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Title: Green Algal Models for Multicellularity
The repeated evolution of multicellularity across the tree of life has profoundly affected the ecology and evolution of nearly all life on Earth. Many of these origins were in different groups of photosynthetic eukaryotes, or algae. Here, we review the evolution and genetics of multicellularity in several groups of green algae, which include the closest relatives of land plants. These include millimeter-scale, motile spheroids of up to 50,000 cells in the volvocine algae; decimeter-scale seaweeds in the genus Ulva (sea lettuce); and very plantlike, meter-scale freshwater algae in the genus Chara (stoneworts). We also describe algae in the genus Caulerpa, which are giant, multinucleate, morphologically complex single cells. In each case, we review the life cycle, phylogeny, and genetics of traits relevant to the evolution of multicellularity, and genetic and genomic resources available for the group in question. Finally, we suggest routes toward developing these groups as model organisms for the evolution of multicellularity.  more » « less
Award ID(s):
1755430
PAR ID:
10347934
Author(s) / Creator(s):
;
Date Published:
Journal Name:
Annual Review of Genetics
Volume:
55
Issue:
1
ISSN:
0066-4197
Page Range / eLocation ID:
603 to 632
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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