Emergence of Glucomannan β-Galactosyltransferase Activity in Plants
Author Information
Author(s): Ishida Konan, Penner Matthew, Fukushima Kenji, Yoshimi Yoshihisa, Wilson Louis F L, Echevarría-Poza Alberto, Yu Li, Dupree Paul
Primary Institution: University of Cambridge
Hypothesis
The study investigates the evolutionary acquisition of mannan β-galactosyltransferase (MBGT) activity in asterids and rosids.
Conclusion
The study identifies a tomato MBGT that is distinct from the known MBGT in Arabidopsis, suggesting convergent evolution of this enzyme in different plant lineages.
Supporting Evidence
- The tomato MBGT identified is located in a different subclade than the known MBGT in Arabidopsis.
- Phylogenetic analysis suggests that the MBGT activity has been acquired convergently among asterids and rosids.
- The study highlights the importance of MBGT-dependent disaccharide side chains for β-GGM functions.
Takeaway
Scientists found a new enzyme in tomatoes that helps make a special sugar in plants, showing that different plants can develop similar tools in their own way.
Methodology
The study involved screening candidate MBGT genes from the tomato genome, functional testing of encoded proteins, and phylogenetic analysis.
Digital Object Identifier (DOI)
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