Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard

Abstract Linoleic acid (C18:2) is an important polyunsaturated fatty acid in the seed oil of many crops. Here, we report that mutations in the promoter, intron and CDS of the FAD2 genes SalFAD2.LIA1 and SalFAD2.LIA2 generate three alleles LIA 1a , LIA 1b and lia 1 and two alleles LIA 2 and lia 2, re...

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Autores principales: Fangqin Zeng, Vicky Roslinsky, Bifang Cheng
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/0022117cd50c484683619d1df1a7b611
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spelling oai:doaj.org-article:0022117cd50c484683619d1df1a7b6112021-12-02T15:05:40ZMutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard10.1038/s41598-017-08317-y2045-2322https://doaj.org/article/0022117cd50c484683619d1df1a7b6112017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08317-yhttps://doaj.org/toc/2045-2322Abstract Linoleic acid (C18:2) is an important polyunsaturated fatty acid in the seed oil of many crops. Here, we report that mutations in the promoter, intron and CDS of the FAD2 genes SalFAD2.LIA1 and SalFAD2.LIA2 generate three alleles LIA 1a , LIA 1b and lia 1 and two alleles LIA 2 and lia 2, respectively, controlling the C18:2 variation (4.4–32.7%) in yellow mustard. The allelic effect on increasing C18:2 content is LIA 1a  > LIA 1b  > lia 1 , LIA 2 > lia 2, and LIA 1a  > LIA 2. The five FAD 2 alleles each contain two exons, one intron and a promoter adjacent to exon 1. LIA 1a has a 1152 bp CDS, a 1221 bp intron with promoter function and a 607 bp promoter. Compared with LIA 1a , the intron of LIA 1b has reduced promoter activity and that of LIA 2 and lia 2 has no promoter function due to extensive SNP and indel mutations. lia 1 differed from LIA 1b by having an insertion of 1223 bp retrotransposon in its intron. lia 2 with mutations in the promoter has reduced promoter activity compared with LIA 2 . This study revealed that complex quantitative variation of trait phenotype in plants could be modulated by multiple alleles of oligogenic loci resulting from mutations in the regulatory region and CDS.Fangqin ZengVicky RoslinskyBifang ChengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Fangqin Zeng
Vicky Roslinsky
Bifang Cheng
Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
description Abstract Linoleic acid (C18:2) is an important polyunsaturated fatty acid in the seed oil of many crops. Here, we report that mutations in the promoter, intron and CDS of the FAD2 genes SalFAD2.LIA1 and SalFAD2.LIA2 generate three alleles LIA 1a , LIA 1b and lia 1 and two alleles LIA 2 and lia 2, respectively, controlling the C18:2 variation (4.4–32.7%) in yellow mustard. The allelic effect on increasing C18:2 content is LIA 1a  > LIA 1b  > lia 1 , LIA 2 > lia 2, and LIA 1a  > LIA 2. The five FAD 2 alleles each contain two exons, one intron and a promoter adjacent to exon 1. LIA 1a has a 1152 bp CDS, a 1221 bp intron with promoter function and a 607 bp promoter. Compared with LIA 1a , the intron of LIA 1b has reduced promoter activity and that of LIA 2 and lia 2 has no promoter function due to extensive SNP and indel mutations. lia 1 differed from LIA 1b by having an insertion of 1223 bp retrotransposon in its intron. lia 2 with mutations in the promoter has reduced promoter activity compared with LIA 2 . This study revealed that complex quantitative variation of trait phenotype in plants could be modulated by multiple alleles of oligogenic loci resulting from mutations in the regulatory region and CDS.
format article
author Fangqin Zeng
Vicky Roslinsky
Bifang Cheng
author_facet Fangqin Zeng
Vicky Roslinsky
Bifang Cheng
author_sort Fangqin Zeng
title Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
title_short Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
title_full Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
title_fullStr Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
title_full_unstemmed Mutations in the promoter, intron and CDS of two FAD2 generate multiple alleles modulating linoleic acid level in yellow mustard
title_sort mutations in the promoter, intron and cds of two fad2 generate multiple alleles modulating linoleic acid level in yellow mustard
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/0022117cd50c484683619d1df1a7b611
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AT vickyroslinsky mutationsinthepromoterintronandcdsoftwofad2generatemultipleallelesmodulatinglinoleicacidlevelinyellowmustard
AT bifangcheng mutationsinthepromoterintronandcdsoftwofad2generatemultipleallelesmodulatinglinoleicacidlevelinyellowmustard
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