Mesopolyploidy as a taxonomic clade marker for Brassica and
relatives (tribe Brassiceae)

J 2026

Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae)

THOMAS, Shawn K; R Shawn ABRAHAMS; Daniel Robert KICK; Nora WALDEN; Gavin CONANT et al.

Základní údaje

Originální název

Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae)

Autoři

Vydání

Annals of Botany, Oxford, Oxford University Press, 2026, 0305-7364

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.600 v roce 2024

Označené pro přenos do RIV

Organizační jednotka

Středoevropský technologický institut

DOI

https://doi.org/10.1093/aob/mcaf170

UT WoS

001566586400001

Klíčová slova anglicky

Whole-genome duplication; phylogenomics; mustard crops; Brassica; Brassicaceae; Cruciferae

Štítky

14314010

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 2. 4. 2026 10:20, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Background and Aims: Whole-genome duplications (WGDs) are rampant in flowering plant genomes. Within Brassicaceae, the genus Brassica (including crop mustards) and relatives (tribe Brassiceae) are hypothesized to share an ancient mesohexaploidy, or whole-genome triplication (WGT), resulting from two WGD events (Br-alpha WGT). However, the phylogenetic boundaries of the Br-alpha WGT remain unknown. Methods: We use phylogenomic assessments and divergence time analyses to place and date the Br-alpha WGT. We see conflicting topologies among the plastid and nuclear trees putatively due to polyploidy, hybridization and reticulate evolution. Despite this, we find tribe Brassiceae to be monophyletic in both trees. Key Results: As currently circumscribed, tribe Brassiceae does not share the Br-alpha WGT. The sister clade to the rest of the tribe, containing the genera Orychophragmus and Sinalliaria, show no evidence of the Br-alpha WGT. Based on this placement, divergence time analyses indicate that the Br-alpha WGT would have occurred between 12.1 and 10.7 million years ago. Conclusions: We propose a new taxonomic revision for the tribe Brassiceae based on the shared characteristics of the Br-alpha WGT. This presents a stable characteristic for the tribe, which was not the case in previous taxonomies based on morphological characters. These findings help clarify the history of the mustard crops and their relatives and resolve long-standing issues with the circumscription of the tribe Brassiceae.

Citovat

THOMAS, Shawn K; R Shawn ABRAHAMS; Daniel Robert KICK; Nora WALDEN; Gavin CONANT; Michael R MCKAIN; Hong AN; Tatiana ARIAS; Patrick P EDGER; Alex HARKESS; Kasper P HENDRIKS; Marcus A KOCH; Fredric LENS; Martin LYSÁK; Alex MCALVAY; Klaus MUMMENHOFF; Ihsan A AL-SHEHBAZ; Jacob D WASHBURN a J Chris PIRES. Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae). Annals of Botany. Oxford: Oxford University Press, 2026, 15 s. ISSN 0305-7364. Dostupné z: https://doi.org/10.1093/aob/mcaf170.

@article{2544191,
   author = {Thomas, Shawn K and Abrahams, R Shawn and Kick, Daniel Robert and Walden, Nora and Conant, Gavin and McKain, Michael R and An, Hong and Arias, Tatiana and Edger, Patrick P and Harkess, Alex and Hendriks, Kasper P and Koch, Marcus A and Lens, Fredric and Lysák, Martin and McAlvay, Alex and Mummenhoff, Klaus and AlandShehbaz, Ihsan A and Washburn, Jacob D and Pires, J Chris},
   article_location = {Oxford},
   doi = {https://doi.org/10.1093/aob/mcaf170},
   keywords = {Whole-genome duplication; phylogenomics; mustard crops; Brassica; Brassicaceae; Cruciferae},
   language = {eng},
   issn = {0305-7364},
   journal = {Annals of Botany},
   note = {volume, issue, Scopus č. a zadat pro přenos do RIV až v r.2027},
   title = {Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae)},
   url = {https://doi.org/10.1093/aob/mcaf170},
   year = {2026}
}

TY  - JOUR
ID  - 2544191
AU  - Thomas, Shawn K - Abrahams, R Shawn - Kick, Daniel Robert - Walden, Nora - Conant, Gavin - McKain, Michael R - An, Hong - Arias, Tatiana - Edger, Patrick P - Harkess, Alex - Hendriks, Kasper P - Koch, Marcus A - Lens, Fredric - Lysák, Martin - McAlvay, Alex - Mummenhoff, Klaus - Al-Shehbaz, Ihsan A - Washburn, Jacob D - Pires, J Chris
PY  - 2026
TI  - Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae)
JF  - Annals of Botany
PB  - Oxford University Press
SN  - 03057364
N1  - volume, issue, Scopus č. a zadat pro přenos do RIV až v r.2027
KW  - Whole-genome duplication
KW  - phylogenomics
KW  - mustard crops
KW  - Brassica
KW  - Brassicaceae
KW  - Cruciferae
UR  - https://doi.org/10.1093/aob/mcaf170
N2  - Background and Aims: Whole-genome duplications (WGDs) are rampant in flowering plant genomes. Within Brassicaceae, the genus Brassica (including crop mustards) and relatives (tribe Brassiceae) are hypothesized to share an ancient mesohexaploidy, or whole-genome triplication (WGT), resulting from two WGD events (Br-alpha WGT). However, the phylogenetic boundaries of the Br-alpha WGT remain unknown. Methods: We use phylogenomic assessments and divergence time analyses to place and date the Br-alpha WGT. We see conflicting topologies among the plastid and nuclear trees putatively due to polyploidy, hybridization and reticulate evolution. Despite this, we find tribe Brassiceae to be monophyletic in both trees. Key Results: As currently circumscribed, tribe Brassiceae does not share the Br-alpha WGT. The sister clade to the rest of the tribe, containing the genera Orychophragmus and Sinalliaria, show no evidence of the Br-alpha WGT. Based on this placement, divergence time analyses indicate that the Br-alpha WGT would have occurred between 12.1 and 10.7 million years ago. Conclusions: We propose a new taxonomic revision for the tribe Brassiceae based on the shared characteristics of the Br-alpha WGT. This presents a stable characteristic for the tribe, which was not the case in previous taxonomies based on morphological characters. These findings help clarify the history of the mustard crops and their relatives and resolve long-standing issues with the circumscription of the tribe Brassiceae.
ER  -

THOMAS, Shawn K; R Shawn ABRAHAMS; Daniel Robert KICK; Nora WALDEN; Gavin CONANT; Michael R MCKAIN; Hong AN; Tatiana ARIAS; Patrick P EDGER; Alex HARKESS; Kasper P HENDRIKS; Marcus A KOCH; Fredric LENS; Martin LYSÁK; Alex MCALVAY; Klaus MUMMENHOFF; Ihsan A AL-SHEHBAZ; Jacob D WASHBURN a J Chris PIRES. Mesopolyploidy as a taxonomic clade marker for Brassica and relatives (tribe Brassiceae). \textit{Annals of Botany}. Oxford: Oxford University Press, 2026, 15 s. ISSN~0305-7364. Dostupné z: https://doi.org/10.1093/aob/mcaf170.

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