News
The weed that helps to feed the world
Scientists say that the detailed sequencing of the genome for a grass species considered a weed in some countries, could help to improve food security for the world鈥檚 expanding population.
Understanding the complex genetic features of (Aegilops tauschii) could help develop new wheat varieties that adapt to stressors like climate extremes and disease, they say in a comment article for published today (January 30, 2018).The common bread wheat species we are familiar with today arose when emmer wheat cross-bred with goat grass around 8,000 years ago. Genes from goat grass contributed to bread wheat鈥檚 tolerance of cold and diseases, which is why both species are able to grow in so many parts of the world.
晚夜福利网站鈥檚 Professor , who is one of the co-authors on the Nature article, said the genome sequence, published in November 2017, highlights the distinctive features of goat grass, known as 鈥溾.
The further study of these complicated elements, which are so-called because they can change their position in the genome, could help bread wheat further adapt to stressors like climate extremes and disease, said Professor Appels and his co-authors.
鈥淎s our population rapidly expands, and our climate grows more extreme, it is very important we are able to produce wheat varieties which can survive and thrive,鈥 he said.
鈥淭he availability of the genome sequence for goat grass provides further opportunity to explore and understand the properties which can help wheat improvement.
鈥淕oat grass is highly adaptable and tolerant of diseases thanks to its genes. The genome sequence provides the basis for researchers to pinpoint them.
鈥淭wo new genes that can be utilised for resistance to the have already been discovered as a result of the genome being sequenced.
鈥淭he sequence could even help researchers find genes that can improve wheat baking quality.鈥
Wheat is the world鈥檚 most widely grown crop cereal thanks to its adaptability to a number of climates. It is the staple food for more than a third of the world鈥檚 human population and accounts for 20 per cent of all calories consumed globally.
However, it has some of the largest and most complex genomes compared to other crop plants, making sequencing difficult.
Professor Appels played a key role in the international project, which published the draft sequence of the wheat genome in 2014. A high quality wheat genome sequence is planned for release later this year.
Professor Appels said gene editing using technologies such as could result in further benefits. The technique means scientists can precisely manipulate specific sequences within the genomes of plants to produce more desired traits.
Professor Appels is currently working closely with in Victoria to ensure the project team work towards completing a high quality, ordered sequence of the wheat genome.
The genome sequence of goat grass was generated by an international team led by the after two decades of research.
To read the Nature article, click .