Details

Autor(en) / Beteiligte

• Berckx, Fede
• Nguyen, Thanh Van
• Bandong, Cyndi Mae
• Lin, Hsiao-Han
• Yamanaka, Takashi
• Katayama, Sae
• Wibberg, Daniel
• Blom, Jochen
• Kalinowski, Jörn
• Tateno, Masaki
• Simbahan, Jessica
• Liu, Chi-Te
• Brachmann, Andreas
• Pawlowski, Katharina

Titel

A tale of two lineages: how the strains of the earliest divergent symbiotic Frankia clade spread over the world

Ist Teil von

• BMC genomics, 2022-08, Vol.23 (1), p.1-602, Article 602

Ort / Verlag

London: BioMed Central Ltd

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Springer Nature - Complete Springer Journals

Beschreibungen/Notizen

• It is currently assumed that around 100 million years ago, the common ancestor to the Fabales, Fagales, Rosales and Cucurbitales in Gondwana, developed a root nodule symbiosis with a nitrogen-fixing bacterium. The symbiotic trait evolved first in Frankia cluster-2; thus, strains belonging to this cluster are the best extant representatives of this original symbiont. Most cluster-2 strains could not be cultured to date, except for Frankia coriariae, and therefore many aspects of the symbiosis are still elusive. Based on phylogenetics of cluster-2 metagenome-assembled genomes (MAGs), it has been shown that the genomes of strains originating in Eurasia are highly conserved. These MAGs are more closely related to Frankia cluster-2 in North America than to the single genome available thus far from the southern hemisphere, i.e., from Papua New Guinea.