Taxon: Oryza punctata Kotschy ex Steud.

A declared noxious weed by USDA-APHIS.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

FL*, MA*, NC*.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• red rice   (Source: USDA/APHIS ) – English
  
• arroz-selvagem   (Source: D. Groth, p.c. 2005) – Portuguese (Brazil)
  

More:

see MMPND for additional names in foreign scripts

Economic importance:

• Gene sources: secondary genetic relative; potential gene source for rice   (based on genome (B-carrier) constitution fide Proc Natl Acad Sci 96:1404. 1999; Brar & Khush 198. 2002, for pest resistance)
  
• Weed: also potential seed contaminant   (fide Weed CIBA)
  

Distributional range:

      Native:

• AFRICA
  Northeast Tropical Africa: Sudan
  East Tropical Africa: Kenya; Tanzania; Uganda
  West-Central Tropical Africa: Zaire
  West Tropical Africa: Cote D'Ivoire; Ghana; Nigeria; Togo
  South Tropical Africa: Angola; Zimbabwe
  Southern Africa: South Africa - KwaZulu-Natal [n.]; Swaziland
  Western Indian Ocean: Madagascar

References:

• PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) - on-line resource. (PROTABASE)
• Bao, Y. et al. 2005. Identification of genomic constitution of Oryza species with the B and C genomes by the PCR-RFLP method. Genet. Resources Crop Evol. 52:69–76. [this study evaluates genomic constitution of accessions of the O. officinalis complex; comments that this name applies to African 2x, although this study finds African 4x, BC-genome carriers usually called O. schweinfurthiana].
• Brunel, J. F. et al., eds. 1984. Flore analytique du Togo. Phanerogames. (F Togo)
• CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) (Weed CIBA)
• Exell, A. W. et al., eds. 1960–. Flora zambesiaca. (F Zamb)
• Ge, S. et al. 1999. Phylogeny of rice genomes with emphasis on origins of allotetraploid species. Proc. Natl. Acad. Sci. U.S.A. 96:14400–14405. [this study used nuclear & chloroplast genes to reconstruct the phylogeny of the genus; it examined diploid O. punctata that clustered sister to 4x O. eichingeri & together sister to 4x O. minuta, all B-genome carriers].
• Gibbs-Russell, G. E. et al. 1990. Grasses of southern Africa. Mem. Bot. Surv. S. Africa vol. 58. (Grass SAfr)
• Groth, D. 2005. pers. comm. [re. Brazilian common names].
• Keay, R. W. J. & F. N. Hepper. 1953–1972. Flora of west tropical Africa, ed. 2. (F WT Afr)
• Li, C.-B. et al. 2001. Identification of genome constitution of Oryza malampuzhaensis, O. minuta, and O. punctata by multicolor genomic in situ hybridization. Theor. Appl. Genet. 103:201–211. [this study shows that diploid populations are restricted to Africa & the B-genome of this taxon might not be related to the one in Asian O. minuta].
• Plant Protection and Quarantine Office. United States Department of Agriculture, Animal and Plant Health Inspection Service. Federal noxious weed list. (USDA/APHIS)
• Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) - on-line resource. (Pl Names)
• Sharma, S. D. 2003. Nomenclatural confusions in genus Oryza. In: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza. (Monog Oryza) 355.
• Sharma, S. D. 2003. Species of genus Oryza and their interrelationships. In: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza. (Monog Oryza) 85.
• Tateoka, T. 1963. Taxonomic studies of Oryza. III. Key to the species and their enumeration. Bot. Mag. (Tokyo) 76:170.
• Turrill, W. B. et al., eds. 1952–. Flora of tropical East Africa. (F TE Afr)
• Vaughan, D. A. et al. 2003. Diversity in the Oryza genus. Curr. Opinion Pl. Biol. 6:140–141. [this review recognizes this taxon as a diploid (2n=24) BB-genome & tetraploid (2n=48) BBCC-genome, each occupying different habitats].
• Vaughan, D. A. 1989. The genus Oryza L. Current status of taxonomy. Int. Rice Res. Inst. Techn. Pap. 138:8, 17.
• Vaughan, D. A. 2003. Revised key to species in genus Oryza. In: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza. (Monog Oryza) 349.

More:

Search AGRICOLA article citation database for citations referencing Oryza punctata.

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

Check other databases for Oryza punctata Kotschy ex Steud.:

• SIBIS: South African National Biodiversity Institute's (SANBI) Integrated Biodiversity System
• On-line Flora of Zimbabwe
• World Grass Species-Descriptions: Morphological species description from Royal Botanic Gardens, Kew
• Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops
• PROTABASE: Plant Resources of Tropical Africa's (PROTA's) online resource
• 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.

Images:

• Disseminule drawings: U.S. National Seed Herbarium drawing

More:

• Check PlantSystematics.org for additional images
• 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.

Jump to Gramene: A Comparative Mapping Resource for Grains

Abbreviations & symbols in GRIN Taxonomy

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| USDA | ARS | GRIN | NPGS | New Search |

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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?26074 (09 February 2010)

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