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240426s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19777
|2 doi
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|a pubmed24n1536.xml
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|a eng
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|a Fusi, Riccardo
|e verfasserin
|4 aut
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|a The auxin efflux carrier PIN1a regulates vascular patterning in cereal roots
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 16.09.2024
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|a Date Revised 16.09.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.
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|a Barley (Hordeum vulgare) is an important global cereal crop and a model in genetic studies. Despite advances in characterising barley genomic resources, few mutant studies have identified genes controlling root architecture and anatomy, which plays a critical role in capturing soil resources. Our phenotypic screening of a TILLING mutant collection identified line TM5992 exhibiting a short-root phenotype compared with wild-type (WT) Morex background. Outcrossing TM5992 with barley variety Proctor and subsequent SNP array-based bulk segregant analysis, fine mapped the mutation to a cM scale. Exome sequencing pinpointed a mutation in the candidate gene HvPIN1a, further confirming this by analysing independent mutant alleles. Detailed analysis of root growth and anatomy in Hvpin1a mutant alleles exhibited a slower growth rate, shorter apical meristem and striking vascular patterning defects compared to WT. Expression and mutant analyses of PIN1 members in the closely related cereal brachypodium (Brachypodium distachyon) revealed that BdPIN1a and BdPIN1b were redundantly expressed in root vascular tissues but only Bdpin1a mutant allele displayed root vascular defects similar to Hvpin1a. We conclude that barley PIN1 genes have sub-functionalised in cereals, compared to Arabidopsis (Arabidopsis thaliana), where PIN1a sequences control root vascular patterning
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|a Journal Article
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|a PIN1
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|a auxin efflux carrier
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|a barley
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|a root
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|a vascular development
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|a Plant Proteins
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|a Indoleacetic Acids
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|a Membrane Transport Proteins
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|a Milner, Sara Giulia
|e verfasserin
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|a Rosignoli, Serena
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|a Bovina, Riccardo
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|a De Jesus Vieira Teixeira, Cristovão
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|a Lou, Haoyu
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|a Atkinson, Brian S
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|a Borkar, Aditi N
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|a York, Larry M
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|a Jones, Dylan H
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|a Sturrock, Craig J
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|a Stein, Nils
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|a Mascher, Martin
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|a Tuberosa, Roberto
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|a O'Connor, Devin
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|a Bennett, Malcolm J
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|a Bishopp, Anthony
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|a Salvi, Silvio
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|a Bhosale, Rahul
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 244(2024), 1 vom: 01. Sept., Seite 104-115
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:244
|g year:2024
|g number:1
|g day:01
|g month:09
|g pages:104-115
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|u http://dx.doi.org/10.1111/nph.19777
|3 Volltext
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