ArticleBMC plant biology2015
Phylogeny and differentiation of the St genome in Elymus L. sensu lato (Triticeae; Poaceae) based on one nuclear DNA and two chloroplast genes.
Article in BMC plant biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- The genome-wide analysis of the NAC gene family in Pseudoroegneria libanotica highlights the functions of PlNAC17/20 under abiotic stress conditions.Molecular genetics and genomics : MGG · 2026Article
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- Phylogeny and taxonomy of the polyploid species that contain St genome (Triticeae; Poaceae) based on four nuclear DNA and three chloroplast genes.BMC plant biology · 2025Article
- Synopsis of the genusPhytoKeys · 2025Article
- Genome-wide identification and characterization of bZIP gene family explore the responses of PsebZIP44 and PsebZIP46 in Pseudoroegneria libanotica under drought stress.BMC plant biology · 2024Article
- Genome constitution and evolution of Elymus atratus (Poaceae: Triticeae) inferred from cytogenetic and phylogenetic analysis.Genes & genomics · 2024Article
- Comparative Characterization ofPlants (Basel, Switzerland) · 2023Article
- The launch of satellite: DNA repeats as a cytogenetic tool in discovering the chromosomal universe of wild Triticeae.Chromosoma · 2023Review
- Characterization of the complete chloroplast genome ofMitochondrial DNA. Part B, Resources · 2023Article
- Biosystematics studies on Elymus breviaristatus and Elymus sinosubmuticus (Poaceae: Triticeae).BMC plant biology · 2022Article
- EST-SSR marker development based on RNA-sequencing of E. sibiricus and its application for phylogenetic relationships analysis of seventeen Elymus species.BMC plant biology · 2019Article
- Genome constitution and evolution of Elytrigia lolioides inferred from Acc1, EF-G, ITS, TrnL-F sequences and GISH.BMC plant biology · 2019Article
- Phylogeny and maternal donors of Elytrigia Desv. sensu lato (Triticeae; Poaceae) inferred from nuclear internal-transcribed spacer and trnL-F sequences.BMC plant biology · 2017Article
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12 authors.
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Abstract
backgroundHybridization and polyploidization can be major mechanisms for plant evolution and speciation. Thus, the process of polyploidization and evolutionary history of polyploids is of widespread interest. The species in Elymus L. sensu lato are allopolyploids that share a common St genome from Pseudoroegneria in different combinations with H, Y, P, and W genomes. But how the St genome evolved in the Elymus s. l. during the hybridization and polyploidization events remains unclear. We used nuclear and chloroplast DNA-based phylogenetic analyses to shed some light on this process.
resultsThe Maximum likelihood (ML) tree based on nuclear ribosomal internal transcribed spacer region (nrITS) data showed that the Pseudoroegneria, Hordeum and Agropyron species served as the St, H and P genome diploid ancestors, respectively, for the Elymus s. l. polyploids. The ML tree for the chloroplast genes (matK and the intergenic region of trnH-psbA) suggests that the Pseudoroegneria served as the maternal donor of the St genome for Elymus s. l. Furthermore, it suggested that Pseudoroegneria species from Central Asia and Europe were more ancient than those from North America. The molecular evolution in the St genome appeared to be non-random following the polyploidy event with a departure from the equilibrium neutral model due to a genetic bottleneck caused by recent polyploidization.
conclusionOur results suggest the ancient common maternal ancestral genome in Elymus s. l. is the St genome from Pseudoroegneria. The evolutionary differentiation of the St genome in Elymus s. l. after rise of this group may have multiple causes, including hybridization and polyploidization. They also suggest that E. tangutorum should be treated as C. dahurica var. tangutorum, and E. breviaristatus should be transferred into Campeiostachys. We hypothesized that the Elymus s. l. species origined in Central Asia and Europe, then spread to North America. Further study of intraspecific variation may help us evaluate our phylogenetic results in greater detail and with more certainty.
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