Taxon: Hordeum intercedens Nevski

Common names:

• bobtail barley   (Source: F NAmer ) – English
  

Economic importance:

• Gene sources: tertiary genetic relative of barley   (fide Pl Syst Evol 153:55. 1986; Divers Barley 248. 2003)
  

More:

View ethnobotanical data from Moerman's Native American Ethnobotany Database

Distributional range:

• NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
  Southwestern U.S.A.: United States - California [s.w.]
  Northern Mexico: Mexico - Baja Norte [n.w.]

References:

• Baum, B. R. et al. 2005. Ancient differentiation of the H & I haplomes in diploid Hordeum species based on 5S rDNA. Genome 48:610–618. [based on 5S rDNA orthologous sequences (unit classes) mainly for S American HH genome carriers, found that this N American taxon carries 2 units, long H2 & long Y2 shared w. S American taxa within a 40-50MY old genus].
• Blattner, F. R. 2004. Phylogenetic analysis of Hordeum (Poaceae) as inferred by nuclear rDNA ITS sequences. Molec. Phylogenet. Evol. 33:289–299. [found a monophyletic genus with four groups concurring with the 4 recognized genomes; it proposed for this diploid annual species a sister affinity w. S American H. euclaston that may have split prob. 0.2 MYa].
• Bothmer, R. von & N. Jacobsen. 1985. Origin, taxonomy, and related species. In: American Society of Agronomy, Agronomy; a series of monographs. (Agron Monog) 26:40.
• Bothmer, R. von & N. Jacobsen. 1986. Interspecific crosses in Hordeum (Poaceae). Pl. Syst. Evol. 153:49–64. [reports crosses with nine different taxa in the genus, with six of them having expected chromosome numbers, but three of these crosses resulted in hybrids with 10-20% pollen fertility].
• Bothmer, R. von et al. 1982. Revision of the Hordeum pusillum group. Nordic J. Bot. 2:315.
• Bothmer, R. von et al. 1983. Interspecific hybridization with cultivated barley (Hordeum vulgare). Hereditas (Beijing) 99:219–244. [reports for this annual diploid crosses with H. vulgare resulting in hybrids with 40% of seed set, but not successful plant development].
• Bothmer, R. von, T. van Hintum, H. Knupffer & K. Sato, 2003. Diversity in Barley (Hordeum vulgare) In: Developments in Plant Genetics and Breeding, 7 . Elsevier (Divers Barley) [considers all wild species of Hordeum, except H. bulbosum, as part of the tertiary gene pool].
• FNA Editorial Committee. 1993–. Flora of North America. (F NAmer)
• Jakob, S. S. & F. R. Blattner. 2006. A chloroplast genealogy of Hordeum (Poaceae): long-term persisting haplotypes, incomplete lineage sorting, regional extinction, and the consequences for phylogenetic inference. Molec. Biol. Evol. 23:1602–1612. [it found a monophyletic genus with four groups concurring with the 4 recognized genomes; it found one haplotype for this N American taxon that derived from S American types & interpreted as a long distance dispersal].
• Nishikawa, T. et al. 2002. Molecular phylogeny of the genus Hordeum using three chloroplast DNA sequences. Genome 45:1157–1166. [provides an unresolved phylogeny where one accession of this taxon appears within a polytomy, not belonging to one of the recognized eight subclades].
• Pleines, T. & F. R. Blattner. 2008. Phylogeographic implications of an AFLP phylogeny of the American diploid Hordeum species (Poaceae: Triticeae). Taxon 57:875–881. [used 3 different non-USDA accessions of this taxon that clustered together sister to H. euclaston within a clade of S Americaan & N American taxa].
• Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:394.
• Taketa, S. et al. 2005. Ancestry of American polyploid Hordeum species with the I genome inferred from 5S and 18S-25S rDNA. Ann. Bot. (Oxford) 96:23–33. [using FISH technique detected for this diploid a pattern supporting its recognition as a potential ancestor of H. depressum, but it was not supported by RFLP].

More:

Search AGRICOLA article citation database for citations referencing Hordeum intercedens.

Search NCBI's Entrez search engine for PubMed citations referencing Hordeum intercedens. Note: Defaults to a search by genus or species epithet if species binomial not found.

Check other databases for Hordeum intercedens Nevski:

• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• CNWG: Catalogue of New World Grasses Searchable Database
• Grass Manual on the Web: Manual of Grasses for North America North of Mexico
• World Grass Species-Descriptions: Morphological species description from Royal Botanic Gardens, Kew
• Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  Note: Defaults to a search by genus or species epithet if species binomial not found.

Check other databases for images:

• PlantSystematics.org
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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