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| 2. |
- Lehrman, Anna, et al.
(författare)
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Framtidens mat - om husdjursavel och växtförädling
- 2014
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Du har kanske inte funderat över varför tomater ser ut som de gör, varför våra husdjur är så lugna och vänliga, eller hur det är möjligt att köpa en vattenmelon utan kärnor. Trots att växtförädling och djuravel har format det mesta vi äter, är det få människor som är medvetna om vilka vetenskapliga upptäckter och vilket omfattande arbete som ligger bakom maten vi lägger på våra tallrikar. Med den här boken vill vi ge en översikt över domesticeringens och förädlingens bakgrund, från jordbrukets början för mer än 10 000 år sedan till dagens molekylära arbete. Vi beskriver grunderna för genernas strukturer och funktioner, varför och hur olika avels- och förädlingsmetoder används och ger en inblick i lagstiftningen kring användning av genteknik i Sverige och EU. Vi ger också en överblick över olika produkter som tagits fram genom genetisk modifiering (GM) och en sammanfattning av de ekonomiska konsekvenserna av GM-grödor. Vidare diskuterar vi etiska frågor som rör avel och förädling i allmänhet och genetisk modifiering i synnerhet.
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| 3. |
- Lehrman, Anna, et al.
(författare)
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Framtidens mat: om husdjursavel och växtförädling
- 2020
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Bok (populärvet., debatt m.m.)abstract
- Domesticeringen av växter och djur är en lång och ständigt pågående process som har format, inte bara de domesticerade arterna och landskapet, utan även människorna. Till exempel har utvecklingen av vårt immunförsvar påverkats mycket av den nära kontakt som funnits mellan människor och tamdjur. Förändringarna hos de domesticerade djuren har varit dramatiska, från den vilda djungelhönan som får två kullar med totalt 20 kycklingar per år, till dagens värphönor som producerar mer än 300 ägg per år. Och på hundra år har den genomsnittliga veteskörden ökat från 2 till 6 ton per hektar i många europeiska länder. Även om en del av denna ökning beror på odlingsmetoder, gödning och bekämpningsmedel, har den genetiska förändringen en stor del i framstegen. Genom ökad kunskap om evolution, förståelse för ärftlighet och upptäckten av kromosomer och gener har vi gått från ett omedvetet urval till avancerade förädlings- och avelsprogram. Vår ständigt ökande kunskap om mekanismerna som styr olika egenskaper kan användas för att skräddarsy vår mat. Tack vare dessa förädlingsoch avelsprogram har vi nu tillgång till friskare djur och grödor och producerar mjölk, kött och spannmål i nivåer som våra förfäder bara kunde drömma om. Med den här boken vill vi ge en översikt över de metoder och tekniker som används i arbetet med att utveckla husdjur och växter. Vi beskriver också lagstiftningen och diskuterar etiska aspekter kring användningen av genteknik i växtförädling och djuravel. Denna bok är publicerad inom forskningsprogrammet Mistra Biotech vilket finansieras av Stiftelsen för miljöstrategisk forskning (Mistra) och Sveriges lantbruksuniversitet (SLU). Denna andra utgåva är en förkortad version av utgåvan som publicerades 2014. Ett stort tack till Inger Åhman och Marie Nyman för synpunkter under arbetets gång och Karin Eriksson för ovärderlig hjälp med textbearbetningen.
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| 4. |
- Lehrman, Anna, et al.
(författare)
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Shaping our food: an overview of crop and livestock breeding
- 2020
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Bok (populärvet., debatt m.m.)abstract
- The domestication of plants and animals is a long and on-going process that has shaped not only the domesticated species and the landscape, but also the humans who have domesticated them. For example, the evolution of our immune system has been strongly influenced by the close contact between humans and domestic animals. The changes in domesticated species have been dramatic, from the wild red junglefowl hen raising two clutches of 10 chicks per year, to today’s laying hen producing more than 300 eggs per year. In one hundred years the average wheat yield has increased from two tonnes per hectare to six tonnes per hectare in many European countries. Although part of this increase is due to management techniques, fertilizers, and pesticides, the genetic component of such progress has been substantial.With an increased knowledge of evolution, the understanding of heredity, and the discovery of chromosomes and genes, we have gone from unintentional selection to advanced breeding programmes. Our ever-increasing knowledge of the mechanisms behind different traits can be used to customize the sources of our food. Thanks to these breeding programmes, we now have access to healthier livestock and crops, and are producing milk, meat, and grain at levels our ancestors could only have dreamed of. With this book we wish to provide an overview of the methods and techniques used in the domestication and development of new agricultural crop varieties and breeds of livestock. We also describe the legislation and discusses different ethical views on the use of biotechnology in crop and animal breeding.This book is published within the Mistra Biotech research programme, financed by the Swedish Foundation for Strategic Environmental Research (Mistra) and the Swedish University of Agricultural Sciences (SLU). This second edition is a shortened version of the previous edition. We are grateful to Inger Åhman and Marie Nyman for helpful comments on the manuscript.
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| 5. |
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| 6. |
- Björkman, Christer, et al.
(författare)
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Food Conditioning Affects Expression of Insect Resistance in Diploid Willows (Salix spp.)
