A nuclear phylogenomic tree of grasses (Poaceae) recovers current classification despite gene tree incongruence
Bianconi, Matheus E. ; Hackel, Jan ; Vorontsova, Maria S. ; Catalán, Pilar (Universidad de Zaragoza) ; Moreno-Aguilar, María Fernanda ; Grass Phylogeny Working Group III
Resumen: Summary
Grasses (Poaceae) comprise c. 11 800 species and are central to human livelihoods and terrestrial ecosystems. Knowing their relationships and evolutionary history is key to comparative research and crop breeding. Advances in genome-scale sequencing allow for increased breadth and depth of phylogenomic analyses, making it possible to infer a new reference species tree of the family.
We inferred a comprehensive species tree of grasses by combining new and published sequences for 331 nuclear genes from genome, transcriptome, target enrichment and shotgun data. Our 1153-tip tree covers 79% of grass genera (including 21 genera sequenced for the first time) and all but two small tribes. We compared it to a newly inferred 910-tip plastome tree.
We recovered most of the tribes and subfamilies previously established, despite pervasive incongruence among nuclear gene trees. The early diversification of the PACMAD clade could represent a hard polytomy. Gene tree–species tree reconciliation suggests that reticulation events occurred repeatedly. Nuclear–plastome incongruence is rare, with very few cases of supported conflict.
We provide a robust framework for the grass tree of life to support research on grass evolution, including modes of reticulation, and genetic diversity for sustainable agriculture.
Idioma: Inglés
DOI: 10.1111/nph.20263
Año: 2024
Publicado en: New Phytologist 245, 2 (2024), 818-834
ISSN: 0028-646X
Factor impacto JCR: 8.1 (2024)
Categ. JCR: PLANT SCIENCES rank: 12 / 273 = 0.044 (2024) - Q1 - T1
Factor impacto SCIMAGO: 3.293 - Plant Science (Q1) - Physiology (Q1)
Financiación: info:eu-repo/grantAgreement/ES/DGA/LMP82-21
Financiación: info:eu-repo/grantAgreement/EC/H2020/101105838/EU/Mutualism abandonment in land plants and the origin of novel adaptations/SYMBIOLOSS
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2022-140074NB-I00
Financiación: info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131073B-I00
Tipo y forma: Article (Published version)
Área (Departamento): Área Botánica (Dpto. CC.Agrar.y Medio Natural)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Exportado de SIDERAL (2025-10-17-14:22:37)
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Grasses (Poaceae) comprise c. 11 800 species and are central to human livelihoods and terrestrial ecosystems. Knowing their relationships and evolutionary history is key to comparative research and crop breeding. Advances in genome-scale sequencing allow for increased breadth and depth of phylogenomic analyses, making it possible to infer a new reference species tree of the family.
We inferred a comprehensive species tree of grasses by combining new and published sequences for 331 nuclear genes from genome, transcriptome, target enrichment and shotgun data. Our 1153-tip tree covers 79% of grass genera (including 21 genera sequenced for the first time) and all but two small tribes. We compared it to a newly inferred 910-tip plastome tree.
We recovered most of the tribes and subfamilies previously established, despite pervasive incongruence among nuclear gene trees. The early diversification of the PACMAD clade could represent a hard polytomy. Gene tree–species tree reconciliation suggests that reticulation events occurred repeatedly. Nuclear–plastome incongruence is rare, with very few cases of supported conflict.
We provide a robust framework for the grass tree of life to support research on grass evolution, including modes of reticulation, and genetic diversity for sustainable agriculture.
Idioma: Inglés
DOI: 10.1111/nph.20263
Año: 2024
Publicado en: New Phytologist 245, 2 (2024), 818-834
ISSN: 0028-646X
Factor impacto JCR: 8.1 (2024)
Categ. JCR: PLANT SCIENCES rank: 12 / 273 = 0.044 (2024) - Q1 - T1
Factor impacto SCIMAGO: 3.293 - Plant Science (Q1) - Physiology (Q1)
Financiación: info:eu-repo/grantAgreement/ES/DGA/LMP82-21
Financiación: info:eu-repo/grantAgreement/EC/H2020/101105838/EU/Mutualism abandonment in land plants and the origin of novel adaptations/SYMBIOLOSS
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2022-140074NB-I00
Financiación: info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131073B-I00
Tipo y forma: Article (Published version)
Área (Departamento): Área Botánica (Dpto. CC.Agrar.y Medio Natural)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Exportado de SIDERAL (2025-10-17-14:22:37)
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Record created 2025-05-16, last modified 2025-10-17