Environmental stress and transposons in plants

Area of Science:

• Genetics
• Molecular Biology
• Plant Science

Background:

• Transposons, once dismissed as 'junk DNA', are now recognized for their significant roles in gene regulation and evolution.
• These mobile genetic elements are present in all organisms and have undergone extensive activation and amplification throughout evolutionary history.

Approach:

• This review focuses on the activation of transposons by environmental stress, with a specific emphasis on plants.
• It examines the mechanisms underlying transposon activation in response to various environmental challenges.

Key Points:

• Plants exhibit diverse responses to environmental stress, often involving the activation of numerous transposons.
• The activation of transposons by environmental stress influences gene expression and organismal adaptation.
• Understanding transposon dynamics under stress is crucial for comprehending plant survival and evolutionary trajectories.

Conclusions:

• Environmental stress is a key factor in transposon activation in plants.
• Transposon activity significantly impacts host plant responses to environmental challenges and evolutionary adaptation.