Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions

Selecting an appropriate reference gene is of crucial importance for improving the accuracy of qRT-PCR analyses. In this study, strawberry (<i>Fragaria ananassa</i>) seedlings were subjected to different environmental conditions including heat, cold, drought, salt, white-light, blue-ligh...

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Main Authors: Yuntian Ye, Yang Lu, Guangyi Wang, Yongqiang Liu, Yunting Zhang, Haoru Tang
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/7/11/452
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author Yuntian Ye
Yang Lu
Guangyi Wang
Yongqiang Liu
Yunting Zhang
Haoru Tang
author_facet Yuntian Ye
Yang Lu
Guangyi Wang
Yongqiang Liu
Yunting Zhang
Haoru Tang
author_sort Yuntian Ye
collection DOAJ
description Selecting an appropriate reference gene is of crucial importance for improving the accuracy of qRT-PCR analyses. In this study, strawberry (<i>Fragaria ananassa</i>) seedlings were subjected to different environmental conditions including heat, cold, drought, salt, white-light, blue-light, and red-light treatments. The expression levels of seven candidate reference genes, including <i>Fa18S</i>, <i>FaGAPDH</i>, <i>FaPIRUV</i>, <i>FaDBP</i>, <i>FaHISTH4</i>, <i>FaACTIN1</i>, and <i>FaACTIN2</i>, in the strawberry leaves were measured by qRT-PCR. Then, four programs (geNorm, NormFinder, BestKeeper, and RefFinder) were employed as tools to evaluate the expression stability of the candidate reference genes. The results showed that the expression stability of the reference genes varied under different conditions. For the cold stress and white-light treatments, <i>FaACTIN2</i> was evaluated to be the most stable reference gene. <i>FaGAPDH</i> should be used as the reference gene under salt-stress condition and red-light treatment. For the data normalization under drought-stress treatment, <i>FaDBP</i> is the recommended reference gene with the highest expression stability. <i>FaHISTH4</i> was observed to be the best reference gene for data normalization under heat stress and blue-light treatment. This work provides information on selecting reference genes for accurate gene expression analyses of target genes in strawberry leaves under various abiotic stress and light-quality conditions.
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spelling doaj.art-e0847a8d5fc34697b2a3cad25da9f1192023-11-22T23:33:53ZengMDPI AGHorticulturae2311-75242021-11-0171145210.3390/horticulturae7110452Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality ConditionsYuntian Ye0Yang Lu1Guangyi Wang2Yongqiang Liu3Yunting Zhang4Haoru Tang5College of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaSelecting an appropriate reference gene is of crucial importance for improving the accuracy of qRT-PCR analyses. In this study, strawberry (<i>Fragaria ananassa</i>) seedlings were subjected to different environmental conditions including heat, cold, drought, salt, white-light, blue-light, and red-light treatments. The expression levels of seven candidate reference genes, including <i>Fa18S</i>, <i>FaGAPDH</i>, <i>FaPIRUV</i>, <i>FaDBP</i>, <i>FaHISTH4</i>, <i>FaACTIN1</i>, and <i>FaACTIN2</i>, in the strawberry leaves were measured by qRT-PCR. Then, four programs (geNorm, NormFinder, BestKeeper, and RefFinder) were employed as tools to evaluate the expression stability of the candidate reference genes. The results showed that the expression stability of the reference genes varied under different conditions. For the cold stress and white-light treatments, <i>FaACTIN2</i> was evaluated to be the most stable reference gene. <i>FaGAPDH</i> should be used as the reference gene under salt-stress condition and red-light treatment. For the data normalization under drought-stress treatment, <i>FaDBP</i> is the recommended reference gene with the highest expression stability. <i>FaHISTH4</i> was observed to be the best reference gene for data normalization under heat stress and blue-light treatment. This work provides information on selecting reference genes for accurate gene expression analyses of target genes in strawberry leaves under various abiotic stress and light-quality conditions.https://www.mdpi.com/2311-7524/7/11/452strawberryreference genesqRT-PCR analysisexpression stability
spellingShingle Yuntian Ye
Yang Lu
Guangyi Wang
Yongqiang Liu
Yunting Zhang
Haoru Tang
Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
Horticulturae
strawberry
reference genes
qRT-PCR analysis
expression stability
title Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
title_full Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
title_fullStr Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
title_full_unstemmed Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
title_short Stable Reference Gene Selection for qRT-PCR Normalization in Strawberry (<i>Fragaria × ananassa</i>) Leaves under Different Stress and Light-Quality Conditions
title_sort stable reference gene selection for qrt pcr normalization in strawberry i fragaria ananassa i leaves under different stress and light quality conditions
topic strawberry
reference genes
qRT-PCR analysis
expression stability
url https://www.mdpi.com/2311-7524/7/11/452
work_keys_str_mv AT yuntianye stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions
AT yanglu stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions
AT guangyiwang stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions
AT yongqiangliu stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions
AT yuntingzhang stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions
AT haorutang stablereferencegeneselectionforqrtpcrnormalizationinstrawberryifragariaananassaileavesunderdifferentstressandlightqualityconditions