Oryza nivara

Oryza nivara
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Oryza
Species:
O. nivara
Binomial name
Oryza nivara

Oryza nivara is a possible wild progenitor of the cultivated rice Oryza sativa.[2][3][4][5][6] It was separated from Oryza rufipogon in 1965; however, the separation has been questioned,[7] and some sources treat it as a synonym of O. rufipogon.[8] It may be treated as the annual form of O. rufipogon.[2]

For those who accept it as a separate species, it is an annual, short to intermediate height (usually <2 metres (6 ft 7 in)) grass; panicles usually compact, rarely open; spikelets large, 6–10.4 millimetres (0.24–0.41 in) long and 1.9–3.4 millimetres (0.075–0.134 in) wide, with strong awn (4–10 centimetres (1.6–3.9 in) long); anthers 1.5–3 millimetres (0.059–0.118 in) long. It grows in shallow water up to 0.3 metres (1 ft 0 in), in seasonally dry and open habitats. It is found growing in swampy areas, at edge of pond and tanks, beside streams, in ditches, in or around rice fields.[5]

  1. ^ Phillips, J.; Yang, L.; Vaughan, D. (2017). "Oryza nivara". IUCN Red List of Threatened Species. 2017: e.T112680564A113899490. doi:10.2305/IUCN.UK.2017-3.RLTS.T112680564A113899490.en. Retrieved 20 November 2021.
  2. ^ a b Choi, Jae Young; Platts, Adrian E.; Fuller, Dorian Q.; Hsing, Yue-Ie; Wing, Rod A.; Purugganan, Michael D. (2017-01-12). "The rice paradox: Multiple origins but single domestication in Asian rice". Molecular Biology and Evolution. 34 (4): 969–979. doi:10.1093/molbev/msx049. ISSN 0737-4038. PMC 5400379. PMID 28087768.
  3. ^ Haritha, Guttikonda; Malathi, Surapaneni; Divya, Balakrishnan; Swamy, B. P. M.; Mangrauthia, S. K.; Sarla, Neelamraju (2018), Mondal, Tapan K.; Henry, Robert J. (eds.), "Oryza nivara Sharma et Shastry", The Wild Oryza Genomes, Compendium of Plant Genomes, Cham: Springer International Publishing, pp. 207–238, doi:10.1007/978-3-319-71997-9_20, ISBN 978-3-319-71997-9
  4. ^ Gressel, Jonathan (2020-03-03). Genetic Glass Ceilings: Transgenics for Crop Biodiversity. JHU Press. ISBN 978-1-4214-2913-7.
  5. ^ a b Rana, M. K. (2014-06-01). Vegetables and their Allied as Protective Food. Scientific Publishers. ISBN 978-93-86237-56-9.
  6. ^ Driem, George Van (2011-01-01). "Lost In The Sands Of Time Somewhere North Of The Bay Of Bengal". Himalayan Languages and Linguistics: 11–38. doi:10.1163/ej.9789004194489.i-322.10. ISBN 9789004216532.
  7. ^ "Oryza nivara S. D. Sharma & Shastry". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2024-07-14.
  8. ^ "Oryza nivara S.D.Sharma & Shastry". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-07-20.