Domestication has altered gene expression in pea seed coat
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ABSTRACT:
PROVIDER: PRJNA1026526 | ENA |
REPOSITORIES: ENA
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Project description:In angiosperms, the mature seed consists of an embryo (E), a seed coat (SC), and, in many cases, an endosperm. In contrast to knowledge about embryo and endosperm, we have relatively little knowledge of SC, especially at the genomics level. In this study, we analyzed the gene expression during seed development using the panel of cultivated and wild pea genotypes. We report the comprehensive gene expression changes related both to development as well as domestication status. Analysis of seed developmental stages revealed extensive modification of gene expression between wild pea progenitor and cultivated pea crop. A significant difference in gene expression dynamics appeared between early and late developmental stages D1, D2, and D3, D4, D5 in wild pea genotypes, where the expression was increased 3-5-fold and 5-10-fold, respectively. Our work extends knowledge about the role of the seed coat during pea seed development. We described gene expression dynamic resulting in specific metabolic profiles providing new insight into pea domestication.
2024-03-18 | GSE244961 | GEO
Project description:Transcriptional profiling during Arabidopsis seed coat development at 3 key developmental timepoints by using 2 mutant lines and their wild types. The data provides a globe view of seed coat development in arabidopsis can be used for identification of new gene candidates for seed coat development.
2011-03-10 | GSE27857 | GEO
Project description:Pea (Pisum. sativum L.) is a traditional and important edible legume that can be sorted into grain pea and vegetable pea according to their harvested maturely or not. Vegetable pea by eating the fresh seed is becoming more and more popular in recent years. These two type peas display huge variations of the taste and nutrition, but how seed development and nutrition accumulation of grain pea and vegetable pea and their differences at the molecular level remains poorly understood. To understand the genes and gene networks regulate seed development in grain pea and vegetable pea, high throughput RNA-Seq and bioinformatics analysis were used to compare the transcriptomes of vegetable pea and grain pea developing seed. RNA-Seq generated 18.7 G raw data, which was then de novo assembled into 77,273 unigenes with a mean length of 930 bp. Functional annotation of the unigenes was carried out using the nr, Swiss-Prot, COG, GO and KEGG databases. There were 459 and 801 genes showing differentially expressed between vegetable pea and grain pea at early and late seed maturation phases, respectively. Sugar and starch metabolism related genes were dramatically activated during pea seed development. The up-regulated of starch biosynthesis genes could explain the increment of starch content in grain pea then vegetable pea; while up-regulation of sugar metabolism related genes in vegetable pea then grain pea should participate in sugar accumulation and associated with the increase in sweetness of vegetable pea then grain pea. Furthermore, transcription factors were implicated in the seed development regulation in grain pea and vegetable pea. Thus, our results constitute a foundation in support of future efforts for understanding the underlying mechanism that control pea seed development and also serve as a valuable resource for improved pea breeding.
2017-02-09 | GSE72573 | GEO
Project description:Transcriptional profiling during Arabidopsis seed coat development at 3 key developmental timepoints by using 2 mutant lines and their wild types. The data provides a globe view of seed coat development in arabidopsis can be used for identification of new gene candidates for seed coat development. 3 seed coat development stages, 4 lines (2 wild type + 2 mutants) of arabidopsis were sampled. 4 biological replicates.
2011-03-10 | E-GEOD-27857 | biostudies-arrayexpress
Project description:Soybean cultivars, OX951 & OX736, comparison of seed coat at 3 growth stages, early, mid & late Keywords: time course
2007-01-01 | GSE4276 | GEO
Project description:12plex_pea_2013_02 - 12plex_pea_2013_02_g - What is the effect of a moderate water stress on seed filling (reserve accumulation) and nitrogen remobilisation in pea (Pisum sativum) - Pea plants (genotype Cameor) were subjected to a moderate water stress at the beggining of the seed filling period (12 Days After Pollination) of the second flowering node for a period of 8 days. Samples were collected from Well Watered (WW) plants at the beginning of the stress imposition (point A, T=0), and from Water-Stressed (WS) and WW control plants at the end of the drought period (point B, T=+8). Samples named SEED consisted of seeds from the pod of the second flowering node (seed-WW-A, seed-WW-B and Seed-WS-B). Samples named LEAF consisted of the leaves and stem sections from the two vegetative nodes below the first flowering node (leaf-WW-A, Leaf-WW-B and Leaf-WS-B). Each sample consited of a pool of 3 individual plants and 4 repetitions per condition were carried out.
