Expression data from Andromonoecious poplar flower
Ontology highlight
ABSTRACT:
ORGANISM(S): Populus tomentosa Populus sp.
PROVIDER: GSE38432 | GEO | 2013/07/30
SECONDARY ACCESSION(S): PRJNA167948
REPOSITORIES: GEO
Similar Datasets
Project description:Exceptionally andromonoecious individuals that flowers appeared to form that structure resembling a carpel attached to the reverse side of stamen cup were detected in strictly dioecious poplar. Andromonoecious poplarswere used to analyze transcript levels accurately. We used microarrays to detail the global programme of gene expression during flower development and identified distinct classes of different-regulated genes between sexes during this process.
2013-07-30 | E-GEOD-38432 | biostudies-arrayexpress
Project description:Floral organs, whose identity is determined by specific combinations of homeotic genes, originate from a group of undifferentiated cells called the floral meristem. In Arabidopsis, the homeotic gene AGAMOUS (AG) terminates meristem activity and promotes development of stamens and carpels. To understand the program of gene expression activated by AG, we followed genome-wide expression during early stamen and carpel development. Keywords: Developmental time course
2007-11-15 | GSE9605 | GEO
Project description:Flower maturation consists of several events that contribute to reproductive success as flowers open, including petal expansion, stamen filament elongation, pollen release, nectary maturation, stigma growth, and gynoecium maturation to support pollen tube growth. The Arabidopsis transcription factors ARF6 (Auxin Response Factor 6) and ARF8 regulate all of these processes, in part by activating jasmonate biosynthesis. Jasmonates in turn activate genes encoding the transcription factors MYB21 and MYB24, which mediate a subset of the processes controlled by ARF6 and ARF8. This experiment was designed to characterize gene expression in flowers before and after they open, and to determine how arf6 arf8 and myb21 myb24 mutation combinations affect these gene expression patterns.
2011-12-10 | GSE32193 | GEO
Project description:Flower maturation consists of several events that contribute to reproductive success as flowers open, including petal expansion, stamen filament elongation, pollen release, nectary maturation, stigma growth, and gynoecium maturation to support pollen tube growth. The Arabidopsis transcription factors ARF6 (Auxin Response Factor 6) and ARF8 regulate all of these processes, in part by activating jasmonate biosynthesis. Jasmonates in turn activate genes encoding the transcription factors MYB21 and MYB24, which mediate a subset of the processes controlled by ARF6 and ARF8. This experiment was designed to characterize gene expression in flowers before and after they open, and to determine how arf6 arf8 and myb21 myb24 mutation combinations affect these gene expression patterns. Three biological replicates were prepared at each of two developmental stages, stage 12 (oldest closed buds) and stage 13 (youngest open flowers), for three genotypes (Wild type, arf6-2 arf8-3, and myb21-5 myb24-5). For the mutant genotypes, stage 13 flowers do not actually open, so corresponding flowers of equivalent age were chosen based on the position of open flowers in wild-type inflorescences.
2011-12-10 | E-GEOD-32193 | biostudies-arrayexpress
Project description:Canna indica L. is an ornamental plant with petaloid staminodes and only a half fertile stamen in its flowers. The genetic basis for petaloid androecium remains unclear. In order to get comprehensive transcriptome data for further studies, RNA-Seq analysis were carried out. Two libraries from flower primordia and differentiated flowers of Canna indica were constructed and sequenced respectively, and totally 118,869 unigenes were assembled. The unigenes were aligned to the protein databases NR, NT, Swiss-Prot, KEGG, COG and GO (e-value<0.00001), and totally 67,299 unigenes were annotated. Our data constitute a preliminary basis for further studies on flower development of Canna indica.
2016-09-01 | GSE72440 | GEO
Project description:Canna indica L. is an ornamental plant with petaloid staminodes and only a half fertile stamen in its flowers. The genetic basis for petaloid androecium remains unclear. In order to get comprehensive transcriptome data for further studies, RNA-Seq analysis were carried out. Two libraries from flower primordia and differentiated flowers of Canna indica were constructed and sequenced respectively, and totally 118,869 unigenes were assembled. The unigenes were aligned to the protein databases NR, NT, Swiss-Prot, KEGG, COG and GO (e-value<0.00001), and totally 67,299 unigenes were annotated. Our data constitute a preliminary basis for further studies on flower development of Canna indica. The two samples from flower primordium and differentiated flower were sequenced for transcriptome assembly, and gene expression information of the two stages was also obtained from these data.
2016-09-01 | E-GEOD-72440 | biostudies-arrayexpress
Project description:The chromatin modification H3K27me3 is involved in almost every developmental stage in Arabidopsis. Much remains unknown about the dynamic regulation of this histone modification in flower development and control of self-fertility. Here we demonstrate that the H3K27me3-specific demethylases ELF6 and JMJ13 antagonistically regulate carpel and stamen growth and thus modulate self-fertility. Transcriptome and epigenome data are used to identify potential targets of ELF6 and JMJ13 responsible for these physiological functions. We find that ELF6 relieves expansin genes of epigenetic silencing to promote cell elongation in the carpel, enhancing carpel growth and therefore encouraging out-crossing. On the other hand, JMJ13 activates genes of the jasmonic acid regulatory network alongside the auxin responsive SAUR26, to inhibit carpel growth, enhance stamen growth, and overall promote self-pollination. Our evidence provides novel mechanisms of self-fertility regulation in A.thaliana demonstrating how chromatin modifying enzymes govern the equilibrium between flower self-pollination and out-crossing.
2021-02-09 | GSE164739 | GEO
Project description:Transcription profiling of carpel development in tomato strains RP75/59 and UC82. Samples: fruit 3 days post anthesis, carpel of flower anthesis, carpel of flower bud to pre-anthesis ( petals length between 7.5 and 9mm), Carpel of flower bud (petals length between 4.5 and 7 mm). Control plants and plants in which flowers were emasculated two days before anthesis were studied.
2009-05-29 | E-MEXP-1643 | biostudies-arrayexpress
Project description:To elucidate the molecular mechanism of stamen abortion underlying sex differentiation from transcriptomic aspects in Handeliodendron bodinieri, we use abnormal stamens before and after abortion in female flowers and normal stamen in male flowers at the same stage as control material. Key genes regulating stamen abortion was identified by using RNA-seq technique. The results show that it was abortion science stage 6 during anther development, at the same time, HbGPAT, HbAMS, HbLAP5, HbLAP3 and HbTES were down-regulated , and HbML5 was up-regulated. Therefore, these information will provide theoretical foundation for the conservation, breeding, scientific research and application of Handeliodendron bodinieri.
2021-07-31 | GSE181240 | GEO