Paralogue Interference Affects the Dynamics after Gene Duplication

Area of Science:

• Genetics
• Molecular Biology
• Evolutionary Biology

Background:

• Proteins often form homomeric complexes of identical subunits for function.
• These subunits are typically encoded by a single genetic locus.
• Gene duplication can lead to coexpressed paralogues that interact, causing paralogue interference.

Purpose of the Study:

• To explore the role of paralogue interference in shaping the evolutionary trajectory of duplicated genes.
• To illustrate how paralogue interference can mediate the coevolution of gene duplicates.

Main Methods:

• This opinion article reviews existing literature and recent studies.
• It focuses on the theoretical implications of paralogue interference on gene evolution.

Main Results:

• Paralogue interference can create an extended window for selection on duplicated genes.
• This prolonged selection increases opportunities for mutation accumulation and functional diversification.
• Paralogue interference can facilitate the coevolution of duplicated genes.

Conclusions:

• Paralogue interference is a significant evolutionary mechanism following gene duplication.
• It provides a pathway for duplicates to acquire new properties and potentially diverge.
• Understanding paralogue interference is key to comprehending gene family evolution.