The abstract is read at the publisher; the summary is JClub's.
Genome-guided multilocus sequence analysis resolves four 16SrIII (X-disease) phytoplasma lineages in South America, including a South America–restricted lineage with only 90.8–93.9% average nucleotide identity.
- Why it matters: 16S rRNA gene RFLP cannot distinguish 16SrIII strains that differ in host range, vectors, or regulatory relevance, because 16S is too conserved.
- What they did: Using 16 curated genomes, the authors selected five single-copy loci (tuf, secA, secY, mutM, cimH) and built a PCR-based MLSA; the 2,870 nt concatenated dataset reproduced genome-defined lineages.
- The result: The MLSA assigned five Argentinian field isolates to genome-based lineages and showed that identical 16SrIII-B RFLP patterns can occur across lineages, enabling more reliable epidemiological and phytosanitary decisions.
The findingWhy it mattersWhat they didThe result
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