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Sunday, 2013/06/09 | 19:34:02

Scientists have discovered the genetic sequence to breed higher yielding and disease tolerant cacao trees that could produce better tasting chocolate. In a collaborative research conducted by Mars, US Department of Agriculture, Indiana University, Hudson-Alpha Institute, and IBM, genetic markers were identified for the most popular green-podded Costa Rican Matina and its Amelondao clones. The Matina is popular for its high yield and pleasant flavor.

Friday, 2013/06/07 | 08:06:01

The wild species of the genus Oryza contain a largely untapped reservoir of agronomically important genes for rice improvement. Here we report the 261-Mb de novo assembled genome sequence of Oryza brachyantha. Low activity of long-terminal repeat retrotransposons and massive internal deletions of ancient long-terminal repeat elements lead to the compact genome of Oryza brachyantha

Thursday, 2013/06/06 | 11:27:53

More than 5,000 accessions of traditional rices and 160 populations of four wild rices species (Oryza rufipogon, O. nivara, O. officinalis, O. granulata) were collected and preserved at the VAAS gene bank in Vietnam. Wild species of Oryza are an important of useful genes for resistance to major diseases and insects, tolerance for abiotic stresses, and a new source of cytoplasmic male sterility (CMS).

Thursday, 2013/06/06 | 08:03:39

Xa27 is one of the important R-genes, effective against bacterial blight disease of rice caused by Xanthomonas oryzae pv. oryzae (Xoo). Using natural population of Oryza, we analyzed the sequence variation in the functionally important domains of Xa27 across the Oryza species. DNA sequences of Xa27 alleles from 27 rice accessions revealed higher nucleotide diversity among the reported R-genes of rice

Wednesday, 2013/06/05 | 08:13:52

Oryza, which includes rice and wild relatives, is a useful genus to study leaf properties in order to identify structural features that control CO2 access to chloroplasts, photosynthesis, water use efficiency and drought tolerance. Traits, 26 structural and 17 functional, associated with photosynthesis and transpiration were quantified on 24 accessions (representatives of 17 species and 8 genomes).

Wednesday, 2013/06/05 | 08:12:42

Malaria control is reliant on the use of long-lasting pyrethroid-impregnated nets and/or indoor residual spraying (IRS) of insecticide. The rapid selection and spread of operationally significant pyrethroid resistance in African malaria vectors threatens our ability to sustain malaria control.

Tuesday, 2013/06/04 | 08:09:39

Rice (Oryza sativa) varieties differ considerably in their tolerance to submergence, a trait that has been associated with the SUB1A gene. Recently, this gene was found in some wild rice species and landraces, which along with O. sativa, belong to the AA genome type group.

Tuesday, 2013/06/04 | 08:07:34

One of the top things on a geneticist’s wish list has to be a set of mutants for every gene in their particular organism. Such a set was produced for the yeast, Saccharomyces cerevisiae near the end of the 20th century by a consortium of yeast geneticists

Monday, 2013/06/03 | 08:13:28

The wild relatives of rice contain a virtually untapped reservoir of traits that can be used help drive the 21st century green revolution aimed at solving world food security issues by 2050. To better understand and exploit the 23 species of the Oryza genus the rice research community is developing foundational resources composed

Sunday, 2013/06/02 | 14:43:53

The latest study to tackle this question has yielded mixed results. While 50 years of inorganic fertilization did increase soil organic carbon stocks in a long-term experiment in western Kansas, the practice seemingly failed to enhance soil aggregate stability—a key indicator of soil structural quality that helps dictate how water moves through soil and soil’s resistance to erosion.

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