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Xu Y, Wang Z, Zhang Y, Liang J, He G, Liu X, Zheng Z, Deng Y, Zhao L. Transcriptome analysis reveals acclimation responses of pearl oysters to marine heatwaves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151189. [PMID: 34757105 DOI: 10.1016/j.scitotenv.2021.151189] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/11/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Marine heatwaves (MHWs) are weather-timescale extreme events in the oceans and can have devastating effects on marine bivalves and ecosystems they support, with considerable socio-economic consequences. Yet, the extent to which marine bivalves have the capacity to acclimate and adapt to MHWs remains unknown. Understanding molecular responses to MHWs is imperative to develop strategies for conservation of ecologically and economically important marine organisms. Here, using RNA-Seq, we investigate how various MHWs scenarios elicit molecular changes in threatened and vulnerable pearl oysters, Pinctada maxima (Jameson). Acute exposure of MHWs - mimicked by rapid increases of seawater temperature from 24 °C to 28 °C and 32 °C, respectively - significantly affected the expression levels of metabolic and immune-related genes, with thermal stress-responsive genes especially like HSP20, HSP70 and HSP90 being remarkably up-regulated. Following repeat exposure to MHWs, encouragingly, pearl oysters exhibited evident acclimation responses, as best exemplified by significantly lowered expression levels of key stress-responsive genes involved in metabolism and immunity in comparison to those observed during acute exposure. Findings of the present study provide a better understanding of molecular processes underpinning the acclimation and adaptation of marine bivalves to MHWs in the context of climate change.
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Affiliation(s)
- Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Ziman Wang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yuehuan Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou 510301, China.
| | - Jian Liang
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Zhe Zheng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China.
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Luo X, Cao D, Li H, Zhao D, Xue H, Niu J, Chen L, Zhang F, Cao S. Complementary iTRAQ-based proteomic and RNA sequencing-based transcriptomic analyses reveal a complex network regulating pomegranate (Punica granatum L.) fruit peel colour. Sci Rep 2018; 8:12362. [PMID: 30120285 PMCID: PMC6098015 DOI: 10.1038/s41598-018-30088-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 07/23/2018] [Indexed: 12/25/2022] Open
Abstract
Peel colour is an important factor affecting the marketability of pomegranate fruits. Therefore, elucidating the genetic mechanism of fruit peel colour development may be useful for breeding pomegranate cultivars with enhanced fruit peel colours. In this study, we combined an iTRAQ-based proteome-level analysis with an RNA sequencing-based transcriptome-level analysis to detect the proteins and genes related to fruit peel colour development in pomegranate. We analysed the ‘Tunisia’ (red fruit) and ‘White’ (white fruit) pomegranate cultivars at two stages of fruit development. A total of 27 differentially abundant proteins (increased abundance) and 54 differentially expressed genes (16 up-regulated and 38 down-regulated) were identified from our proteomics and transcriptomics data. The identified proteins and genes contribute to pomegranate fruit peel colour by participating in the biosynthesis of anthocyanins, stilbenoids, diarylheptanoids, gingerols, flavonoids, and phenylpropanoids. Several candidate proteins and genes corresponded to enzymes related to general reactions (PAL, 4CL, DFR, LDOX/ANS, CHS, and F3′5′H) and glycosylation (GT1 and UGAT) of compounds and pigments related to the colour of pomegranate fruit peel. Complementary proteome- and transcriptome-level analyses revealed a complex molecular network controlling fruit peel colour. The candidate genes identified in this study may be useful for the marker-based breeding of new pomegranate cultivars.
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Affiliation(s)
- Xiang Luo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Da Cao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Haoxian Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Diguang Zhao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Hui Xue
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Juan Niu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Lina Chen
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Fuhong Zhang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China
| | - Shangyin Cao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, P. R. China.
