Genome analysis of species in the genus Hystrix (Triticeae; Poaceae)

Ellneskog‐Staam, Pernilla; Bothmer, Roland von; Anamthawat‐Jónsson, Kesara; Salomon, Björn

doi:10.1007/s00606-006-0509-7

Cited by 17 publications

(16 citation statements)

References 14 publications

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“…GISH and Southern genomic hybridization supported this conclusion (Ellenskog-Staam et al, 2007), which was also supported by nuclear rDNA ITS and single copy plastid ACCase data (Fan et al, 2007;Zhang et al, 2008). However, analysis of genome-specific repetitive DNA and RAPD markers suggested that the St genome is either not present in E. hystrix or that the St genome has been considerably modified during the evolution of the species (Svitashev et al, 1996).…”

Section: Phylogenetic Relationships Of Elymus Speciesmentioning

confidence: 55%

Origin of the Y genome in Elymus and its relationship to other genomes in Triticeae based on evidence from elongation factor G (EF-G) gene sequences

Sun

Komatsuda

2010

Molecular Phylogenetics and Evolution

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Section: Phylogenetic Relationships Of Elymus Speciesmentioning

confidence: 55%

Origin of the Y genome in Elymus and its relationship to other genomes in Triticeae based on evidence from elongation factor G (EF-G) gene sequences

Sun

Komatsuda

2010

Molecular Phylogenetics and Evolution

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“…H. komarovii , which is a tetraploid (2n = 4× = 28) of Hystrix (Tzvelev 1983), distributing from north central China to the southern part of the former Soviet Union and Japan (Keng 1959). Based on GISH and Southern genomic hybridisation studies, Ellenskog‐Staam et al. (2007) reported that H. komarovii most likely had a variant of the StH genome of H. patula .…”

Section: Discussionmentioning

confidence: 99%

“…2006; Zhang & Zhou 2006, 2007). Recently, Ellenskog‐Staam et al. (2007) reported that H. coreana , H. longearistata and H. duthiei contained the Ns 1 Ns 2 genome, H. patula contained the StH genome, and H. komarovii likely had a variant of the StH genome, based on the results of GISH and Southern genomic hybridisation.…”

Section: Introductionmentioning

confidence: 99%

Phylogeny of Hystrix and related genera (Poaceae: Triticeae) based on nuclear rDNA ITS sequences

Zhang

Fan

et al. 2008

Plant Biology

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The taxonomic status of Hystrix and phylogenetic relationships among Hystrix and its related genera of Pseudoroegneria (St), Hordeum (H), Psathyrostachys (Ns), Elymus (StH), Leymus (NsXm), Thinopyrum bessarabicum (E(b)) and Lophopyrum elongatum (E(e)) were estimated from sequences of the internal transcribed spacer (ITS) region of nuclear ribosomal DNA. The type species of Hystrix, H. patula, clustered with species of Pseudoroegneria, Hordeum, Elymus, Th. bessarabicum and Lo. elongatum, while H. duthiei ssp. duthiei, H. duthiei ssp. longearistata, H. coreana and H. komarovii were grouped with Psathyrostachys and Leymus species. The results indicate that: (i) H. patula is distantly related to other species of Hystrix, but is closely related to Elymus species; (ii) H. duthiei ssp. duthiei, H. duthiei ssp. longearistata, H. coreana and H. komarovii have a close affinity with Psathyrostachys and Leymus species, and H. komarovii might contain the NsXm genome of Leymus; and (iii) the St, H and Ns genomes in Hystrix originate from Pseudoroegneria, Hordeum and Psathyrostachys, respectively, while the Xm in Hystrix and Leymus has a complex relationship with the E or St genomes. According to the genomic system of classification in Tiritceae, it is reasonable to treat Hystrix patula as Elymus hystrix L, and the other species of Hystrix as species of a section of Leymus, Leymus Sect. Hystrix.

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“…Yen and Yang (2008) regarded these four taxa as section Silvicolus of Leymus species on the basis of ecological characteristics. Ellneskog-Staam et al (2007), however, advocated that Hy. komarovii most likely had a variant of the StH genome of Hy.…”

Section: Interspecific Relationships Of Leymusmentioning

confidence: 92%

Phylogenetic Analysis of Leymus (Poaceae: Triticeae) Inferred from Nuclear rDNA ITS Sequences

Yang

Fan

et al. 2008

Biochem Genet

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To investigate the phylogenetic relationships of polyploid Leymus (Poaceae: Triticeae), sequences of the nuclear rDNA internal transcribed spacer region (ITS) were analyzed for 34 Leymus accessions representing 25 species, together with three Psathyrostachys species (Ns genome), two Pseudoroegneria (St genome) species, Lophopyrum elongatum (E(e) genome), and Thinopyrum bessarabicum (E(b) genome). The phylogenetic analyses (maximum likelihood and Bayesian inference) supported two major clades, one including 21 Leymus species and three Psathyrostachys species, the other with nine Leymus species and four diploid species. The ITS RNA secondary structure of the Leymus species was compared with that of their putative diploid donor. It is suggested that (1) the species from the same areas or neighboring geographic regions are closely related to each other; (2) L. coreanus, L. duthiei, L. duthiei var. longearistatus, and L. komarovii are closely related to other Leymus species, and it is reasonable to transfer these species from the genus Hystrix to Leymus; (3) the ITS sequences of Leymus are evolutionarily distinct; (4) the different Leymus species and different distribution of a species derived their Ns genome from different Psathyrostachys species; and (5) there is a close relationship among Leymus, Pseudoroegneria, Lophopyrum, and Thinopyrum, but it is difficult to presume that the St, E(e), and E(b) genome may be the Xm genome donor of the Leymus species.

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Genome analysis of species in the genus Hystrix (Triticeae; Poaceae)

Cited by 17 publications

References 14 publications

Origin of the Y genome in Elymus and its relationship to other genomes in Triticeae based on evidence from elongation factor G (EF-G) gene sequences

Origin of the Y genome in Elymus and its relationship to other genomes in Triticeae based on evidence from elongation factor G (EF-G) gene sequences

Phylogeny of Hystrix and related genera (Poaceae: Triticeae) based on nuclear rDNA ITS sequences

Phylogenetic Analysis of Leymus (Poaceae: Triticeae) Inferred from Nuclear rDNA ITS Sequences

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