2 results
Is all red rice found in commercial rice really Oryza sativa?
- L. Kelly Vaughan, Brian V. Ottis, Ann M. Prazak-Havey, Concetta A. Bormans, Clay Sneller, James M. Chandler, William D. Park
-
- Journal:
- Weed Science / Volume 49 / Issue 4 / August 2001
- Published online by Cambridge University Press:
- 20 January 2017, pp. 468-476
-
- Article
- Export citation
-
All red rice found in commercial rice in the United States has traditionally been classified as Oryza sativa ssp. indica. This assumption was tested by analyzing red rice samples collected from across the southern United States rice belt with 18 simple sequence length polymorphism (SSLP) markers distributed across all 12 chromosomes. The results clearly demonstrate that the traditional classification of red rice is inadequate. Some red rice is closely related to O. sativa ssp. indica cultivated rice. However, other red rice is more closely related to O. sativa ssp. japonica. Most importantly, some red rice samples collected from Arkansas, Louisiana, Mississippi, and Texas form a distinct group that includes a number of Oryza nivara and Oryza rufipogon accessions from the National Small Grains Center. In particular, red rice samples from three states were identified that for all 18 markers are identical to the O. rufipogon accession IRGC 105491. These different classes of red rice are intermingled across the southern U.S. rice belt and within individual production fields. Oryza sativa ssp. indica-like red rice and O. rufipogon-like red rice have been found within a single 9-m2 collection site. While the classification of red rice as O. sativa ssp. indica, O. sativa ssp. japonica, or O. rufipogon using DNA markers is generally in agreement with classification based on simple morphological traits, readily observed morphological traits alone are not sufficient to reliably classify red rice. Because red rice is much more diverse than previously assumed, this diversity must be considered when developing red rice management strategies.
Contributors
-
- By Linda S. Aglio, Cyrus Ahmadi Yazdi, Syed Irfan Qasim Ali, Caryn Barnet, Jessica Bauerle, Felicity Billings, Evan Blaney, Beverly Chang, Christopher Chen, Zinaida Chepurny, Hyung Sun Choi, Allison Clark, Lauren J. Cornella, Lisa Crossley, Michael D’Ambra, Galina Davidyuk, Whitney de Luna, Manisha S. Desai, Sukumar P. Desai, Kelly G. Elterman, Michaela K. Farber, Iuliu Fat, Jaida Fitzgerald, Devon Flaherty, John A. Fox, Gyorgy Frendl, Rejean Gareau, Joseph M. Garfield, Andrea Girnius, Laverne D. Gugino, J. Tasker Gundy, Carly C. Guthrie, Lisa M. Hammond, M. Tariq Hanifi, James Hardy, Philip M. Hartigan, Thomas Hickey, Richard Hsu, Mohab Ibrahim, David Janfaza, Yuka Kiyota, Suzanne Klainer, Benjamin Kloesel, Hanjo Ko, Bhavani Kodali, Vesela Kovacheva, J. Matthew Kynes, Robert W. Lekowski, Joyce Lo, Jeffrey Lu, Alvaro A. Macias, Zahra M. Malik, Erich N. Marks, Brendan McGinn, Jonathan R. Meserve, Annette Mizuguchi, Srdjan S. Nedeljkovic, Ju-Mei Ng, Michael Nguyen, Olutoyin Okanlawon, Jennifer Oliver, Krishna Parekh, Jessica Patterson, Christian Peccora, Pete Pelletier, Sujatha Pentakota, James H. Philip, Marc Philip T. Pimentel, Timothy D. Quinn, Elizabeth M. Rickerson, Susan L. Sager, Julia Serber, Shaheen Shaikh, Stanton Shernan, David Silver, Alissa Sodickson, Pingping Song, George P. Topulos, Agnieszka Trzcinka, Richard D. Urman, Rosemary Uzomba, Joshua Vacanti, Assia Valovska, Michael Vaninetti, Scott W. Vaughan, Kamen Vlassakov, Christopher Voscopoulos, Emily L. Wang, Laura Westfall, Zhiling Xiong, Stephanie Yacoubian, Dongdong Yao, Martin Zammert, Maksim Zayaruzny, Jose Luis Zeballos, Natthasorn Zinboonyahgoon, Jie Zhou
- Edited by Linda S. Aglio, Robert W. Lekowski, Richard D. Urman
-
- Book:
- Essential Clinical Anesthesia Review
- Published online:
- 05 February 2015
- Print publication:
- 08 January 2015, pp xi-xvi
-
- Chapter
- Export citation