Multiple horizontal gene transfer events have shaped plant glycosyl hydrolase diversity and function
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- Federal University of Minas Gerais (UFMG) (Brazil). Institute of Biological Sciences (ICB)
- Michigan State Univ., East Lansing, MI (United States)
- Federal University of Minas Gerais (UFMG) (Brazil). Institute of Biological Sciences (ICB); Michigan State Univ., East Lansing, MI (United States)
Plant glycosyl hydrolases (GHs) play a crucial role in selectively breaking down carbohydrates and glycoconjugates during various cellular processes, such as reserve mobilization, pathogen defense, and modification/disassembly of the cell wall. In this study, we examined the distribution of GH genes in the Archaeplastida supergroup, which encompasses red algae, glaucophytes, and green plants. We identified that the GH repertoire expanded from a few tens of genes in early archaeplastidians to over 400 genes in modern angiosperms, spanning 40 GH families in land plants. Our findings reveal that major evolutionary transitions were accompanied by significant changes in the GH repertoire. Specifically, we identified at least 23 GH families acquired by green plants through multiple horizontal gene transfer events, primarily from bacteria and fungi. We found a significant shift in the subcellular localization of GH activity during green plant evolution, with a marked increase in extracellular-targeted GH proteins associated with the diversification of plant cell wall polysaccharides and defense mechanisms against pathogens. In conclusion, our study sheds light on the macroevolutionary processes that have shaped the GH repertoire in plants, highlighting the acquisition of GH families through horizontal transfer and the role of GHs in plant adaptation and defense mechanisms.
- Research Organization:
- Chicago Office, Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); Great Lakes Bioenergy Research Center; Instituto Serrapilheira; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; AgBioResearch, Michigan State University
- Grant/Contract Number:
- FG02-91ER20021; SC0018409; FG02-91ER20021
- OSTI ID:
- 2569084
- Alternate ID(s):
- OSTI ID: 2326140
- Journal Information:
- New Phytologist, Journal Name: New Phytologist Journal Issue: 2 Vol. 242; ISSN 0028-646X; ISSN 1469-8137
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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