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Xue H, Wang S, Yao JL, Zhang X, Yang J, Wang L, Su Y, Chen L, Zhang H, Li X. The genetic locus underlying red foliage and fruit skin traits is mapped to the same location in the two pear bud mutants 'Red Zaosu' and 'Max Red Bartlett'. Hereditas 2018; 155:25. [PMID: 30083084 PMCID: PMC6069814 DOI: 10.1186/s41065-018-0063-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 07/18/2018] [Indexed: 01/11/2023] Open
Abstract
Background Red-skinned pears are attractive to consumers because of their aesthetic appeal and the antioxidant-associated health benefits provided by the anthocyanins in their red skin. In China, the ‘Red Zaosu’ (RZS) red bud mutation of the Zaosu (ZS) pear has been used as a parent in Asian pear breeding to generate new cultivars with crispy red fruit and red tender shoots resembling those of the ‘Max Red Bartlett’ (MRB) pears. Results In this study, a segregation ratio of 1:1 was observed between plants with red or green shoots in four families with RZS as the only red shoot gene donor parent, suggesting that the red shoot trait of RZS is associated with a dominant gene. Three markers, In1400–1, In1579–1 and In1579–3, were chosen from 22 pairs of indel primers targeting regions in the vicinity of the previously identified red fruit skin locus of MRB and were able to effectively distinguish the eight red shoot plants from the eight green shoot plants. Linkage analysis indicated that the genetic distance between the two marker loci (In1579–1 and In1579–3) and the red shoot locus of RZS were both 1.4 cM, while the genetic distance between the In1400–1 marker and the red shoot locus was 2.1 cM. The physical position of the red locus in RZS should be in the 368.6 kb candidate interval at the bottom of LG4. Conclusions The genetic locus responsible for the red tender shoots of RZS was located in the same interval of the red fruit skin gene of MRB, meaning that the bud mutation loci of RZS and MRB may be the same or adjacent to each other, and the red shoot trait and the red fruit skin trait in RZS may be controlled by the same, or a closely linked locus. As a result, breeders could use red shoots as a morphological marker to select for the red-skinned hybrids from RZS families. Electronic supplementary material The online version of this article (10.1186/s41065-018-0063-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Huabai Xue
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Suke Wang
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Jia-Long Yao
- 2The New Zealand Institute for Plant and Food Research Limited, 120 Mt Albert Road, Sandringham, Auckland, 1025 New Zealand
| | - Xiaoli Zhang
- 3Research Institute of Horticultural crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Jian Yang
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Long Wang
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Yanli Su
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Lei Chen
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Huirong Zhang
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
| | - Xiugen Li
- 1Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009 China
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24-Epibrassinoslide enhances plant tolerance to stress from low temperatures and poor light intensities in tomato (Lycopersicon esculentum Mill.). Funct Integr Genomics 2015; 16:29-35. [PMID: 26337714 DOI: 10.1007/s10142-015-0464-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 08/07/2015] [Accepted: 08/16/2015] [Indexed: 01/04/2023]
Abstract
Brassinosteroids (Brs) are a newly recognized group of active steroidal hormones that occur at low concentrations in all plant parts and one of the active and stable forms is 24-epibrassinolide (EBR). We investigated the effect of EBR on tomato (Lycopersicon esculentum Mill.) and its mechanism when seedlings were exposed to low temperature and poor light stress conditions. Leaves of stress-tolerant 'Zhongza9' and stress-sensitive 'Zhongshu4' cultivars were pre-treated with spray solutions containing either 0.1 μM EBR or no EBR (control). The plants were then transferred to chambers where they were exposed to low temperatures of 12 °C/6 °C (day/night) under a low light (LL) level of 80 μmol · m(-2) · s(-1). Exogenous application of EBR significantly increased the antioxidant activity of superoxide dismutase, catalase and peroxidase, and decreased the rate of O2 · (-) formation and H2O2 and malondialdehyde contents. Additionally, the ATP synthase β subunit content was increased by exogenous hormone application. Based on these results, we conclude that exogenous EBR can elicit synergism between the antioxidant enzyme systems and the ATP synthase β subunit so that scavenging of reactive oxygen species becomes more efficient. These activities enable plants to cope better under combined low temperature and poor light stresses.
