ArticlePlant physiology1999
Long-day up-regulation of a GAMYB gene during Lolium temulentum inflorescence formation.
Article in Plant physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed, 104 citations in OpenAlex.
- Gene Regulatory Network Controlling Flower Development in Spinach (International journal of molecular sciences · 2024Article
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- Genetic insights into the dissolution of dioecy in diploid persimmon Diospyros oleifera Cheng.BMC plant biology · 2023Article
- Transcriptome sequencing and DEG analysis in different developmental stages of floral buds induced by potassium chlorate inPlant biotechnology (Tokyo, Japan) · 2022Article
- 14-3-3 gene of Zostera japonica ZjGRF1 participates in gibberellin signaling pathway.Molecular biology reports · 2022Article
- Evolution and functional diversification of R2R3-MYB transcription factors in plants.Horticulture research · 2022Article
- A genome wide association study to dissect the genetic architecture of agronomic traits in Andean lupin (Frontiers in plant science · 2022Article
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- A Novel R2R3-MYB GeneFrontiers in plant science · 2021Article
- TheHorticulture research · 2020Article
- Genome-wide association studies for yield-related traits in soft red winter wheat grown in Virginia.PloS one · 2019Article
- Article
- Transcriptome Analysis of Flower Sex Differentiation in Jatropha curcas L. Using RNA Sequencing.PloS one · 2016Article
- The Evolutionary History of R2R3-MYB Proteins Across 50 Eukaryotes: New Insights Into Subfamily Classification and Expansion.Scientific reports · 2015Article
- Does gibberellin biosynthesis play a critical role in the growth of Lolium perenne? Evidence from a transcriptional analysis of gibberellin and carbohydrate metabolic genes after defoliation.Frontiers in plant science · 2015Article
- Cloning and expression analysis of an MYB gene associated with calyx persistence in Korla fragrant pear.Plant cell reports · 2014Article
- A GAMYB homologue CsGAMYB1 regulates sex expression of cucumber via an ethylene-independent pathway.Journal of experimental botany · 2014Article
- Genome-wide characterization and comparative analysis of R2R3-MYB transcription factors shows the complexity of MYB-associated regulatory networks in Salvia miltiorrhiza.BMC genomics · 2014Article
- Article
- Gibberellins regulate the transcription of the continuous flowering regulator, RoKSN, a rose TFL1 homologue.Journal of experimental botany · 2012Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Long-day exposure of the grass Lolium temulentum may regulate flowering via changes in gibberellin (GA) levels. Therefore, we have examined both GA levels and expression of a MYB transcription factor that is specific to the GA signal transduction pathway in monocots. This MYB gene from L. temulentum shows over 90% nucleotide identity with the barley and rice GAMYB genes, and, like them, gibberellic acid (GA3) up-regulates its expression in the seed. Furthermore, cDNAs of both the barley and L. temulentum GAMYB show the same simple patterns of hybridization with digests of L. temulentum genomic DNA. Compared with vegetative shoot apices of L. temulentum, the in situ mRNA expression of LtGAMYB does not change during the earliest steps of "floral" initiation at the apex. However, by 100 h (the double-ridge stage of flowering) its expression increased substantially and was highest in the terminal and lateral spikelet sites. Thereafter, expression declined overall but then increased within stamen primordia. Prior to increased LtGAMYB expression, long-day exposure sufficient to induce flowering led to increased (5- to 20-fold) levels of GA1 and GA4 in the leaf. Thus, increases first in GA level in the leaf followed by increased expression of LtGAMYB in the apex suggest important signaling and/or response roles in flowering.
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