Rice gene expression in irrigated and rainfed fields during two seasons
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ABSTRACT:
ORGANISM(S): Oryza sativa
PROVIDER: GSE73609 | GEO | 2015/10/01
SECONDARY ACCESSION(S): PRJNA297424
REPOSITORIES: GEO
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Project description:To identify the concurrent effects of multiple environmental factors on gene expression under natural climatic fluctuations in rice, we examined global gene expression patterns in two fields typical of the main modes of rice cultivation, over two seasons, each comprising 15 time-points in three different genotypes Two time-series of 15 time-points, one for each season (dry and wet) over two different fields
2015-10-01 | E-GEOD-73609 | biostudies-arrayexpress
Project description:The genome structrure of domesticated species is influenced by complexity of breeding practices exercised by humans. Hokkaido is the northern-most regio of Japan, and one of northern limit of rice cultivation of world. The climatic conditions of Hokkaido are considered to be unsuitable for rice cultivation. Rice breeding programs of Hokkaido have focused on adaptability to specific local environmental condiitons (such as short growth period, low temperature conditions). These specific selection pressures have generated the unique genetic structures of Hokkaido rice cultivars. The genotype of sixty-three Hokkaido rice varieties were already analyzed by SSR marker, and the results showed that Hokkaido rice varieties were classified into six groups (Shinada et al, 2014). The unique genomic structures of six groups may have related to specific gene expression. This study analyze the gene expression profiles of Hokkaido rice variety.
2014-10-31 | GSE57645 | GEO
Project description:The genome structrure of domesticated species is influenced by complexity of breeding practices exercised by humans. Hokkaido is the northern-most regio of Japan, and one of northern limit of rice cultivation of world. The climatic conditions of Hokkaido are considered to be unsuitable for rice cultivation. Rice breeding programs of Hokkaido have focused on adaptability to specific local environmental condiitons (such as short growth period, low temperature conditions). These specific selection pressures have generated the unique genetic structures of Hokkaido rice cultivars. The genotype of sixty-three Hokkaido rice varieties were already analyzed by SSR marker, and the results showed that Hokkaido rice varieties were classified into six groups (Shinada et al, 2014). The unique genomic structures of six groups may have related to specific gene expression. This study analyze the gene expression profiles of Hokkaido rice variety. Akage, Hayayuki, Sorachi, Yukara, Norin No15, Hoshinoyume and Kitaake are classified into group I, II, IIIa, IIIb, IV, V and V, respectively. Full-expanded third leaf blade was used for this study. Biological replicates; 2 (Yukara, Kitaake) , 3 (Akage, Hayayuki, Sorachi, Norin No.15, Hoshinoyume). 1 samples derived from 5 plants grown under same conditons
2014-10-31 | E-GEOD-57645 | biostudies-arrayexpress
Project description:To examine the difference of the endometrial conditions in the cows between on summer and autumn seasons, gene expression profiles were compared. The expressions of 268 genes were significantly higher in the endometrium collected on summer than those on autumn, whereas 369 genes were lower (P<0.05 or lower). Transcripts of GP2 and NTS were more abundant in the endometrium of summer than those of autumn (P<0.05). In contrast, the mRNA expressions of CDH1 and HSPH1 were lower in the endometrium of summer seasons (P<0.1). Collectively, the different gene expression profiles may contribute to functional differences of endometrium between the summer and autumn seasons, and GP2 and NTS may have a relevance to endometrial deficiency that cause infertility of cows on summer seasons.
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Project description:We use a human whole genome microarray to analyze the effects of nanosecond pulsed electric fields on Jurkat cells with the focus on early response genes to DNA damage. Keywords: nanosecond pulsed electric fields, jurkat cells, DNA damage
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Project description:Rice gene expression in irrigated and rainfed fields during two seasons
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Project description:We used AML12 cells exposured with pulsed extremely low frequency weak magnetic fields for 4 msec at increasing frequency of 1, 2, 3, 4, 5, 6, 7, and 8 Hz for 1 sec each. The 1-to-8 Hz pulses over 8 sec were repeated indefinitely. Peak magnetic intensity was 100 mG. AML12 cells were incubated for 1 h under extremely low frequency weak magnetic fields.
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2011-07-01 | E-GEOD-27697 | biostudies-arrayexpress
Project description:Male song sparrows (Melospiza melodia) are territorial year-round; however, neuroendocrine responses to simulated territorial intrusion (STI) differ between breeding (spring) and non-breeding seasons (autumn). In spring, exposure to STI leads to increases in luteinizing hormone and testosterone, but not in autumn. These observations suggest that there are fundamental differences in the mechanisms driving neuroendocrine responses to STI between seasons. Microarrays, spotted with EST cDNA clones of zebra finch, were used to explore gene expression profiles in the hypothalamus after territorial aggression in two different seasons. Free-living territorial male song sparrows were exposed to either conspecific or heterospecific (control) males in an STI in spring and autumn. Behavioral data were recorded, whole hypothalami were collected, and microarray hybridizations were performed. Quantitative PCR was performed for validation. Our results show 262 cDNAs were differentially expressed between spring and autumn in the control birds. There were 173 cDNAs significantly affected by STI in autumn; however, only 67 were significantly affected by STI in spring. There were 88 cDNAs that showed significant interactions in both season and STI. Results suggest that STI drives differential genomic responses in the hypothalamus in the spring vs. autumn. The number of cDNAs differentially expressed in relation to season was greater than in relation to social interactions, suggesting major underlying seasonal effects in the hypothalamus which may determine the differential response upon social interaction. Functional pathway analyses implicated genes that regulate thyroid hormone action and neuroplasticity as targets of this neuroendocrine regulation.
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Project description:Different fuctional genes have different expression levels in various tissues. Along with the seasons changing, expression level also changes. One-year expression level for functional genes can be indicated by the four seasonal samples and respective time-course change can also be detected. We use microarry chips to study the expression levels for specific genes and explore new functional genes involved in secondary metabolism
2014-03-20 | GSE56023 | GEO