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Article
Genome constitution and evolution of Elymus atratus (Poaceae: Triticeae) inferred from cytogenetic and phylogenetic analysis
Elymus atratus (Nevski) Hand.-Mazz. is perennial hexaploid wheatgrass. It was assigned to the genus Elymus L. sensu stricto based on morphological characters. Its genome constitution has not been disentangled yet...
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Article
Open AccessBiosystematics studies on Elymus breviaristatus and Elymus sinosubmuticus (Poaceae: Triticeae)
Elymus breviaristatus and Elymus sinosubmuticus are perennial herbs, not only morphologically similar but also sympatric distribution. The genome composition of E. sinosubmuticus has not been reported, and the re...
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Article
Open AccessPhylogeny and maternal donors of Elytrigia Desv. sensu lato (Triticeae; Poaceae) inferred from nuclear internal-transcribed spacer and trnL-F sequences
Elytrigia Desv. is a genus with a varied array of morphology, cytology, ecology, and distribution in Triticeae. Classification and systematic position of Elytrigia remain controversial...
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Article
Molecular cloning of HMW glutenin subunits from Roegneria kamoji (Poaceae: Triticeae)
In the present study, The hexaploid species Roegneria kamoji (StStYYHH genomes) in Triticeae produced a single high molecular weight glutenin subunit (HMW-GS) 1St1.2 in its endosperm. 1St1.2 encoded 404 amino aci...
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Article
Open AccessPhylogeny and differentiation of the St genome in Elymus L. sensu lato (Triticeae; Poaceae) based on one nuclear DNA and two chloroplast genes
Hybridization 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 specie...
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Article
Identification, fine map** and characterization of Rht-dp, a recessive wheat dwarfing (reduced height) gene derived from Triticum polonicum
Semi-dwarfism is an agronomically important trait in breeding for resistance to damage by wind and rain (lodging resistance) and for stable high yields. Dwarf Polish wheat (Triticum polonicum L., 2n = 4x = 28, AA...
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Article
Molecular and cytological evidences for the natural wheatgrass hybrids occurrence and origin in west China
Interspecies hybridization has been frequently observed in the tribe Triticeae. Natural hybridization between Kengyilia and Roegneria or Elymus species has not been reported as yet. Several sterile wheatgrass ind...
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Article
Phylogeny and molecular evolution of the DMC1 gene within the StH genome species in Triticeae (Poaceae)
To estimate the phylogeny and molecular evolution of a single-copy nuclear disrupted meiotic cDNA (DMC1) gene within the StH genome species, two DMC1 homoeologous sequences were isolated from nearly all the sampl...
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Article
The origin of Triticum petropavlovskyi Udacz. et Migusch.: demonstration of the utility of the genes encoding plastid acetyl-CoA carboxylase sequence
Single- and low- copy genes are less likely subject to concerted evolution, thus making themselves ideal tools for studying the origin and evolution of polyploid taxa. Based on the sequences of a single-copy n...
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Article
Molecular cytogenetic characterization of the amphiploid between bread wheat and Psathyrostachys huashanica
A new wheat-Psathyrostachys huashanica amphiploid, PHW-SA, was characterized using molecular cytological tools to evaluate the potential utilization of P. huashanica for wheat improvement. PHW-SA pollen mother ce...
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Article
Open AccessPhylogeny and evolutionary history of Leymus(Triticeae; Poaceae) based on a single-copy nuclear gene encoding plastid acetyl-CoA carboxylase
Single- and low- copy genes are less likely subject to concerted evolution, thus making themselves ideal tools for studying the origin and evolution of polyploid taxa. Leymus is a polyploid genus with a diverse a...
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Article
Morphological and cytogenetic studies on the hybrid between bread wheat and Psathyrostachys huashanica Keng ex Kuo
Psathyrostachys huashanica Keng ex Kuo (2n = 2x = 14, NsNs), a source of wheat stripe rust, take-all fungus, and powdery mildew resistance with tolerance to salinity and drought, has been successfully hybridized ...
