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Open AccessArticle

Evolution and Expression of the Membrane Attack Complex and Perforin Gene Family in the Poaceae

State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
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Int. J. Mol. Sci. 2020, 21(16), 5736; https://doi.org/10.3390/ijms21165736
Received: 15 July 2020 / Revised: 7 August 2020 / Accepted: 8 August 2020 / Published: 10 August 2020
(This article belongs to the Special Issue Plant Cell and Organism Development 2.0)
Membrane Attack Complex and Perforin (MACPF) proteins play crucial roles in plant development and plant responses to environmental stresses. To date, only four MACPF genes have been identified in Arabidopsis thaliana, and the functions of the MACPF gene family members in other plants, especially in important crop plants, such as the Poaceae family, remain largely unknown. In this study, we identified and analyzed 42 MACPF genes from six completely sequenced and well annotated species representing the major Poaceae clades. A phylogenetic analysis of MACPF genes resolved four groups, characterized by shared motif organizations and gene structures within each group. MACPF genes were unevenly distributed along the Poaceae chromosomes. Moreover, segmental duplications and dispersed duplication events may have played significant roles during MACPF gene family expansion and functional diversification in the Poaceae. In addition, phylogenomic synteny analysis revealed a high degree of conservation among the Poaceae MACPF genes. In particular, Group I, II, and III MACPF genes were exposed to strong purifying selection with different evolutionary rates. Temporal and spatial expression analyses suggested that Group III MACPF genes were highly expressed relative to the other groups. In addition, most MACPF genes were highly expressed in vegetative tissues and up-regulated by several biotic and abiotic stresses. Taken together, these findings provide valuable information for further functional characterization and phenotypic validation of the Poaceae MACPF gene family. View Full-Text
Keywords: MACPF; evolution; expression profile; Poaceae MACPF; evolution; expression profile; Poaceae
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Yu, L.; Liu, D.; Chen, S.; Dai, Y.; Guo, W.; Zhang, X.; Wang, L.; Ma, S.; Xiao, M.; Qi, H.; Xiao, S.; Chen, Q. Evolution and Expression of the Membrane Attack Complex and Perforin Gene Family in the Poaceae. Int. J. Mol. Sci. 2020, 21, 5736.

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