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Next generation sequencing facilitates quantitative analysis of maize 35 mitochondrial genes in dek53-ref and wild-type (WT) kernels

ABSTRACT: Next generation sequencing facilitates quantitative analysis of maize 35 mitochondrial genes in dek53-ref and wild-type (WT) kernels

PROVIDER: PRJNA593058 | ENA |

REPOSITORIES: ENA

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Next generation sequencing facilitates quantitative analysis of maize 35 mitochondrial genes in dek53-ref and wild-type (WT) kernels

Project description:Analysis of 35 mitochondrial genes expression level in dek53-ref and WT kernels at 15 days after pollination (DAP)

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Project description:The goals of this study are to compare NGS-derived transcriptomes (RNA-Seq) derived from ded1-ref mutant and normal maize endosperm tissue. Homozygous ded1-ref mutants exhibit a seed defect. Maize Ded1 encodes a transcription factor. This study characterizes DEGs between ded1-ref and normal endosperm and serves to identify direct target genes together with DAP-seq data.

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Phenotypic and molecular characterisation of a novel Bt2 allele in maize

Project description:At 35 DAP whole kernels (pericarp + endosperm + embryo) without glumes of green house grown ears of heterozygous (+/bt2-H2328), self-pollinated plants were visually divided into pools of phenotypically normal looking kernels (small indentation, slightly smaller than mutant kernels, genotype +/+ or +/bt2-H2328) and pools of phenotypically mutant kernels (plump, round kernels, slightly larger than normal kernels, genotype bt2-H2328/bt2-H2328). Pools consisted of 4 kernels. 3 different ears were used for a biological duplicate. Keywords: gene knock out

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Project description:The goals of this study are to study the regulatory network of the two maize endosperm-specific transcription factors O2 and PBF by 16-DAP endosperm transcriptome profiling (RNA-seq) of their mutants and wild type. The results utilize the expression pattern of global genes regulated by PBF and O2 to elucidate their control for storage compounds synthesis in maize kernels.

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Project description:Two maize inbred lines, DAN3130 and JI63, with different patterns of folate accumulation and different total folate contents in mature kernels were used to investigate the transcriptional regulation of folate metabolism during late stages of kernel formation by comparative transcriptome analysis; The fresh kernel samples of each inbred line were collected on DAP 24, DAP 35 days, respectively. Mature kernel samples were harvested after all the plants turned yellow. Three biological replicates of each sample were collected, and total RNA with high quality was pooled and sent for sequencing. Total RNA of high quality was pooled for transcriptome analysis, and raw RNA-seq data of DAP 24, DAP35 and mature kernels for both two inbred lines were obtained. The folate accumulation during DAP 24 to mature kernels could be controlled by circumjacent pathways of folate biosynthesis, such as pyruvate metabolism, glutamate metabolism and serine/glycine metabolism. In addition, the folate variation between these two inbred lines was related to those genes among folate metabolism, such as genes in the pteridine branch, ρ-ABA branch, serine/THF/5-M-THF cycle and the conversion of tetrahydrofolate monoglutamate to tetrahydrofolate polyglutamate; The findings provided insight into folate accumulation mechanisms during maize kernel formation to promote folate biofortification.

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Project description:35 samples

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