, is identified.
• At3g08030 is a conserved cell-wall-associated protein specific to spermatophytes.

Purpose of the Study:

• To investigate At3g08030 mRNA as a molecular marker for seed ageing.
• To assess the correlation between At3g08030 expression and seed germination performance.
• To determine the applicability of At3g08030 as an age marker in different plant species.

Main Methods:

• RT-PCR and qRT-PCR were used to analyze At3g08030 expression in Arabidopsis thaliana seeds.
• Seeds were subjected to matrix priming and controlled deterioration (rapid ageing) treatments.
• Orthologues of At3g08030 were cloned and analyzed in Ceiba aesculifolia and Wigandia urens.

Main Results:

• At3g08030 gene transcript was detected throughout the Arabidopsis thaliana life cycle, including seeds at all stages.
• Matrix priming enhanced germination rates and increased At3g08030 expression in both control and aged seeds.
• In aged seeds of Arabidopsis thaliana, Ceiba aesculifolia, and Wigandia urens, the At3g08030 transcript was absent, correlating with reduced germination performance.

Conclusions:

• At3g08030 mRNA detection in dry seeds shows potential as a molecular marker for predicting germination performance.
• This marker is applicable across various plant species, aiding in seed quality assessment.
• The absence of At3g08030 mRNA in aged seeds signifies reduced viability.