What question did this study set out to answer?

To investigate the evolution of plastomes in annual Brachypodium species, focusing on their diversity and adaptive changes.

March 26, 2026BMC Plant BiologyOpen Access

Plastome evolution in annual Brachypodium species reveals widespread heteroplasmy and chloroplast capture, lineage-specific codon usage bias, and low positive selection

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Authors

MCMiguel Rufo CamposUniversidad de Zaragoza JVJohn P. Vogel EPErnesto Pérez-CollazosUniversidad de Zaragoza

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Implication

Comparative genomics illuminates plastome diversity and evolutionary dynamics in annual Brachypodium species, highlighting complexities in adaptation.

Key Points

To investigate the evolution of plastomes in annual Brachypodium species, focusing on their diversity and adaptive changes.
Analyzed 287 plastomes from B. distachyon, B. stacei, and B. hybridum.
Explored structural variations, selection patterns, and phylogenomic relationships.
Utilized Tajima’s neutrality test and evolutionary models to detect positive selection in plastid genes.
Confirmed differentiation of S and D plastomes inherited from B. stacei and B. distachyon.
Identified high SNP diversity in B. hybridum-D plastotypes and low diversity in B. hybridum-S.
Detected positive selection in 29 plastid genes, with notable genes including matK and ndhF.

Cite This Study

Campos et al. (2026) studied this question.

synapsesocial.com/papers/69c4cd3efdc3bde448919539 https://doi.org/10.1186/s12870-026-08570-2

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March 26, 2026BMC Plant BiologyOpen Access

Plastome evolution in annual Brachypodium species reveals widespread heteroplasmy and chloroplast capture, lineage-specific codon usage bias, and low positive selection

View Full Paper

Ask AI

Bookmark

Authors

MCMiguel Rufo CamposUniversidad de Zaragoza JVJohn P. Vogel EPErnesto Pérez-CollazosUniversidad de Zaragoza

Discussion

Member takes

Implication

Comparative genomics illuminates plastome diversity and evolutionary dynamics in annual Brachypodium species, highlighting complexities in adaptation.

Key Points

To investigate the evolution of plastomes in annual Brachypodium species, focusing on their diversity and adaptive changes.
Analyzed 287 plastomes from B. distachyon, B. stacei, and B. hybridum.
Explored structural variations, selection patterns, and phylogenomic relationships.
Utilized Tajima’s neutrality test and evolutionary models to detect positive selection in plastid genes.
Confirmed differentiation of S and D plastomes inherited from B. stacei and B. distachyon.
Identified high SNP diversity in B. hybridum-D plastotypes and low diversity in B. hybridum-S.
Detected positive selection in 29 plastid genes, with notable genes including matK and ndhF.

Cite This Study

Campos et al. (2026) studied this question.

synapsesocial.com/papers/69c4cd3efdc3bde448919539 https://doi.org/10.1186/s12870-026-08570-2

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