Dataset Information

Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.

ABSTRACT: The northwards expansion of barley production requires adaptation to longer days, lower temperatures and stronger winds during the growing season. We have screened 169 lines of the current barley breeding gene pool in the Nordic region with regards to heading, maturity, height, and lodging under different environmental conditions in nineteen field trials over 3 years at eight locations in northern and central Europe. Through a genome-wide association scan we have linked phenotypic differences observed in multi-environment field trials (MET) to single nucleotide polymorphisms (SNP). We have identified an allele combination, only occurring among a few Icelandic lines, that affects heat sum to maturity and requires 214 growing degree days (GDD) less heat sum to maturity than the most common allele combination in the Nordic spring barley gene pool. This allele combination is beneficial in a cold environment, where autumn frost can destroy a late maturing harvest. Despite decades of intense breeding efforts relying heavily on the same germplasm, our results show that there still exists considerable variation within the current breeding gene pool and we identify ideal allele combinations for regional adaptation, which can facilitate the expansion of cereal cultivation even further northwards.

SUBMITTER: Goransson M

PROVIDER: S-EPMC6510284 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.

Göransson Magnus M Hallsson Jón Hallsteinn JH Lillemo Morten M Orabi Jihad J Backes Gunter G Jahoor Ahmed A Hermannsson Jónatan J Christerson Therese T Tuvesson Stine S Gertsson Bo B Reitan Lars L Alsheikh Muath M Aikasalo Reino R Isolahti Mika M Veteläinen Merja M Jalli Marja M Krusell Lene L Hjortshøj Rasmus L RL Eriksen Birger B Bengtsson Therése T

Frontiers in plant science 20190503

The northwards expansion of barley production requires adaptation to longer days, lower temperatures and stronger winds during the growing season. We have screened 169 lines of the current barley breeding gene pool in the Nordic region with regards to heading, maturity, height, and lodging under different environmental conditions in nineteen field trials over 3 years at eight locations in northern and central Europe. Through a genome-wide association scan we have linked phenotypic differences ob ...[more]

PMID: 31130971

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Dataset Information

Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.

Publications

Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.

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