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Domestication in dry-cured meat Penicillium fungi : convergent specific phenotypes and horizontal gene transfers without strong genetic subdivision
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- Lo, Ying-Chu (författare)
- IDEEV – Laboratoire Ecologie, Systématique et Evolution, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
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- Bruxaux, Jade (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,IDEEV – Laboratoire Ecologie, Systématique et Evolution, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
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- Rodríguez de la Vega, Ricardo C. (författare)
- IDEEV – Laboratoire Ecologie, Systématique et Evolution, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
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- John Wiley & Sons, 2023
- 2023
- Engelska.
- Ingår i: Evolutionary Applications. - : John Wiley & Sons. - 1752-4571. ; 16:9, s. 1637-1660
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Some fungi have been domesticated for food production, with genetic differentiation between populations from food and wild environments, and food populations often acquiring beneficial traits through horizontal gene transfers (HGTs). Studying their adaptation to human-made substrates is of fundamental and applied importance for understanding adaptation processes and for further strain improvement. We studied here the population structures and phenotypes of two distantly related Penicillium species used for dry-cured meat production, P. nalgiovense, the most common species in the dry-cured meat food industry, and P. salamii, used locally by farms. Both species displayed low genetic diversity, lacking differentiation between strains isolated from dry-cured meat and those from other environments. Nevertheless, the strains collected from dry-cured meat within each species displayed slower proteolysis and lipolysis than their wild conspecifics, and those of P. nalgiovense were whiter. Phenotypically, the non-dry-cured meat strains were more similar to their sister species than to their conspecific dry-cured meat strains, indicating an evolution of specific phenotypes in dry-cured meat strains. A comparison of available Penicillium genomes from various environments revealed HGTs, particularly between P. nalgiovense and P. salamii (representing almost 1.5 Mb of cumulative length). HGTs additionally involved P. biforme, also found in dry-cured meat products. We further detected positive selection based on amino acid changes. Our findings suggest that selection by humans has shaped the P. salamii and P. nalgiovense populations used for dry-cured meat production, which constitutes domestication. Several genetic and phenotypic changes were similar in P. salamii, P. nalgiovense and P. biforme, indicating convergent adaptation to the same human-made environment. Our findings have implications for fundamental knowledge on adaptation and for the food industry: the discovery of different phenotypes and of two mating types paves the way for strain improvement by conventional breeding, to elucidate the genomic bases of beneficial phenotypes and to generate diversity.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
Nyckelord
- convergence
- domestication
- fungi
- parallel adaptation
- sausage
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