{"id":1233,"date":"2018-03-05T17:08:53","date_gmt":"2018-03-05T09:08:53","guid":{"rendered":"https:\/\/www.agrinoon.com\/agriculture\/?p=1233"},"modified":"2018-03-05T17:08:53","modified_gmt":"2018-03-05T09:08:53","slug":"gene-injection-set-bring-big-benefits-pea-crops","status":"publish","type":"post","link":"https:\/\/www.agrinoon.com\/agriculture\/2018\/03\/05\/gene-injection-set-bring-big-benefits-pea-crops\/","title":{"rendered":"Gene injection set to bring big benefits to pea crops"},"content":{"rendered":"

Keywords: pea<\/p>\n

Scientists are injecting genes into pea plants to speed up introducing better disease resistance and improving the nutrition of this pulse crop within the next five years.<\/b><\/strong><\/p>\n

Adding valuable genes from wild pea varieties from Africa and Asia is set to bring improved resistance to the potentially devastating disease downy mildew, with fungicide control being limited to seed treatments.<\/p>\n

Researchers are also well down the path of improving the nutrition of combine peas both for human consumption and for animal feed to potentially reduce expensive imports of soya.<\/p>\n

Claire Domoney at the John Innes Centre says speedier breeding techniques mean these new beneficial traits can now be introduced more quickly into farm crops.<\/p>\n

\u201cBy injecting genes into pea leaves we can get a quick response on what reaction the genes have on the pea crop,\u201d she tells Farmers Weekly.<\/p>\n

Downy mildew is one of the most yield-damaging diseases of the combine pea crop, and major fungicide control only comes from seed treatments, such as Wakil.<\/p>\n

<\/p>\n

Downy mildew in peas. \u00a9 Blackthorn Arable<\/i><\/em><\/p>\n

Peas from Ethiopia<\/b><\/strong><\/h4>\n

Now, Prof Domoney and her team have identified one gene giving good downy mildew resistance from a wild pea variety found in Ethiopia, and have introduced it into breeding material at the Norwich-based research station.<\/p>\n

The gene can be injected into pea leaves to see the immediate reaction in a pea plant infected by downy mildew, says Prof Domoney, who is head of the metabolic biology department at the research institute.<\/p>\n

Now, a second gene from an Afghanistan wild pea variety is being investigated, which grows to more than 2m tall in the institute\u2019s glasshouses, and this new gene is hoped to be introduced into breeding material.<\/p>\n

\u201cWe are now looking for a third disease-resistance gene and then it will be reliable enough to release to the plant breeders,\u201d she says.<\/p>\n

Downy mildew disease produces resting spores, which persist in the soil and can cause infections in young pea plants, which can kill plants before flowering.<\/p>\n

<\/p>\n

Prof Claire Domoney with a pea variety from Afghanistan<\/i><\/em><\/p>\n

Seed treatments<\/b><\/strong><\/h4>\n

Fungicide seed treatment combined with varietal resistance is seen as the best way to avoid serious losses, as there are no foliar fungicides which give effective control.<\/p>\n

Most combine pea varieties on the Processors and Growers Research Organisation (PGRO) Recommended List have disease resistance scores in a narrow range of 5 to 7 \u2013 with only the new variety Blueman outside this range with a score of 9 \u2013 where 1 is very susceptible and 9 is good resistance.<\/p>\n

Varieties such as Gregor, Stallion, Crackerjack and Greenwood, as well as the marrowfats Aikido, Sakura and Genki area all scored 5.<\/p>\n

This method of gene injection is also helping researchers at the centre push for variety improvements quicker than with conventional breeding techniques, with the seed-to-seed production cycle down to just 37 days.<\/p>\n

\u201cOnce we know which genes we need and follow up by introduce them into pea crops they could be with growers in five years,\u201d says Prof Domoney.<\/p>\n

Peas vs beans<\/b><\/strong><\/h4>\n

Researchers are focusing their breeding on peas rather than beans at the institute as the former has a greater genetic pool to look for traits, and the pea offers better potential for improving nutrition in humans and for livestock.<\/p>\n

Gluten-free pea flour has benefits for those people with coeliac disease, caused by an adverse reaction to gluten \u2013 a dietary protein found in wheat, barley and rye \u2013 and one in 100 of the UK population suffer from this disease.<\/p>\n

Therefore, researchers are looking at how pea protein can be improved to give the crop a wider use, especially when cooking or baking with pea flour.<\/p>\n

They are also looking at improving pea starch \u2013 which is composed of long chains of glucose molecules \u2013 to give slower release into the human digestion system, and this could potentially help sufferers of type 2 diabetes.<\/p>\n

`Replacing soya<\/b><\/strong><\/h4>\n

On the livestock feeding side, work is underway looking at making peas more useful in animal feeds to help this protein crop replace imported soya.<\/p>\n

This work is aimed at removing protein inhibiting digestants for poultry and monogastric animals, and so make the crop more useful in animal diets and replace genetically modified imported soya.<\/p>\n

The gene injection technique is also being use to try to guarantee good colour in peas for human consumption, such as in marrowfats, as poor colour can reduce the price by \u00a350\/t or more.<\/p>\n

\u201cThis could be a quick method to retain the colour in peas, and colour is extremely important to the pea processors,\u201d adds Prof Domoney.<\/p>\n

Source<\/b><\/strong>:\u00a0Farmers Weekly<\/u><\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Keywords: pea Scientists are injecting genes into pea plants to speed up introducing better disease resistance and improving the nutrition of this pulse crop within the next five years. Adding valuable genes from wild pea varieties from Africa and Asia is set to bring improved resistance to the potentially devastating disease downy mildew, with fungicide… Continue reading Gene injection set to bring big benefits to pea crops<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-1233","post","type-post","status-publish","format-standard","hentry","category-industry-news","entry"],"yoast_head":"\nGene injection set to bring big benefits to pea crops - agrinoon<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agrinoon.com\/agriculture\/2018\/03\/05\/gene-injection-set-bring-big-benefits-pea-crops\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gene injection set to bring big benefits to pea crops - agrinoon\" \/>\n<meta property=\"og:description\" content=\"Keywords: pea Scientists are injecting genes into pea plants to speed up introducing better disease resistance and improving the nutrition of this pulse crop within the next five years. 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