Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation

Auxin-responsive genes <i>AUX/IAA</i> are important during plant growth and development, but there are few relevant reports in peanut. In this study, 44 <i>AhIAA</i> genes were identified from cultivated peanut, of which 31 genes were expressed in seed at varying degrees. <...

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Main Authors: Xiurong Zhang, Kun Zhang, Lu Luo, Yuying Lv, Yuying Li, Suqing Zhu, Bing Luo, Yongshan Wan, Xiansheng Zhang, Fengzhen Liu
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/11/4/472
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author Xiurong Zhang
Kun Zhang
Lu Luo
Yuying Lv
Yuying Li
Suqing Zhu
Bing Luo
Yongshan Wan
Xiansheng Zhang
Fengzhen Liu
author_facet Xiurong Zhang
Kun Zhang
Lu Luo
Yuying Lv
Yuying Li
Suqing Zhu
Bing Luo
Yongshan Wan
Xiansheng Zhang
Fengzhen Liu
author_sort Xiurong Zhang
collection DOAJ
description Auxin-responsive genes <i>AUX/IAA</i> are important during plant growth and development, but there are few relevant reports in peanut. In this study, 44 <i>AhIAA</i> genes were identified from cultivated peanut, of which 31 genes were expressed in seed at varying degrees. <i>AhIAA-3A</i>, <i>AhIAA-16A</i> and <i>AhIAA-15B</i> were up-regulated, while <i>AhIAA-11A</i>, <i>AhIAA-5B</i> and <i>AhIAA-14B</i> were down-regulated with seed development and maturation. The expression patterns of seven genes, <i>AhIAA-1A</i>, <i>AhIAA-4A</i>, <i>AhIAA-10A</i>, <i>AhIAA-20A</i>, <i>AhIAA-1B</i>, <i>AhIAA-4B</i> and <i>AhIAA-19B</i>, were consistent with the change trend of auxin, and expression in late-maturing variety LM was significantly higher than that in early-maturing EM. Furthermore, allelic polymorphism analysis of <i>AhIAA-1A</i> and <i>AhIAA-1B</i>, which were specifically expressed in seeds, showed that three SNP loci in 3′UTR of <i>AhIAA-1A</i> could effectively distinguish the EM- and LM- type germplasm, providing a basis for breeding markers development. Our results offered a comprehensive understanding of <i>Aux/IAA</i> genes in peanut and provided valuable clues for further investigation of the auxin signal transduction pathway and auxin regulation mechanism in peanut.
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spelling doaj.art-f5d2604d2f584d7f9de4aa64cbaed94b2023-11-23T21:41:56ZengMDPI AGPlants2223-77472022-02-0111447210.3390/plants11040472Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and MaturationXiurong Zhang0Kun Zhang1Lu Luo2Yuying Lv3Yuying Li4Suqing Zhu5Bing Luo6Yongshan Wan7Xiansheng Zhang8Fengzhen Liu9State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaState Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, ChinaAuxin-responsive genes <i>AUX/IAA</i> are important during plant growth and development, but there are few relevant reports in peanut. In this study, 44 <i>AhIAA</i> genes were identified from cultivated peanut, of which 31 genes were expressed in seed at varying degrees. <i>AhIAA-3A</i>, <i>AhIAA-16A</i> and <i>AhIAA-15B</i> were up-regulated, while <i>AhIAA-11A</i>, <i>AhIAA-5B</i> and <i>AhIAA-14B</i> were down-regulated with seed development and maturation. The expression patterns of seven genes, <i>AhIAA-1A</i>, <i>AhIAA-4A</i>, <i>AhIAA-10A</i>, <i>AhIAA-20A</i>, <i>AhIAA-1B</i>, <i>AhIAA-4B</i> and <i>AhIAA-19B</i>, were consistent with the change trend of auxin, and expression in late-maturing variety LM was significantly higher than that in early-maturing EM. Furthermore, allelic polymorphism analysis of <i>AhIAA-1A</i> and <i>AhIAA-1B</i>, which were specifically expressed in seeds, showed that three SNP loci in 3′UTR of <i>AhIAA-1A</i> could effectively distinguish the EM- and LM- type germplasm, providing a basis for breeding markers development. Our results offered a comprehensive understanding of <i>Aux/IAA</i> genes in peanut and provided valuable clues for further investigation of the auxin signal transduction pathway and auxin regulation mechanism in peanut.https://www.mdpi.com/2223-7747/11/4/472auxin<i>Aux/IAA</i>peanutseed developmentgrowth period
spellingShingle Xiurong Zhang
Kun Zhang
Lu Luo
Yuying Lv
Yuying Li
Suqing Zhu
Bing Luo
Yongshan Wan
Xiansheng Zhang
Fengzhen Liu
Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
Plants
auxin
<i>Aux/IAA</i>
peanut
seed development
growth period
title Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
title_full Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
title_fullStr Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
title_full_unstemmed Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
title_short Identification of Peanut <i>Aux/IAA</i> Genes and Functional Prediction during Seed Development and Maturation
title_sort identification of peanut i aux iaa i genes and functional prediction during seed development and maturation
topic auxin
<i>Aux/IAA</i>
peanut
seed development
growth period
url https://www.mdpi.com/2223-7747/11/4/472
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