Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development

[Objective] This study seeks to identify and analyze the PIN gene family members in pepper (Capsicum annuum L.) and to investigate their expression patterns in the abscission zone of the fruit pedicel as well as during root development. The ultimate goal is to provide candidate genes for elucidati...

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Main Authors: HE Lei, YAN Xi, LAI Wei, LIU Chongzheng, YANG Hong, HE Jianwen
Format: Article
Language:zho
Published: Science Press 2024-12-01
Series:Xibei zhiwu xuebao
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Online Access:http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240347?st=article_issue
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author HE Lei
YAN Xi
LAI Wei
LIU Chongzheng
YANG Hong
HE Jianwen
author_facet HE Lei
YAN Xi
LAI Wei
LIU Chongzheng
YANG Hong
HE Jianwen
author_sort HE Lei
collection DOAJ
description [Objective] This study seeks to identify and analyze the PIN gene family members in pepper (Capsicum annuum L.) and to investigate their expression patterns in the abscission zone of the fruit pedicel as well as during root development. The ultimate goal is to provide candidate genes for elucidating the function of CaPINs and for breeding new pepper varieties. [Methods] PIN genes were identified through whole-genome screening of pepper, followed by comprehensive bioinformatics analysis. The expression patterns of these genes in the fruit pedicel abscission zone and during root development were systematically analyzed. [Results] 9 members of the PIN gene family were identified in the pepper genome and designated as CaPIN1 through CaPIN9. These genes are distributed across seven chromosomes, with CaPIN9 remaining unanchored. The proteins encoded by these genes exhibit amino acid length ranging from 358 to 654 residues, molecular weight from 39 251.05 D to 71 170.91 D, and isoelectric point from 6.40 to 9.38. Most of these proteins are stable. Additionally, significant collinearity was observed among the CaPINs, indicating a close genetic relationship with the tomato genome. CaPINs encompass a multitude of elements associated with growth, environmental responses, and hormonal signaling. Transcriptome data analysis revealed that the expression of CaPINs in pepper was tissue-specific. Quantitative PCR results demonstrated that CaPINs exhibited differential expression levels across various fruit pedicel abscission zones and throughout root development. [Conclusion] CaPINs play a crucial role in the development of the pedicel abscission zone and the growth and development of the root system. These genes hold significant potential as candidates for breeding pepper varieties with improved ease of de-stemming and for enhancing genetic traits related to root systems.
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institution Kabale University
issn 1000-4025
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series Xibei zhiwu xuebao
spelling doaj-art-04b7a9ed00b14df8a17484aad81c84a12025-02-10T12:26:19ZzhoScience PressXibei zhiwu xuebao1000-40252024-12-0144121878188910.7606/j.issn.1000-4025.20240347Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root developmentHE Lei0YAN Xi1LAI Wei2LIU Chongzheng3YANG Hong4HE Jianwen5Institute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, ChinaInstitute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, ChinaInstitute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, ChinaInstitute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, ChinaInstitute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, ChinaInstitute of Pepper, Guizhou Academy of Agricultural Sciences, Guiyang 550025, China[Objective] This study seeks to identify and analyze the PIN gene family members in pepper (Capsicum annuum L.) and to investigate their expression patterns in the abscission zone of the fruit pedicel as well as during root development. The ultimate goal is to provide candidate genes for elucidating the function of CaPINs and for breeding new pepper varieties. [Methods] PIN genes were identified through whole-genome screening of pepper, followed by comprehensive bioinformatics analysis. The expression patterns of these genes in the fruit pedicel abscission zone and during root development were systematically analyzed. [Results] 9 members of the PIN gene family were identified in the pepper genome and designated as CaPIN1 through CaPIN9. These genes are distributed across seven chromosomes, with CaPIN9 remaining unanchored. The proteins encoded by these genes exhibit amino acid length ranging from 358 to 654 residues, molecular weight from 39 251.05 D to 71 170.91 D, and isoelectric point from 6.40 to 9.38. Most of these proteins are stable. Additionally, significant collinearity was observed among the CaPINs, indicating a close genetic relationship with the tomato genome. CaPINs encompass a multitude of elements associated with growth, environmental responses, and hormonal signaling. Transcriptome data analysis revealed that the expression of CaPINs in pepper was tissue-specific. Quantitative PCR results demonstrated that CaPINs exhibited differential expression levels across various fruit pedicel abscission zones and throughout root development. [Conclusion] CaPINs play a crucial role in the development of the pedicel abscission zone and the growth and development of the root system. These genes hold significant potential as candidates for breeding pepper varieties with improved ease of de-stemming and for enhancing genetic traits related to root systems.http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240347?st=article_issuepepperpedicelspin gene familybioinformaticsexpression analysis
spellingShingle HE Lei
YAN Xi
LAI Wei
LIU Chongzheng
YANG Hong
HE Jianwen
Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
Xibei zhiwu xuebao
pepper
pedicels
pin gene family
bioinformatics
expression analysis
title Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
title_full Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
title_fullStr Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
title_full_unstemmed Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
title_short Genome-wide identification and expression analysis of the PIN gene family in the pepper pedicel abscission zone and during root development
title_sort genome wide identification and expression analysis of the pin gene family in the pepper pedicel abscission zone and during root development
topic pepper
pedicels
pin gene family
bioinformatics
expression analysis
url http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240347?st=article_issue
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AT yanxi genomewideidentificationandexpressionanalysisofthepingenefamilyinthepepperpedicelabscissionzoneandduringrootdevelopment
AT laiwei genomewideidentificationandexpressionanalysisofthepingenefamilyinthepepperpedicelabscissionzoneandduringrootdevelopment
AT liuchongzheng genomewideidentificationandexpressionanalysisofthepingenefamilyinthepepperpedicelabscissionzoneandduringrootdevelopment
AT yanghong genomewideidentificationandexpressionanalysisofthepingenefamilyinthepepperpedicelabscissionzoneandduringrootdevelopment
AT hejianwen genomewideidentificationandexpressionanalysisofthepingenefamilyinthepepperpedicelabscissionzoneandduringrootdevelopment