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Full-Text Articles in Life Sciences

Gene Flow Between Divergent Cereal- And Grass-Specific Lineages Of The Rice Blast Fungus Magnaporthe Oryzae, Pierre Gladieux, Bradford Condon, Sebastien Ravel, Darren Soanes, Joao Leodato Nunes Maciel, Antonio Nhani, Li Chen, Ryohei Terauchi, Marc-Henri Lebrun, Didier Tharreau, Thomas Mitchell, Kerry F Pedley, Barbara Valent, Nicholas J. Talbot, Mark L. Farman, Elisabeth Fournier Feb 2018

Gene Flow Between Divergent Cereal- And Grass-Specific Lineages Of The Rice Blast Fungus Magnaporthe Oryzae, Pierre Gladieux, Bradford Condon, Sebastien Ravel, Darren Soanes, Joao Leodato Nunes Maciel, Antonio Nhani, Li Chen, Ryohei Terauchi, Marc-Henri Lebrun, Didier Tharreau, Thomas Mitchell, Kerry F Pedley, Barbara Valent, Nicholas J. Talbot, Mark L. Farman, Elisabeth Fournier

Plant Pathology Faculty Publications

Delineating species and epidemic lineages in fungal plant pathogens is critical to our understanding of disease emergence and the structure of fungal biodiversity and also informs international regulatory decisions. Pyricularia oryzae (syn. Magnaporthe oryzae) is a multihost pathogen that infects multiple grasses and cereals, is responsible for the most damaging rice disease (rice blast), and is of growing concern due to the recent introduction of wheat blast to Bangladesh from South America. However, the genetic structure and evolutionary history of M. oryzae, including the possible existence of cryptic phylogenetic species, remain poorly defined. Here, we use whole-genome sequence …


Market Integration And Price Transmission In The World Rice Export Markets, Bo Chen, Sayed H. Saghaian Sep 2016

Market Integration And Price Transmission In The World Rice Export Markets, Bo Chen, Sayed H. Saghaian

Agricultural Economics Faculty Publications

This paper investigates market integration and asymmetric price transmission in the world rice export markets. Using monthly rice prices from Thailand, Vietnam, and United States, we employ the Johansen test and estimate the threshold vector error correction model (TVECM). Our main findings are that export prices in the three countries are cointegrated, with Thailand and the United States the price leaders, and that the Vietnamese price adjusts faster to long-run equilibrium when it is above its equilibrium level with Thai and U.S. prices. These results suggest market integration and competition rather than collusion are prevalent in world rice markets. Policy …