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2021•Journal of GenomicsOpen access

Draft genomes of non-nitrogen-fixing Frankia strains

Camila Carlos‐Shanley, Trina Guerra, Dittmar Hahn

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Abstract

In this study, we describe the genomes of two novel candidate species of non-nitrogen fixing Frankia that were isolated from the root nodules of Coriaria nepalensis and Alnus glutinosa, genospecies CN and Ag, respectively.Comparative genomic analyses revealed that both genospecies lack genes essential for nitrogen-fixation and possess genes involved in the degradation of plant cell walls.Additionally, we found distinct biosynthetic gene clusters in each genospecies.The availability of these genomes will contribute to the study of the taxonomy and evolution of actinorhizal symbioses.

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In this study, we describe the genomes of two novel candidate species of non-nitrogen fixing Frankia that were isolated from the root nodules of Coriaria nepalensis and Alnus glutinosa, genospecies CN and Ag, respectively.Comparative genomic analyses revealed that both genospecies lack genes essential for nitrogen-fixation and possess genes involved in the degradation of plant cell walls.Additionally, we found distinct biosynthetic gene clusters in each genospecies.The availability of these genomes will contribute to the study of the taxonomy and evolution of actinorhizal symbioses.

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Available abstract

In this study, we describe the genomes of two novel candidate species of non-nitrogen fixing Frankia that were isolated from the root nodules of Coriaria nepalensis and Alnus glutinosa, genospecies CN and Ag, respectively.Comparative genomic analyses revealed that both genospecies lack genes essential for nitrogen-fixation and possess genes involved in the degradation of plant cell walls.Additionally, we found distinct biosynthetic gene clusters in each genospecies.The availability of these genomes will contribute to the study of the taxonomy and evolution of actinorhizal symbioses.

Key concepts: Frankia, Actinorhizal plant, Nitrogen fixation, Biology, Genome, Symbiosis, Botany, Gene

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