Phosphoproteomic analysis of distylous Turnera subulata identifies pathways related to endoreduplication that correlate with reciprocal herkogamy.

Autor: Henning PM; Center for Genomic Science Innovation, University of Wisconsin-Madison, 425 Henry Mall, Madison, 53706, Wisconsin, USA., Minkoff BB; Center for Genomic Science Innovation, University of Wisconsin-Madison, 425 Henry Mall, Madison, 53706, Wisconsin, USA., Sussman MR; Center for Genomic Science Innovation, University of Wisconsin-Madison, 425 Henry Mall, Madison, 53706, Wisconsin, USA.; Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, 53706, Wisconsin, USA.
Jazyk: angličtina
Zdroj: American journal of botany [Am J Bot] 2024 Dec; Vol. 111 (12), pp. e16438. Date of Electronic Publication: 2024 Nov 17.
DOI: 10.1002/ajb2.16438
Abstrakt: Premise: A multi-omic approach was used to explore proteins and networks hypothetically important for establishing filament dimorphisms in heterostylous Turnera subulata (Sm.) as an exploratory method to identify genes for future empirical research.
Methods: Mass spectrometry (MS) was used to identify differentially expressed proteins and differentially phosphorylated peptides in the developing filaments between the L- and S-morphs. RNAseq was used to generate a co-expression network of the developing filaments, MS data were mapped to the co-expression network to identify hypothetical relationships between the S-gene responsible for filament dimorphisms and differentially expressed proteins.
Results: Mapping all MS identified proteins to a co-expression network of the S-morph's developing filaments identified several clusters containing SPH1 and other differentially expressed or phosphorylated proteins. Co-expression analysis clustered CDKG2, a protein that induces endoreduplication, and SPH1-suggesting a shared biological function. MS analysis suggests that the protein is present and phosphorylated only in the S-morph, and thus active only in the S-morph. A series of CDKG2 regulators, including ATM1, and cell cycle regulators also correlated with the presence of reciprocal herkogamy, supporting our interest in the protein.
Conclusions: This work has built a foundation for future empirical work, specifically supporting the role of CDKG2 and ATM1 in promoting filament elongation in response to SPH1 perception.
(© 2024 The Author(s). American Journal of Botany published by Wiley Periodicals LLC on behalf of Botanical Society of America.)
Databáze: MEDLINE
Externí odkaz: