Tracking the evolutionary innovations of plant terrestrialization

Area of Science:

• Evolutionary Biology
• Genomics
• Plant Science

Background:

• The transition of algae to land is a key event in plant evolution.
• Recent high-quality genome sequencing of key Charophyta algae and hornworts provides new resources.
• Horizontal gene transfer (HGT) from microbes is implicated in plant terrestrialization.

Purpose of the Study:

• To review advancements in plant and algal genomics.
• To propose future research directions for understanding plant terrestrialization and evolution.
• To highlight the importance of HGT, multicellularity, and environmental factors in plant evolution.

Main Methods:

• Review of recent high-quality reference genomes of Charophyta algae and hornworts.
• Critical analysis of existing knowledge on plant genome evolution.
• Identification of prospective research areas based on current genomic data.

Main Results:

• Genomic data supports the role of HGT in early plant evolution.
• Identified gaps in understanding viral HGT, multicellularity, and environmental influences.
• Highlighted the need for interdisciplinary research combining biology, computer science, and ecology.

Conclusions:

• Future research should investigate the role of viruses in plant HGT.
• Further study is needed on the mechanisms driving multicellularity in Streptophyta.
• Quantitative links between genetic innovations and environmental variables are crucial for macroevolutionary studies and climate change impact modeling.