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The Winter-Type Allele of HvCEN Is Associated With Earliness Without Severe Yield Penalty in Icelandic Spring Barley (Hordeum vulgare L.)

Goransson, Magnus and Sigurdardottir, Thorbjörg Helga and Lillemo, Morten and Bengtsson, Therese and Hallsteinn Hallsson, Jón (2021). The Winter-Type Allele of HvCEN Is Associated With Earliness Without Severe Yield Penalty in Icelandic Spring Barley (Hordeum vulgare L.). Frontiers in Plant Science. 12 , 720238
[Research article]

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Abstract

Icelandic barley genotypes have shown extreme earliness both in flowering and maturity compared to other north European genotypes, whereas earliness is a key trait in adapting barley to northern latitudes. Four genes were partially re-sequenced, which are Ppd-H1, HvCEN, HvELF3, and HvFT1, to better understand the mechanisms underlying this observed earliness. These genes are all known to play a part in the photoperiod response. The objective of this study is to correlate allelic diversity with flowering time and yield data from Icelandic field trials. The resequencing identified two to three alleles at each locus which resulted in 12 haplotype combinations. One haplotype combination containing the winter-type allele of Ppd-H1 correlated with extreme earliness, however, with a severe yield penalty. A winter-type allele in HvCEN in four genotypes correlated with earliness combined with high yield. Our results open the possibility of marker-assisted pyramiding as a rapid way to develop varieties with a shortened time from sowing to flowering under the extreme Icelandic growing conditions and possibly in other arctic or sub-arctic regions.

Authors/Creators:Goransson, Magnus and Sigurdardottir, Thorbjörg Helga and Lillemo, Morten and Bengtsson, Therese and Hallsteinn Hallsson, Jón
Title:The Winter-Type Allele of HvCEN Is Associated With Earliness Without Severe Yield Penalty in Icelandic Spring Barley (Hordeum vulgare L.)
Series Name/Journal:Frontiers in Plant Science
Year of publishing :2021
Volume:12
Article number:720238
Number of Pages:12
Publisher:FRONTIERS MEDIA SA
ISSN:1664-462X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:barley, flowering time, yield, adaptation, HvCEN, Ppd-H1, HvFT1, HvELF3
URN:NBN:urn:nbn:se:slu:epsilon-p-114072
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114072
Additional ID:
Type of IDID
DOI10.3389/fpls.2021.720238
Web of Science (WoS)000704878700001
ID Code:25966
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:27 Oct 2021 13:26
Metadata Last Modified:27 Oct 2021 13:31

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