Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae

Since the last century, episodes of coral reef bleaching and mortality have occurred almost annually in tropical or subtropical seas. When the temperature exceeds the tolerant limit of a coral–zooxanthellae holobiont, it induces physiological stress and disrupts the vulnerable fine-tuned balance bet...

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Main Authors: Zhuojun Guo, Xin Liao, Tingyu Han, Junyuan Chen, Chunpeng He, Zuhong Lu
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/13/11/543
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author Zhuojun Guo
Xin Liao
Tingyu Han
Junyuan Chen
Chunpeng He
Zuhong Lu
author_facet Zhuojun Guo
Xin Liao
Tingyu Han
Junyuan Chen
Chunpeng He
Zuhong Lu
author_sort Zhuojun Guo
collection DOAJ
description Since the last century, episodes of coral reef bleaching and mortality have occurred almost annually in tropical or subtropical seas. When the temperature exceeds the tolerant limit of a coral–zooxanthellae holobiont, it induces physiological stress and disrupts the vulnerable fine-tuned balance between the two partners, leading to bleaching. The gene expression profiles of a scleractinian coral and its symbiotic zooxanthellae can offer important information with which to decipher this balanced relationship at the functional level of genes. Here, we sequence a full-length transcriptome of a well-known, common and frequently dominant reef-building coral, <i>Pocillopora damicornis</i>, to acquire gene expression information for the coral–zooxanthellae holobiont. To this end, we identify 21,926 and 465 unique genes in the coral and algal symbiont, respectively, and examine the functional enrichment among these genes based on GO (gene ontology) terms and KEGG (the Kyoto Encyclopedia of Genes and Genomes) pathways. The results show that the zooxanthellae provide for their coral host through energy and nutrition metabolism by photosynthesis, and that both the coral host and zooxanthellae have an anti-stress molecular mechanism, though the two parties have independent abilities to survive in the short term. This work sheds light on the valuable gene expression profile of a coral–zooxanthellae holobiont and provides grounds for further molecular biological research to support ecological protection work.
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spelling doaj.art-6b8de2018b554673b5da3aa88bb3a8cd2023-11-22T23:03:51ZengMDPI AGDiversity1424-28182021-10-01131154310.3390/d13110543Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont ZooxanthellaeZhuojun Guo0Xin Liao1Tingyu Han2Junyuan Chen3Chunpeng He4Zuhong Lu5State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, ChinaGuangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Guangxi Academy of Sciences, Beihai 536000, ChinaState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, ChinaNanjing Institute of Paleontology and Geology, Nanjing 210008, ChinaState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, ChinaSince the last century, episodes of coral reef bleaching and mortality have occurred almost annually in tropical or subtropical seas. When the temperature exceeds the tolerant limit of a coral–zooxanthellae holobiont, it induces physiological stress and disrupts the vulnerable fine-tuned balance between the two partners, leading to bleaching. The gene expression profiles of a scleractinian coral and its symbiotic zooxanthellae can offer important information with which to decipher this balanced relationship at the functional level of genes. Here, we sequence a full-length transcriptome of a well-known, common and frequently dominant reef-building coral, <i>Pocillopora damicornis</i>, to acquire gene expression information for the coral–zooxanthellae holobiont. To this end, we identify 21,926 and 465 unique genes in the coral and algal symbiont, respectively, and examine the functional enrichment among these genes based on GO (gene ontology) terms and KEGG (the Kyoto Encyclopedia of Genes and Genomes) pathways. The results show that the zooxanthellae provide for their coral host through energy and nutrition metabolism by photosynthesis, and that both the coral host and zooxanthellae have an anti-stress molecular mechanism, though the two parties have independent abilities to survive in the short term. This work sheds light on the valuable gene expression profile of a coral–zooxanthellae holobiont and provides grounds for further molecular biological research to support ecological protection work.https://www.mdpi.com/1424-2818/13/11/543full-length transcriptomegene expression profilereef-building coralzooxanthellaeholobiont<i>Pocillopora damicornis</i>
spellingShingle Zhuojun Guo
Xin Liao
Tingyu Han
Junyuan Chen
Chunpeng He
Zuhong Lu
Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
Diversity
full-length transcriptome
gene expression profile
reef-building coral
zooxanthellae
holobiont
<i>Pocillopora damicornis</i>
title Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
title_full Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
title_fullStr Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
title_full_unstemmed Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
title_short Full-Length Transcriptomics Reveal the Gene Expression Profiles of Reef-Building Coral <i>Pocillopora damicornis</i> and Symbiont Zooxanthellae
title_sort full length transcriptomics reveal the gene expression profiles of reef building coral i pocillopora damicornis i and symbiont zooxanthellae
topic full-length transcriptome
gene expression profile
reef-building coral
zooxanthellae
holobiont
<i>Pocillopora damicornis</i>
url https://www.mdpi.com/1424-2818/13/11/543
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