The Recessive Allele in the Soybean Maturity Locus E9 Causes Delayed FloweringJanuary 20, 2016
In soybean, the molecular basis of natural variation in time to flowering and maturity is poorly understood. Using a cross between early-maturing soybean cultivars, Chen Zhao from Hokkaido University led researchers to study the soybean flowering genes. They focused on E9 locus, one of two maturity loci in the progeny.
Analysis revealed that E9 is an ortholog of Arabidopsis FLOWERING LOCUS T, (FT2a). The recessive e9 allele was transcribed at a very low level compared with the dominant E9 allele, causing delay in flowering. The recessive e9 allele also had a Ty1/copia–like retrotransposon, SORE-1, inserted in its first intron. This insertion decreased FT2a expression through allele-specific transcriptional repression.
The soybean maturity gene E9's recessive allele delays flowering because of its low expression. E9's low expression is due to allele-specific transcriptional repression caused by the SORE-1, insertion in the recessive allele.
For more information, read the full article on BMC Plant Biology.
The Crop Biotech Update is a weekly newsletter of ISAAA, a non-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Global Pipeline of GM Crops out to 2020
- Growing Demand for Food, Fuel Drives Global Agricultural Biotechnology Market
- Researchers Discover Core Set of Genes for Plant-Fungal Symbiosis
- Draft Lentil Genome Assembly Released
- FDA Approves Second Generation Innate® Potatoes
- Modifying the Structure of Wood Alters Plant Microbiome
- VIB Researchers Discover New Mechanism for Root Development
- Wall-Associated Kinases Participate in Defense Against Rice Blast
- WOX Genes Function in Protoderm and Suspensor Development in Norway Spruce
- The Recessive Allele in the Soybean Maturity Locus E9 Causes Delayed Flowering
Beyond Crop Biotech
- Pioneering Study Helps Fight Against Ash Dieback
- Enhanced Free Fatty Acid Production of Synechocystis sp. by Deletion of the CyAbrB2
- MicroRNA-150 Promotes Cervical Cancer by Targeting FOXO4
- Plant Genes and "Omics": Technology Development
- ISAAA in 2015
Subscribe to CBU: