{"id":1764,"date":"2018-11-06T17:20:18","date_gmt":"2018-11-06T09:20:18","guid":{"rendered":"https:\/\/www.agrinoon.com\/agriculture\/?p=1764"},"modified":"2018-11-06T17:20:18","modified_gmt":"2018-11-06T09:20:18","slug":"small-genetic-differences-turn-plants-better-teams","status":"publish","type":"post","link":"https:\/\/www.agrinoon.com\/agriculture\/2018\/11\/06\/small-genetic-differences-turn-plants-better-teams\/","title":{"rendered":"Small genetic differences turn plants into better teams"},"content":{"rendered":"

Diverse communities of plants and animals typically perform better than monocultures. However, the mechanisms that are responsible for this have so far been a mystery to science. Biologists at the University of Zurich have now been able to identify the genetic cause of these effects. Their findings might help to improve crop yield.<\/p>\n

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Small genetic differences improve teamwork: Systematic crossing of wallcress varieties in a UZH greenhouse. (Image: UZH)
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The ongoing worldwide loss of biological diversity is one of the most pressing challenges humankind currently faces. Biodiversity is vital to humans not least because it supports ecosystem services such as the provision of clean water and the production of biomass and food. Many experiments have shown that diverse communities of organisms function better in this regard than monocultures. \u201cIn mixed communities plants engage in a kind of division of labor that increases efficiency and improves the functioning of the community as a whole,\u201d explains Pascal Niklaus from the Department of Evolutionary Biology and Environmental Studies of the University of Zurich.<\/p>\n

Nevertheless, modern agricultural practice mainly relies on plant varieties that are genetically uniform, since they make it easier to grow and process crops. The benefits of diverse communities therefore remain untapped, also because the underlying mechanisms are not yet fully understood. \u201cDespite intensive research, we currently don\u2019t know which properties make plants good players in such mixed teams,\u201d says Samuel W\u00fcst, main author of the study.<\/p>\n

Plants grow better in mixed teams<\/strong><\/h4>\n

The two researchers addressed this question by combining modern genetic and ecological approaches. As a test system, they focused on common wallcress (Arabidopsis thaliana<\/em>), a small crucifer that is genetically well documented. They used systematic crosses of varieties of these plants, which were grown in pots in different combinations. After a few weeks, the researchers weighed the resulting biomass, which allowed them to compare the growth of the plants. As expected, pots with mixtures of different crosses were indeed more productive on average.<\/p>\n

Small genetic differences improve yield
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Using statistical analyses, the researchers then related the yield gain in mixed communities to the genetic makeup of the crosses. The genetic map they obtained in this way enabled them to identify the parts of the genome that made the combination of plants good mixed teams. They found that even the smallest genetic differences between plants were enough to increase their combined yield.<\/p>\n

\u201cWe were very surprised that complex and poorly understood properties such as the suitability to form a well-performing mixture had such a simple genetic cause,\u201d says Samuel W\u00fcst. He thinks that their method may help to breed plants that are good team players and thus yield more crops. \u201cOur insights open up completely new avenues in agriculture,\u201d adds W\u00fcst.<\/p>\n

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Source<\/strong>:\u00a0University of Zurich<\/a><\/span><\/div>\n<\/div>\n
<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Diverse communities of plants and animals typically perform better than monocultures. However, the mechanisms that are responsible for this have so far been a mystery to science. Biologists at the University of Zurich have now been able to identify the genetic cause of these effects. Their findings might help to improve crop yield. Small genetic… Continue reading Small genetic differences turn plants into better teams<\/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-1764","post","type-post","status-publish","format-standard","hentry","category-industry-news","entry"],"yoast_head":"\nSmall genetic differences turn plants into better teams - 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\/11\/06\/small-genetic-differences-turn-plants-better-teams\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Small genetic differences turn plants into better teams - agrinoon\" \/>\n<meta property=\"og:description\" content=\"Diverse communities of plants and animals typically perform better than monocultures. 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