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Cited by 438

The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.

Copy Number Variation Affecting the Photoperiod-B1 and Vernalization-A1 Genes Is Associated with Altered Flowering Time in Wheat (Triticum aestivum)

Open access
Díaz, Aurora, Zikhali, Meluleki, Turner, Adrian S., Isaac, Peter, Laurie, David A.·2012·PLoS ONE

Abstract

The timing of flowering during the year is an important adaptive character affecting reproductive success in plants and is critical to crop yield. Flowering time has been extensively manipulated in crops such as wheat (Triticum aestivum L.) during domestication, and this enables them to grow productively in a wide range of environments. Several major genes controlling flowering time have been identified in wheat with mutant alleles having sequence changes such as insertions, deletions or point mutations. We investigated genetic variants in commercial varieties of wheat that regulate flowering by altering photoperiod response (Ppd-B1 alleles) or vernalization requirement (Vrn-A1 alleles) and for which no candidate mutation was found within the gene sequence. Genetic and genomic approaches showed that in both cases alleles conferring altered flowering time had an increased copy number of the gene and altered gene expression. Alleles with an increased copy number of Ppd-B1 confer an early flowering day neutral phenotype and have arisen independently at least twice. Plants with an increased copy number of Vrn-A1 have an increased requirement for vernalization so that longer periods of cold are required to potentiate flowering. The results suggest that copy number variation (CNV) plays a significant role in wheat adaptation.

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Metadata

Authors
Díaz, A., Zikhali, M., Turner, A. S., Isaac, P., & Laurie, D. A.
Venue
PLoS ONE
Published
2012-03-22
Volume
7
Issue
3
Pages
e33234
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2051147812
Cited by
438
References
30
FWCI
29.21
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Copy Number Variation Affecting the Photoperiod-B1 and Vernalization-A1 Genes Is Associated with Altered Flowering Time in Wheat (Triticum aestivum). https://app.cochat.ai/papers/10.1371/journal.pone.0033234
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Díaz, A., Zikhali, M., Turner, A. S., Isaac, P., & Laurie, D. A. (2012). Copy Number Variation Affecting the Photoperiod-B1 and Vernalization-A1 Genes Is Associated with Altered Flowering Time in Wheat (Triticum aestivum). PLoS ONE. https://doi.org/10.1371/journal.pone.0033234

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