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Oryza longiglumis

Nadar Khan, Tomoyuki Katsube-Tanaka, Shuichi Iida, Takeshi Yamaguchi, Junichi Nakano, Hisashi Tsujimoto
In efforts to find genetic resources with high nutritional value of rice seed, we assessed the diversity of the major storage protein glutelin in 13 wild and 2 cultivated rice species by a unique SDS-PAGE method and subunit-specific antibodies. Maximum separation of microheterogeneous glutelin alpha-polypeptides, which is a prerequisite for the diversity evaluation, could be attained by SDS-PAGE performed at higher temperature (45 degrees C) than the generally employed temperatures (4-25 degrees C). Seven antipeptide antibodies were raised against subunit-specific epitope sequences designed at five sites from four variable regions spanning the glutelin alpha-polypeptides...
March 2008: Electrophoresis
R K Aggarwal, D S Brar, G S Khush
The genus Oryza to which cultivated rice belongs has 24 species (2n = 24 or 48), representing seven genomes (AA, BB, CC, EE, FF, BBCC and CCDD). The genomic constitution of five of these species is unknown. These five species have been grouped into two species complexes, the tetraploid ridleyi complex (O. ridleyi, O. longiglumis) and the diploid meyeriana complex (O. granulata, O. meyeriana, O. indandamanica). To evaluate the genomic structure of these species in terms of divergence at the molecular level vis-a-vis other known genomes of Oryza, we used the total genomic DNA hybridization approach...
March 18, 1997: Molecular & General Genetics: MGG
C Hsiao, N J Chatterton, K H Asay, K B Jensen
Entire sequences of the internal transcribed spacers (ITSs) and 5.8S subunit of nuclear ribosomal DNA (nrDNA) were obtained from nine grass species by direct double-stranded sequencing of polymerase chain reaction (PCR) amplified DNA fragments. These sequences from subfamily Pooideae (Triticum aestivum, Crithodium monococcum, Sitopsis speltoides, Hordeum vulgare, Secale montanum, Avena longiglumis, Bromus inermis, Brachypodium distachyon) and subfamily Panicoideae (Sorghum bicolor) together with published ITS sequence of rice (Oryza sativa, Bambusoideae) were analyzed using Wagner parsimony (PAUP) and the neighbor-joining distance method to assess the phylogenetic utility of ITS sequences at various taxonomic levels...
February 1994: Genome GĂ©nome / Conseil National de Recherches Canada
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