Alternative Transcription Initiation Sites in Soybean Genes

 The discovery of DNA's double helix structure occurred more than 70 years ago. Scientists have found a new way to read this structure within genes. Many species of plants and animals have reference genomes which are used by researchers for their own genetic analysis. The soybean genome is used widely in agricultural research for commercial and industrial purposes. While the soybean reference genome may be very advanced, it was missing locations for transcription initiation sites for individual genes within it-- until now.

Transcription initiation sites are locations in DNA that act as the start of transcription, where an mRNA copy of DNA is synthesized to then be translated into a protein. By finding where these sites are within a genome, it allows for a better understanding of how genes are expressed. Normally, transcription initiation sites are located around a TATA box (a thymine and adenine rich DNA sequence), but researcher and major contributor to the soybean reference genome Jianxin Ma disagrees. He and his researchers found that the predicted transcription initiation sites on the reference gene had only about 3% accuracy based on their new study. They identified transcription initiation sites in roughly 40,000 genes. These sites had sequences that varied from what was normally expected. By further completing the database, it improves its effectiveness as a research tool for many geneticists.

https://www.sciencedaily.com/releases/2024/11/241119181836.htm
https://academic.oup.com/plcell/advance-article/doi/10.1093/plcell/koae288/7900478#493737809

Soybean agriculture and genetic transcription

Findings published in The Plant Cell showed recent advancements in genomic research led by researchers from Purdue University. There was a conventional understanding that each gene had a single transcription initiation site. The research led by Jianxin Ma, discovered that over 97% of previously predicted transcription initiation sites are incorrect, and that soybean genes exhibit different transcription initiation sites. These alternative sites allow the transcription factors to bind in different locations, causing different proteins to be produced from the same gene.

The researchers used STRIPE-seq technology which allowed for clear mapping of the initiation sites across the genome. This data will be incorporated into SoyBase, a database that stores genomic information of soybean by many different researchers. Many other researchers share crucial information for the breeding and cultivation of soybeans. A post-doc researcher from Chilvers lab at Michigan State U created a large, free, publicly available database to show plant breeders trends in resistance and gene efficacy in different regions. Austin went as far as using google translate from old surveys from China and South America that were not in English (which is not a monumental task, as the article might lead you to believe), to produce a better and more complete database of phenotypic data and responses to different stressors.

Soybean seams to be a very collaborative field of science that I would have never expected to have such completeness and level of study. I suppose most agricultural companies nowadays benefit from scientific research for the development of crops and soil as farming becomes more and more pressurized for rises and demands in efficiency. Having 97% of pieces of genomic data corrected is, however, an extremely interesting turnover of the previous literature understanding of this variable.

https://m.farms.com/news/new-resource-for-breeding-better-soybeans-219997.aspx

https://phys.org/news/2024-11-advancements-genomic-reveal-alternative-transcription.html

Dog DNA study maps breeds across the world

Scientists have analyzed 161 breeds of dog's DNA. Over the past 20 years, dogs have been bred to do different things, depending on what they are needed for. Dogs used to be used for hunting and gathering, now there are many hybrid breeds that are available. Dogs origins can be traced to two basic places in the world the United Kingdom or the Mediterranean. Many dogs like the mastiff has not changed genetically over the years. This article was very interesting to read. Dogs are very important in the world and majority of people have them. Now with all these different dog breeds breeding together, this genetic mapping of them will allow us to better understand what dogs are good for what area.

Related Article: http://genome.cshlp.org/content/19/3/500.short

Article: https://www.sciencenews.org/blog/science-ticker/dog-dna-study-maps-breeds-across-world

Obama Unveils Vast Brain-Mapping Project

President Obama has asked congress to commit $100 million dollars in 2014 for the 10 year BRAIN Initiative project, which will record and create a detailed map of the inner workings of the human brain. Knowing more about how the brain works will in theory give a better understanding of and help develop preventative treatments as well as cures for brain disorders such as Alzheimer’s, Parkinson’s, autism, as well as psychiatric conditions and brain injuries. Alzheimer’s being the main target. Tools not yet available will need to be developed to record hundreds of thousands of neurons at once.

"Right now, a billion people worldwide suffer from brain disorders and we have very little capacity to prevent them, treat them, or cure them. Making the 'Brain' project a high priority for decades to come should have a very powerful impact on disorders of the human brain," said John Morrison, dean of the Graduate School of Biomedical Sciences at the Icahn School of Medicine.

Taking part in this initiative are scientist, government agencies including the National Institutes of Health, the Defense Advanced Research Projects Agency and the National Science Foundation and private foundations including The Allen Institute for Brain Science, the Howard Hughes Medical Institute, the Kavli Foundation, and the Salk Institute for Biological Studies. Goals and the multi-year plan will be developed by a group from the government agency, National Institutes of Health, headed by Cornelia Bragmann of Rockefeller University and William Newsome of Stanford University.

http://health.usnews.com/health-news/news/articles/2013/04/02/obama-unveils-vast-brain-mapping-project