Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance

Annexin (Ann) is a polygenic, evolutionarily conserved, calcium-dependent and phospholipid-binding protein family, which plays key roles in plant growth, development, and stress response. However, a comprehensive understanding of <i>CaAnn</i> genes of pepper (<i>Capsicum annuum<...

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Main Authors: Xiaoxia Wu, Yan Ren, Hailong Jiang, Yan Wang, Jiaxing Yan, Xiaoying Xu, Fucai Zhou, Haidong Ding
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/16/8667
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author Xiaoxia Wu
Yan Ren
Hailong Jiang
Yan Wang
Jiaxing Yan
Xiaoying Xu
Fucai Zhou
Haidong Ding
author_facet Xiaoxia Wu
Yan Ren
Hailong Jiang
Yan Wang
Jiaxing Yan
Xiaoying Xu
Fucai Zhou
Haidong Ding
author_sort Xiaoxia Wu
collection DOAJ
description Annexin (Ann) is a polygenic, evolutionarily conserved, calcium-dependent and phospholipid-binding protein family, which plays key roles in plant growth, development, and stress response. However, a comprehensive understanding of <i>CaAnn</i> genes of pepper (<i>Capsicum annuum</i>) at the genome-wide level is limited. Based on the available pepper genomic information, we identified 15 members of the <i>CaAnn</i> gene family. Phylogenetic analysis showed that CaAnn proteins could be categorized into four different orthologous groups. Real time quantitative RT-PCR analysis showed that the <i>CaAnn</i> genes were tissue-specific and were widely expressed in pepper leaves after treatments with cold, salt, and drought, as well as exogenously applied MeJA and ABA. In addition, the function of <i>CaAnn9</i> was further explored using the virus-induced gene silencing (VIGS) technique. <i>CaAnn9</i>-silenced pepper seedlings were more sensitive to salt stress, reflected by the degradation of chlorophyll, the accumulation of reactive oxygen species (ROS), and the decrease of antioxidant defense capacity. This study provides important information for further study of the role of pepper <i>CaAnn</i> genes and their coding proteins in growth, development, and environmental responses.
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spelling doaj.art-043cdd3fb58f4a6da94a3a5ecc74b6622023-11-22T07:58:36ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-08-012216866710.3390/ijms22168667Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt ToleranceXiaoxia Wu0Yan Ren1Hailong Jiang2Yan Wang3Jiaxing Yan4Xiaoying Xu5Fucai Zhou6Haidong Ding7Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaCollege of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, ChinaJoint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, ChinaAnnexin (Ann) is a polygenic, evolutionarily conserved, calcium-dependent and phospholipid-binding protein family, which plays key roles in plant growth, development, and stress response. However, a comprehensive understanding of <i>CaAnn</i> genes of pepper (<i>Capsicum annuum</i>) at the genome-wide level is limited. Based on the available pepper genomic information, we identified 15 members of the <i>CaAnn</i> gene family. Phylogenetic analysis showed that CaAnn proteins could be categorized into four different orthologous groups. Real time quantitative RT-PCR analysis showed that the <i>CaAnn</i> genes were tissue-specific and were widely expressed in pepper leaves after treatments with cold, salt, and drought, as well as exogenously applied MeJA and ABA. In addition, the function of <i>CaAnn9</i> was further explored using the virus-induced gene silencing (VIGS) technique. <i>CaAnn9</i>-silenced pepper seedlings were more sensitive to salt stress, reflected by the degradation of chlorophyll, the accumulation of reactive oxygen species (ROS), and the decrease of antioxidant defense capacity. This study provides important information for further study of the role of pepper <i>CaAnn</i> genes and their coding proteins in growth, development, and environmental responses.https://www.mdpi.com/1422-0067/22/16/8667annexinbioinformatic analysis<i>CaAnn9</i>oxidative damagepeppersalt stress
spellingShingle Xiaoxia Wu
Yan Ren
Hailong Jiang
Yan Wang
Jiaxing Yan
Xiaoying Xu
Fucai Zhou
Haidong Ding
Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
International Journal of Molecular Sciences
annexin
bioinformatic analysis
<i>CaAnn9</i>
oxidative damage
pepper
salt stress
title Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
title_full Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
title_fullStr Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
title_full_unstemmed Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
title_short Genome-Wide Identification and Transcriptional Expression Analysis of Annexin Genes in <i>Capsicum annuum</i> and Characterization of <i>CaAnn9</i> in Salt Tolerance
title_sort genome wide identification and transcriptional expression analysis of annexin genes in i capsicum annuum i and characterization of i caann9 i in salt tolerance
topic annexin
bioinformatic analysis
<i>CaAnn9</i>
oxidative damage
pepper
salt stress
url https://www.mdpi.com/1422-0067/22/16/8667
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