P. Normand, P. Pujić, Danis Abrouk, Spandana Vemulapally, Trina M Guerra, Camila Carlos-Shanley, D. Hahn
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Draft Genomes of Nitrogen-fixing Frankia Strains Ag45/Mut15 and AgPM24 Isolated from Root Nodules of Alnus Glutinosa
The genomes of two nitrogen-fixing Frankia strains, Ag45/Mut15 and AgPM24, isolated from root nodules of Alnus glutinosa are described as representatives of a novel candidate species. Phylogenomic and ANI analyses confirmed that both strains are related to cluster 1 frankiae, and that both strains belong to a novel species. At 6.4 - 6.7 Mb, their genomes were smaller than those of other cultivated Alnus-infective cluster 1 strains but larger than that of the non-cultivated Alnus-infective cluster 1 Sp+ strain AgTrS that was their closest neighbor as assessed by ANI. Comparative genomic analyses identified genes essential for nitrogen-fixation, gene composition as regards COGs, secondary metabolites clusters and transcriptional regulators typical of those from Alnus-infective cluster 1 cultivated strains in both genomes. There were 459 genes present in other cultivated Alnus-infective strains lost in the two genomes, spread over the whole of the genome, which indicates genome erosion is taking place in these two strains.
期刊介绍：
Journal of Genomics publishes papers of high quality in all areas of gene, genetics, genomics, proteomics, metabolomics, DNA/RNA, computational biology, bioinformatics, and other relevant areas of research and application. Articles published by the journal are rigorously peer-reviewed. Types of articles include: Research paper, Short research communication, Review or mini-reviews, Commentary, Database, Software.
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