GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis

Soybean (Glycine max) is an important economic crop that provides abundant oil and high quality protein for human beings. As the process of reproductive growth directly determines the crop seed yield and quality, we initiated studies to identify genes that regulate soybean floral organ development....

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Main Authors: Hui Yang, Qian Xue, Zhenzhen Zhang, Jingyi Du, Deyue Yu, Fang Huang
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-07-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpls.2018.01027/full
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author Hui Yang
Qian Xue
Zhenzhen Zhang
Jingyi Du
Deyue Yu
Fang Huang
author_facet Hui Yang
Qian Xue
Zhenzhen Zhang
Jingyi Du
Deyue Yu
Fang Huang
author_sort Hui Yang
collection DOAJ
description Soybean (Glycine max) is an important economic crop that provides abundant oil and high quality protein for human beings. As the process of reproductive growth directly determines the crop seed yield and quality, we initiated studies to identify genes that regulate soybean floral organ development. One R2R3-MYB transcription factor gene, designated as GmMYB181, was found to be enriched in flowers based on microarray analysis and was further functionally investigated in transgenic Arabidopsis. GmMYB181 protein contains two MYB domains, which localized to the nucleus and displayed transcriptional activation in yeast hybrid system. Real-time quantitative PCR (qRT-PCR) results suggested GmMYB181 exclusively expressed in flower tissue. In Arabidopsis, overexpression of GmMYB181 altered the morphology of floral organs, fruit size and plant architecture, including outward curly sepals, smaller siliques, increased lateral branches and reduced plant height, indicating that GmMYB181 is involved in the development of reproductive organs and plays an important role in controlling plant architecture. Further, microarray analysis revealed that overexpressing GmMYB181 in Arabidopsis affected the expression of 3450 genes in mature flowers, including those involved in floral organ, seed/fruit development, and responded to different hormone signals.
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spelling doaj.art-b5457f5d713644259bf50d932dab8c082022-12-22T02:19:58ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2018-07-01910.3389/fpls.2018.01027386110GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic ArabidopsisHui YangQian XueZhenzhen ZhangJingyi DuDeyue YuFang HuangSoybean (Glycine max) is an important economic crop that provides abundant oil and high quality protein for human beings. As the process of reproductive growth directly determines the crop seed yield and quality, we initiated studies to identify genes that regulate soybean floral organ development. One R2R3-MYB transcription factor gene, designated as GmMYB181, was found to be enriched in flowers based on microarray analysis and was further functionally investigated in transgenic Arabidopsis. GmMYB181 protein contains two MYB domains, which localized to the nucleus and displayed transcriptional activation in yeast hybrid system. Real-time quantitative PCR (qRT-PCR) results suggested GmMYB181 exclusively expressed in flower tissue. In Arabidopsis, overexpression of GmMYB181 altered the morphology of floral organs, fruit size and plant architecture, including outward curly sepals, smaller siliques, increased lateral branches and reduced plant height, indicating that GmMYB181 is involved in the development of reproductive organs and plays an important role in controlling plant architecture. Further, microarray analysis revealed that overexpressing GmMYB181 in Arabidopsis affected the expression of 3450 genes in mature flowers, including those involved in floral organ, seed/fruit development, and responded to different hormone signals.https://www.frontiersin.org/article/10.3389/fpls.2018.01027/fullsoybeanMYB transcription factorGmMYB181floral organbranch number
spellingShingle Hui Yang
Qian Xue
Zhenzhen Zhang
Jingyi Du
Deyue Yu
Fang Huang
GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
Frontiers in Plant Science
soybean
MYB transcription factor
GmMYB181
floral organ
branch number
title GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
title_full GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
title_fullStr GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
title_full_unstemmed GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
title_short GmMYB181, a Soybean R2R3-MYB Protein, Increases Branch Number in Transgenic Arabidopsis
title_sort gmmyb181 a soybean r2r3 myb protein increases branch number in transgenic arabidopsis
topic soybean
MYB transcription factor
GmMYB181
floral organ
branch number
url https://www.frontiersin.org/article/10.3389/fpls.2018.01027/full
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