Prosiectau fesul blwyddyn
Crynodeb
Red clover (Trifolium pratense L.) is an outcrossing forage legume that has adapted to a wide range of climatic and growing conditions across Europe. Red clover is valued for its high yield potential and its forage quality. The high amount of genetic diversity present in red clover provides an invaluable, but often poorly characterized resource to improve key traits such as yield, quality, and resistance to biotic and abiotic stresses. In this study, we examined the genetic and phenotypic diversity within a diverse set of 395 diploid red clover accessions via genome wide allele frequency fingerprinting and multi-location field trials across Europe. We found that the genetic structure of accessions mostly reflected their geographic origin and only few cases were detected, where breeders integrated foreign genetic resources into their local breeding pools. The mean dry matter yield of the first main harvesting season ranged from 0.74 kg m-2 in Serbia and Norway to 1.34 kg m-2 in Switzerland. Phenotypic performance of accessions in the multi-location field trials revealed a very strong accession x location interaction. Local adaptation was especially prominent in Nordic red clover accessions that showed a distinct adaptation to the growing conditions and cutting regime of the North. The traits vigor, dry matter yield and plant density were negatively correlated between the trial location in Norway and the locations Great Britain, Switzerland, Czech Republic and Serbia. Notably, breeding material and cultivars generally performed well at the location where they were developed. Our results confirmed that red clover cultivars were bred from regional ecotypes and show a narrow adaptation to regional conditions. Our study can serve as a valuable basis for identifying interesting materials that express the desired characteristics and contribute to the adaptation of red clover to future climatic conditions.
Iaith wreiddiol | Saesneg |
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Rhif yr erthygl | 1128823 |
Nifer y tudalennau | 17 |
Cyfnodolyn | Frontiers in Plant Science |
Cyfrol | 14 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 01 Maw 2023 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Multi-location trials and population-based genotyping reveal high diversity and adaptation to breeding environments in a large collection of red clover'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.-
IBERS- IAE- ISPG- CCG- IDG- SVCG- BBSRC Core Funding 23/34
Farrar, K. (Prif Ymchwilydd)
Biotechnology and Biological Sciences Research Council
01 Ebr 2023 → 31 Maw 2028
Prosiect: Ymchwil a ariannwyd yn allanol
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Breeding forage and grain legumes to increase EU and China protein self-sufficiency EUCLEG
Skot, L. (Prif Ymchwilydd)
Horizon 2020 -European Commission
01 Medi 2017 → 31 Rhag 2021
Prosiect: Ymchwil a ariannwyd yn allanol