Dasypyrum villosum

Dasypyrum villosum is a species of annual grass in the family Poaceae. It is native to eastern and southern Europe and Western Asia from the Balearic Islands to Turkmenistan, including in the Mediterranean and the Caucasus regions.[1]

Dasypyrum villosum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Genus: Dasypyrum
Species:
D. villosum
Binomial name
Dasypyrum villosum
(L.) Borbás
Synonyms[1]
  • Secale villosum L.
  • Triticum villosum (L.) M.Bieb. 1819 not Host 1809 nor (L.) F. Herm. 1936
  • Agropyron villosum (L.) Link
  • Haynaldia villosa (L.) Schur
  • Pseudosecale villosum (L.) Degen
  • Hordeum ciliatum Lam.
  • Triticum caudatum Pers.
  • Agropyron caudatum (Pers.) P.Beauv.

Description

Culms are decumbent, with heights ranging from 25 to 70 cm. Racemes are single, oblong, bilateral, and 4–10 cm long; spikelets are oblong, laterally compressed, and 7–20 mm long.

Stem rust resistance

D. villosum has almost total immunity against Puccinia graminis f. sp. tritici[2][3] and carries Sr52 which offers some resistance against the Ug99 subrace of P.g.f.sp.t..[2][3] The genetic basis for this immunity is being introgressed into its close relative, wheat,[2][3] which is suffering from new races of this disease.

References
  1. Kew World Checklist of Selected Plant Families
  2. Qi, L. L.; Pumphrey, M. O.; Friebe, Bernd; Zhang, P.; Qian, C.; Bowden, R. L.; Rouse, M. N.; Jin, Y.; Gill, B. S. (2011-03-25). "A novel Robertsonian translocation event leads to transfer of a stem rust resistance gene (Sr52) effective against race Ug99 from Dasypyrum villosum into bread wheat". Theoretical and Applied Genetics. Springer Science and Business Media LLC. 123 (1): 159–167. doi:10.1007/s00122-011-1574-z. ISSN 0040-5752. PMID 21437597. S2CID 16127468.
  3. Ando, Kaori; Krishnan, Vandhana; Rynearson, Sheri; Rouse, Matthew N.; Danilova, Tatiana; Friebe, Bernd; See, Deven; Pumphrey, Michael O. (2019). "Introgression of a Novel Ug99-Effective Stem Rust Resistance Gene into Wheat and Development of Dasypyrum villosum Chromosome-Specific Markers via Genotyping-by-Sequencing (GBS)". Plant Disease. American Phytopathological Society. 103 (6): 1068–1074. doi:10.1094/pdis-05-18-0831-re. ISSN 0191-2917. PMID 31063029.
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