Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress

SWEETs (sugars will eventually be exported transporters), a well-known class of sugar transporters, are involved in plant growth and development, sugar transport, biotic and abiotic stresses, etc. However, to date, there have been few investigations of <i>SWEETs</i> in Orchidaceae. In th...

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Main Authors: Chan Lu, Jun Ye, Yuanqing Chang, Zeyuan Mi, Shuai Liu, Donghao Wang, Zhezhi Wang, Junfeng Niu
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/17/10057
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author Chan Lu
Jun Ye
Yuanqing Chang
Zeyuan Mi
Shuai Liu
Donghao Wang
Zhezhi Wang
Junfeng Niu
author_facet Chan Lu
Jun Ye
Yuanqing Chang
Zeyuan Mi
Shuai Liu
Donghao Wang
Zhezhi Wang
Junfeng Niu
author_sort Chan Lu
collection DOAJ
description SWEETs (sugars will eventually be exported transporters), a well-known class of sugar transporters, are involved in plant growth and development, sugar transport, biotic and abiotic stresses, etc. However, to date, there have been few investigations of <i>SWEETs</i> in Orchidaceae. In this study, 23 <i>SWEET</i> genes were identified in <i>Bletilla striata</i> for the first time, with an MtN3/saliva conserved domain, and were divided into four subgroups by phylogenetic tree. The same subfamily members had similar gene structures and motifs. Multiple <i>cis</i>-elements related to sugar and environmental stresses were found in the promoter region. Further, 21 genes were localized on 11 chromosomes and 2 paralogous pairs were found via intraspecific collinearity analysis. Expression profiling results showed that <i>BsSWEETs</i> were tissue-specific. It also revealed that <i>BsSWEET10</i> and <i>BsSWEET18</i> were responsive to low temperature and oxidative stresses. In addition, subcellular localization study indicated that <i>BsSWEET15</i> and <i>BsSWEET16</i> were localized in the cell membrane. This study provided important clues for the in-depth elucidation of the sugar transport mechanism of <i>BsSWEET</i> genes and their functional roles in response to abiotic stresses.
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spelling doaj.art-e3bcf4d9c694464eb70d9a1ed586fa862023-11-23T13:22:22ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-09-0123171005710.3390/ijms231710057Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative StressChan Lu0Jun Ye1Yuanqing Chang2Zeyuan Mi3Shuai Liu4Donghao Wang5Zhezhi Wang6Junfeng Niu7National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaNational Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaSWEETs (sugars will eventually be exported transporters), a well-known class of sugar transporters, are involved in plant growth and development, sugar transport, biotic and abiotic stresses, etc. However, to date, there have been few investigations of <i>SWEETs</i> in Orchidaceae. In this study, 23 <i>SWEET</i> genes were identified in <i>Bletilla striata</i> for the first time, with an MtN3/saliva conserved domain, and were divided into four subgroups by phylogenetic tree. The same subfamily members had similar gene structures and motifs. Multiple <i>cis</i>-elements related to sugar and environmental stresses were found in the promoter region. Further, 21 genes were localized on 11 chromosomes and 2 paralogous pairs were found via intraspecific collinearity analysis. Expression profiling results showed that <i>BsSWEETs</i> were tissue-specific. It also revealed that <i>BsSWEET10</i> and <i>BsSWEET18</i> were responsive to low temperature and oxidative stresses. In addition, subcellular localization study indicated that <i>BsSWEET15</i> and <i>BsSWEET16</i> were localized in the cell membrane. This study provided important clues for the in-depth elucidation of the sugar transport mechanism of <i>BsSWEET</i> genes and their functional roles in response to abiotic stresses.https://www.mdpi.com/1422-0067/23/17/10057<i>Bletilla striata</i>expression patternsubcellular localization<i>SWEET</i>
spellingShingle Chan Lu
Jun Ye
Yuanqing Chang
Zeyuan Mi
Shuai Liu
Donghao Wang
Zhezhi Wang
Junfeng Niu
Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
International Journal of Molecular Sciences
<i>Bletilla striata</i>
expression pattern
subcellular localization
<i>SWEET</i>
title Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
title_full Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
title_fullStr Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
title_full_unstemmed Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
title_short Genome-Wide Identification and Expression Patterns of the <i>SWEET</i> Gene Family in <i>Bletilla striata</i> and its Responses to Low Temperature and Oxidative Stress
title_sort genome wide identification and expression patterns of the i sweet i gene family in i bletilla striata i and its responses to low temperature and oxidative stress
topic <i>Bletilla striata</i>
expression pattern
subcellular localization
<i>SWEET</i>
url https://www.mdpi.com/1422-0067/23/17/10057
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