Scientists Unravel the Reproduction Process of Multiple Genome PlantsJanuary 16, 2013
Researchers are now starting to have an idea on some plants' ability to duplicate their entire genomes while continuing to reproduce. Most plants, including crops, at some point in history have duplicated their genomes, giving them two or more copies of each of the instructions to build the plant. These plants have few problems reproducing normally.
In a collaborative research by Harvard and Purdue universities, scientists found a species that does reproduce as both a diploid and tetraploid - Arabidopsis arenosa, a cousin of the standard research plant Arabidopsis thaliana. By comparing the DNA sequences of the whole genomes of plants, they detected the genetic differences between the tetraploid and diploid versions of the species.
Many genes known to play a role in meiosis, or cell division, were different in the tetraploids as compared to the diploids. In particular, the gene Asynaptic1, which controls the organization of chromosome pairs during reproduction, was mutated in tetraploids.Of the plants tested, 95 percent of the tetraploids shared the same mutation in Asynaptic1, while 95 percent of the diploids did not contain this variant. This suggests that the mutation in Asynaptic1 is involved in the adaptation of the meiotic machinery needed to work with four copies of the genome.
View the news release of Purdue University at http://www.purdue.edu/newsroom/releases/2013/Q1/scientists-learning-how-multiple-genome-plants-reproduce.html.
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in 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
- Public-Private Partnership to Advance Science and Policy for Global Food and Nutrition Security
- Diamondback Moth Genome Gives New Clues for Sustainable Pest Management
- ABNE Director Cites the Role of Biotechnology to Improve African Farmers' Lives
- A Hungry Nation is an Angry Nation
- Nigeria Releases Improved Cassava Varieties to Boost Productivity
- Agriculture Summit for Africa
- Researchers Reveal Plants' Defense Mechanism Against Insect Attack
- Perennial Biofuel Crops Lessen Nitrogen Emmision, Study Reveals
- Scientists Unravel the Reproduction Process of Multiple Genome Plants
- Researchers Power Up Tomato with Multiple Traits Through A Single Gene
- Pawar: India Shouldn't Stop Biotech Crop Field Trials
- TAAS Foundation Day Lecture Focuses on Ensuring Food Security
- PPI Commits to Share Technology with Mahyco
- EFSA Makes Public All Data on Biotech Corn NK603
- Field Trials Confirm Potential of GM Potatoes for Sustainable Farming in Belgium
- Fighting Insect Pests with Genetic Targeting
- Delayed Flowering Increases Crop's Growth for up to 50%, Research Finds
- Scientists Track Genetic Detail of a Microbe in Biogas Plants
- Giant Tobacco Plants that Stay Young Forever
- Grain and Forage Composition of Stacked Trait Corn Equivalent with Conventional Corn
- Biotech α-Amylase Inhibitor Peas are Not Allergenic in Mice
Beyond Crop Biotech
- Sexual Cycle in Fungi to Increase Penicillin Production
- ARK-Genomics Receives Grant for Livestock Genomic Studies
- InterDrought-IV Conference
- National Symposium on Biotechnological Approaches for Plant Protection
- Plant Genomics Congress
- FAO Summary Document on GMOs in the Pipeline
Read the latest:
- Biotech Updates (February 21, 2024)
- Gene Editing Supplement (February 14, 2024)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: