Phylogenetic analysis of the expansion of the MATH-BTB gene family in the grasses

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Abstract

MATH -BTB proteins are known to act as substrate-specific adaptors of cullin3 (CUL3)-based ubiquitin E3 ligases to target protein for ubiquitination. In a previous study we reported the presence of 31 MATH-BTB genes in the maize genome and determined the regulatory role of the MATH -BTB protein MA B1 during meiosis to mitosis transition. In contrast to maize, there are only 6 homologous genes in the model plant Arabidopsis, while this family has largely expanded in grasses. Here, we report a phylogenetic analysis of the MATH-BTB gene family in 9 land plant species including various mosses, eudicots, and grasses. We extend a previous classification of the plant MATH-BTB family and additionally arrange the expanded group into 5 grass-specific clades. Synteny studies indicate that expansion occurred to a large extent due to local gene duplications. Expression studies of 3 closely related MATH-BTB genes in maize (MAB1-3) indicate highly specific expression pattern. In summary, this work provides a solid base for further studies comparing genetic and functional information of the MATH-BTB family especially in the grasses. © 2014 Landes Bioscience.

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Juranić, M., & Dresselhaus, T. (2014). Phylogenetic analysis of the expansion of the MATH-BTB gene family in the grasses. Plant Signaling and Behavior, 9(MAR). https://doi.org/10.4161/psb.28242

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