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Small RNAs in Arabidopsis hybrid siliques

ABSTRACT: Five days post-fertilization siliques were collected for RNA extraction. After purification, small RNA libraries were generated for high throughput sequencing. Resulting sequences were analyzed to determine the contribution of the paternal genome to the small RNA transcriptome. Keywords: Epigenetics

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE15348 | GEO | 2009/03/24

SECONDARY ACCESSION(S): PRJNA116579

REPOSITORIES: GEO

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Small RNAs in Arabidopsis hybrid siliques

Project description:Five days post-fertilization siliques were collected for RNA extraction. After purification, small RNA libraries were generated for high throughput sequencing. Resulting sequences were analyzed to determine the contribution of the paternal genome to the small RNA transcriptome. Keywords: Epigenetics 4 unique samples. small RNAs purified from Arabidopsis siliques 5 days after pollination. Samples were selfed or hybrid crosses between ecotypes Columbia (Col) and Landsberg erecta (Ler).

2009-03-24 | E-GEOD-15348 | biostudies-arrayexpress

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Project description:In this study, we compared the siliques from Arabidopsis thaliana under salt stress (Ss) with those in the control (Cs). The results showed that Khib was abundant in siliques. However, there were certain significant differences between the Ss and the Cs: Totally 3,810 normalized Khib sites on 1,254 proteins were identified in siliques under salt stress, and Khib was up-regulated at 96 sites on 78 proteins while down-regulated at 282 sites on 205 proteins in Ss silique. Among them, 13 proteins, including F4IVN6, Q9M1P5, and Q9LF33, had sites with the most significant regulation Khib modification. Bioinformatics analysis suggests that Khib mainly participates in glycolysis/gluconeogenesis and endocytosis. In particular, there were 117 Khib-modified proteins that were mapped to the protein interaction database, and the proteins with the most significant up-regulation of Khib sites were on P46422, O82514, Q38970, Q9LD57, and Q9STW6, while the most down-regulated sites were on Q9M9K1, Q9SF16, O24456, P83484, Q9FWA3, and P54609. In the KEGG pathway enrichment analysis, Khib-modified proteins were enriched in several pathways related to energy metabolism, including gluconeogenesis pathway, pentose phosphate pathway, and pyruvate metabolism.

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