2017-04-05 | GSE97237 | GEO
Project description:12plex_pea_2013_02 - 12plex_pea_2013_02_f - What is the effect of a moderate water stress on seed filling (reserve accumulation) and nitrogen remobilisation in pea (Pisum sativum) - Pea plants (genotype Cameor) were subjected to a moderate water stress at the beggining of the seed filling period (12 Days After Pollination) of the second flowering node for a period of 8 days. Samples were collected from Well Watered (WW) plants at the beginning of the stress imposition (point A, T=0), and from Water-Stressed (WS) and WW control plants at the end of the drought period (point B, T=+8). Samples named SEED consisted of seeds from the pod of the second flowering node (seed-WW-A, seed-WW-B and Seed-WS-B). Samples named LEAF consisted of the leaves and stem sections from the two vegetative nodes below the first flowering node (leaf-WW-A, Leaf-WW-B and Leaf-WS-B). Each sample consited of a pool of 3 individual plants and 4 repetitions per condition were carried out.
2017-02-01 | GSE93630 | GEO
Project description:Seed coat colour is determined by the type of pigment deposited in the seed coat cells. It is related to important agronomic traits of seeds, such as seed dormancy, longevity, oil content, protein content and fibre content. In Brassica napus, inheritance of seed coat colour is related to maternal effects and pollen effects (xenia effects). In this research, we isolated a mutation of yellow seeded B. napus controlled by a single Mendelian locus with pollen effect. Microcopy of transverse sections of the mature seed shows pigment is deposited only in the epidermal cells, the first cell layer of seed coat. By Illumina Hiseq 2000 sequencing technology, a total of 12 G clean data, 116x coverage of coding sequences of B. napus, was achieved from 26-day old brown and yellow seeds. It was assembled into 172,238 independent transcripts and 55,637 unigenes by Trinity. A total of 150 orthologous genes of Arabidopsis transparent testa (TT) genes were mapped in silico to 19 chromosomes of B. napus. Only 49 of the TT orthologous genes are transcripted in seeds. However transcription of all the orthologs was independent of the embryonal control of seed coat colour. Of all the Trinity-assembled unigenes, only 55 genes were found to be differentially expressed between the brown seeds and yellow mutant. Among them 50 were up-regulated and 5 were down-regulated in the yellow seeds as compared to the brown counterpart. By KEGG classification, 14 metabolic pathways were enriched significantly. Of these, 5 pathways: phenylpropanoid biosynthesis, cyanoamino acid metabolism, plant hormone signal transduction, metabolic pathways and biosynthesis of secondary metabolites, were related with seed coat pigmentation. Free amino acid quantification showed that Ala and Phe were produced at higher levels in the embryo of yellow seeds as compared to brown seeds. This increase was not observed in the seed coat. Moreover, the excess amount of free Ala was exactly twice that of Phe in the 26-day embryo of yellow seeds. Pigment indispensable substrate chalcone is synthesized from two molecules of Ala and one molecule of Phe. The correlation between accumulation of Ala and Phe and disappearance of pigment in the yellow seeded mutant indicate that embryonal control of seed coat colour is related with Phe and Ala metabolism in the embryo of B. napus.
2018-05-19 | GSE69137 | GEO
Project description:Transcriptomic profiling of an rpoS mutant of Pseudomonas protegens Pf-5 in comparison to the wild-type Pf-5 strain grown on pea seed surfaces for 24h.
2012-12-31 | GSE38631 | GEO
Project description:Transcriptomic profiling of a gacA mutant of Pseudomonas protegens Pf-5 in comparison to the wild-type Pf-5 strain grown on pea seed surfaces for 24h.
2012-12-31 | GSE38630 | GEO