10.3389/fpls.2019.00542.s006
Magnus Göransson
Magnus
Göransson
Jón Hallsteinn Hallsson
Jón Hallsteinn
Hallsson
Morten Lillemo
Morten
Lillemo
Jihad Orabi
Jihad
Orabi
Gunter Backes
Gunter
Backes
Ahmed Jahoor
Ahmed
Jahoor
Jónatan Hermannsson
Jónatan
Hermannsson
Therese Christerson
Therese
Christerson
Stine Tuvesson
Stine
Tuvesson
Bo Gertsson
Bo
Gertsson
Lars Reitan
Lars
Reitan
Muath Alsheikh
Muath
Alsheikh
Reino Aikasalo
Reino
Aikasalo
Mika Isolahti
Mika
Isolahti
Merja Veteläinen
Merja
Veteläinen
Marja Jalli
Marja
Jalli
Lene Krusell
Lene
Krusell
Rasmus L. Hjortshøj
Rasmus L.
Hjortshøj
Birger Eriksen
Birger
Eriksen
Therése Bengtsson
Therése
Bengtsson
Table_3_Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.xlsx
Frontiers
2019
earliness
GWAS
Hordeum vulgare
maturity
plant breeding
plant height
QTL
2019-05-03 15:08:46
Dataset
https://frontiersin.figshare.com/articles/dataset/Table_3_Identification_of_Ideal_Allele_Combinations_for_the_Adaptation_of_Spring_Barley_to_Northern_Latitudes_xlsx/8076299
<p>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.</p>