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Int J Syst Evol Microbiol. 2017 Nov;67(11):4680-4684. doi: 10.1099/ijsem.0.002353. Epub 2017 Sep 28.

Elevation of three subspecies of Lonsdalea quercina to species level: Lonsdalea britannica sp. nov., Lonsdalea iberica sp. nov. and Lonsdalea populi sp. nov.

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1​The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, PR China.
2​Forestry Research Institute of Puyang, Henan Puyang, PR China.
3​Hungarian Forest Research Institute, Hegyalja 18, H-3232 Mátrafü, Hungary.
4​Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón-IA2 - (CITA - Universidad de Zaragoza), 50059 Zaragoza, Spain.


Four subspecies of Lonsdalea quercina (L. quercina subsp. quercina, L. quercina subsp. britannica, L. quercina subsp. iberica and L. quercina subsp. populi) were studied by genome sequence-derived average nucleotide identity (ANI), phylogenetic analysis based on 16S rRNA gene sequences, multilocus sequence analysis (MLSA) and phenotypic characteristics. In phylogenetic trees, based on 16S rRNA gene sequences, and in MLSA data, the four subspecies were divided into four subclusters in the Lonsdalea clade with high boot strap support. The ANI values between the four subspecies were 88.71-93.38 %, respectively, lower than the proposed species boundary ANI cut-off (95-96 %) that is considered the most important criterion to reclassify these subspecies at the species level. It is proposed that three subspecies be elevated to the species level as Lonsdalea britannica sp. nov. (type strain R-43280T=LMG 26267T=NCPPB 4481T=CFCC 10822T), Lonsdalea iberica sp. nov. (type strain R-44166T=LMG 26264T=NCPPB 4490T=CFCC 10824T) and Lonsdalea populi sp. nov. (type strain NY060T=DSM 25466T=NCAIM B 02483T=LMG 27349T=CFCC 13125T).


Lonsdalea quercina; plant pathogen; reclassification

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