- 2013
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Ingår i: American Journal of Plant Sciences. - : Scientific Research Publishing, Inc.. - 2158-2742 .- 2158-2750. ; 4, s. 48-52
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Tidskriftsartikel (refereegranskat)abstract
- The high energy quota and versatility of use make willows (Salix spp.) attractive as bioenergy crops. Insect defoliation constitutes a threat to the profitability of willow growers. Hitherto, the breeding for resistance against the main insect pests has been hampered by the fact that all known resistant willow clones are polyploids, and existing molecular breeding tools work most effectively for diploids. Here, we firstly report diploid willows highly resistant to the main insect defoliator, the leaf beetle (Phratora vulgatissima), offering new opportunities for breeding resistance. Leaf bee-tles exposed to three resistant clones (two S. purpurea one S. eriocephala) laid three to 27 times fewer eggs than fe-males on a susceptible S. viminalis clone. Secondly, we show that beetles laid significantly more eggs on resistant clones if they were fed the susceptible clone prior to the oviposition monitoring test compared to when they pre-fed on resistant clones. Nevertheless, the differences observed between resistant and susceptible clones were pronounced in all cases. The food conditioning effect means that small differences in resistance among clones may be undetected.
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| 7. |
- Bubolz, Jéssica, et al.
(författare)
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Genetically modified (GM) late blight-resistant potato and consumer attitudes before and after a field visit
- 2022
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Ingår i: GM Crops and Food Biotechnology in Agriculture and the Food Chain. - : Informa UK Limited. - 2164-5698 .- 2164-5701. ; 13, s. 290-298
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Tidskriftsartikel (refereegranskat)abstract
- Late blight, caused by Phytophthora infestans, is the most devastating disease in potato production. Here, we show full late blight resistance in a location with a genetically diverse pathogen population with the use of GM potato stacked with three resistance (R) genes over three seasons. In addition, using this field trials, we demonstrate that in-the-field intervention among consumers led to change for more favorable attitude generally toward GM crops.
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| 8. |
- Dida, Mulatu Geleta, et al.
(författare)
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Domestication of Lepidium campestre as part of Mistra Biotech, a research programme focused on agro biotechnology for sustainable food
- 2014
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Ingår i: Perennial Crops for Food Security Proceedings of the FAO Expert Workshop. - 9789251079980 - 9789251079997 ; , s. 141-147
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Bokkapitel (refereegranskat)abstract
- Several important challenges are facing agriculture . In the stride towards lowering the negative environmental impact of food production while maint aining and increasing the production, both basic farming practices and novel technologies are important tools. The use of biotechnology in breeding, however, is not uncontroversial. The crit icism has many angles and often relates to the applications brought forward by large, multinationa l companies, and farmers growing dependence on these companies when it comes to seeds. Question s are being raised about ethical acceptability, and about the health and environmental impacts. A g eneral aversion to what is often referred to as the “industrialization” of agriculture, and t o “unnaturalness”, also emerges in the debate. In the research programme referred to as Mistra Biotech , we include both philosophy and natural and social sciences. The overall goal is to facilitate production systems that are sustainable from ecological, social and economic perspectives. The objectives of the programme include developing: * new elite plant lines that have benefits for consumers, farmers, the food industry and the environment; * agribiotechnology tools that are important for achieving new product qualities, healthier crops and livestock, and for solving environmental problems in agriculture; * basis for sustainable production systems that contribute to increased competitiveness in Swedish agriculture and food production; * tools for ethical scrutiny of agricultural biotechnology that combine high demands on safety with encouragement of innovations; * basis for improved regulatory approaches and private-public relationships. The programme includes six component projects, in which domestication of a new biennial oilseed crop Lepidium campestre (field cress) is a major research focus. Questions we will try to answer within this programme include: Can biotechnology be used to improve crops which mitigate climate change or benefit the environment? What potential is there to commercialize such a crop? How would the consumers react to products made from it? Can breeding technology be improved further? Why does the market for genetically improved plant and animal materials look the way it does? What ethical concerns does the use of biotechnology raise? And how do all these issues feed into future agricultural systems? The results are integrated in the synthesis project called the Centre for Agriculture and Food Systems Analysis and Synthesis (AgriSA). Here we emphasise the research within Component Project1, with a focus on the domestication of field cress.
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| 9. |
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| 10. |
- Hansson, Sven Ove, et al.
(författare)
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Breeding for public health : A strategy
- 2018
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Ingår i: Trends in Food Science & Technology. - : Elsevier. - 0924-2244 .- 1879-3053. ; 80, s. 131-140
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Forskningsöversikt (refereegranskat)abstract
- Background Plant and animal breeding can contribute to promote human health by providing new and healthier food products that farmers can produce in an economically viable way and consumers will choose to buy and eat. However, this can only be achieved if breeding makes full use of knowledge about nutrition, consumer behaviour, farming and agricultural economics, A strategy is needed for breeding for public health. Scope and Approach: A multidisciplinary group of researchers has developed a strategy for plant and animal breeding for public health. The group includes experts in plant breeding, animal breeding, food science, nutrition science, clinical nutrition, agricultural economics, consumer research, and ethics. Key Findings and Conclusions: An outline is proposed of a strategy for breeding for public health. It aims at improving public health in both low- and high-income countries. To prevent chronic disease, the highest priority should be to develop healthy variants of traditional food items that can be introduced universally, i.e. completely replace the older, less healthy variants. In particular in low-income countries, food products with enhanced micronutrient content are urgently needed. In all countries, crops with improved fatty acid composition can contribute substantially to improved public health. A reasonable second priority is products that may not be suitable for universal introduction but will expectedly be demanded by large groups of consumers. One example could be diminishing the energy density of traditional foodstuffs by reducing their fat, sugar, and starch content and increasing their dietary fibre content, Changes in the current organization of the market for farm products are needed to encourage the production of healthier foodstuffs.
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