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Zhu L, Yang Z, Yang Q, Tu Z, Ma L, Shi Z, Li X. Degradation of dexamethasone by acclimated strain of Pseudomonas Alcaligenes. Int J Clin Exp Med 2015; 8:10971-10978. [PMID: 26379892 PMCID: PMC4565275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/10/2015] [Indexed: 06/05/2023]
Abstract
This study is to investigate the use of microbial remediation technology for degradation of dexamethasone in polluted water. A strain of Pseudomonas Alcaligenes with the ability of dexamethasone degradation was isolated from hospital polluted water. This strain was further acclimated into a bacterial strain that could highly degrade dexamethasone. Domesticated bacterial proteins were separated by osmotic shock method and were analyzed using SDS-PAGE. Enzyme activity of dexamethasone degradation was detected by high performance liquid chromatography. Protein bands with different molecular weight were found in all regions of the bacteria and a band with molecular weight of about 100 kDa was most obvious. In intracellular and periplasmic liquid, there was a band with molecular weight of about 41 kDa. Enzyme activity mainly existed in intracellular liquid. The 41 kDa protease was purified using ammonium sulfate precipitation, DEAE-52 ion exchange column and Sephadex G-100 column. Dexamethasone and dexamethasone sodium phosphate degrading rates of the purified enzyme were 36% and 95%, respectively. The 100 kDa protein had a 19% coverage rate to TonB receptor dependent protein, with 11 peptides matching. The 41 kDa protein had a 56% coverage rate to isovaleryl coenzyme A dehydrogenase, with 5 peptides matching. The 41 kDa protein had good degradation between the temperature of 25-40°C and PH value of 6.5-8.5. The enzyme kinetics equation was Ct = C0 e(-0.1769t), in accordance with the first-order kinetic equation. This study laid the foundation for further preparation of bioremediation agents for clearance of dexamethasone pollution in water.
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Affiliation(s)
- Lili Zhu
- Department of Pathogenic Biology, Basic Medical College of Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Zhibang Yang
- Laboratory of Pathogenic Biology and Immunology, Basic Medical Experimental Teaching Center, Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Qian Yang
- Department of Pathogenic Biology, Basic Medical College of Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Zeng Tu
- Department of Pathogenic Biology, Basic Medical College of Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Lianju Ma
- Pharmacy Experimental Teaching Center, Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Zhongquan Shi
- Department of Immunology and Pathogenic Biology, Chongqing Three Gorges Medical CollegeChongqing 404120, P. R. China
| | - Xiaoyu Li
- Department of Pathogenic Biology, Basic Medical College of Chongqing Medical UniversityChongqing 400016, P. R. China
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Qian M, Sun Y, Allan AC, Teng Y, Zhang D. The red sport of 'Zaosu' pear and its red-striped pigmentation pattern are associated with demethylation of the PyMYB10 promoter. PHYTOCHEMISTRY 2014; 107:16-23. [PMID: 25168359 DOI: 10.1016/j.phytochem.2014.08.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 07/09/2014] [Accepted: 07/11/2014] [Indexed: 05/06/2023]
Abstract
'Zaosu' pear, a hybrid of Pyrus pyrifolia and Pyrus communis, is a popular cultivar developed in China. 'Zaosu Red' is a bud sport of 'Zaosu' with red shoots, young leaves, and fruit. After grafting of 'Zaosu Red', reverse mutations in some branches lead to a loss of colour in leaves and stems. Also, the mature fruit of 'Zaosu Red' exhibits two phenotypes; fully red and striped. The aim of this study was to establish the mechanism of the red colour mutation in 'Zaosu' and the striped pigmentation pattern in fruit of 'Zaosu Red'. The accumulation of anthocyanins and transcript levels of the genes PpUFGT2 and PyMYB10 were highly correlated. The open reading frames (ORF) and promoter regions of these two key genes were cloned and compared between 'Zaosu' and its bud sports, but no sequence differences were found. The R2R3 MYB, PyMYB10, can activate expression of genes encoding enzymes of the anthocyanin biosynthetic pathway. A yeast one-hybrid assay showed that PyMYB10 was associated with the -658 to -172bp fragment of the PpUFGT2 promoter, probably via a MYB binding site (MBS) located at -466bp. The PyMYB10 promoter had lower methylation levels in anthocyanin-rich tissues, indicating that the red bud sport of 'Zaosu' pear and the striped pigmentation pattern of 'Zaosu Red' pear are associated with demethylation of the PyMYB10 promoter.
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Affiliation(s)
- Minjie Qian
- Department of Horticulture, The State Agricultural Ministry Key Laboratory of Horticultural Plant Growth, Development & Quality Improvement, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Yongwang Sun
- Department of Horticulture, The State Agricultural Ministry Key Laboratory of Horticultural Plant Growth, Development & Quality Improvement, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Andrew C Allan
- Plant and Food Research, Mount Albert Research Centre, Auckland 1142, New Zealand; School of Biological Sciences, University of Auckland, Auckland 1020, New Zealand
| | - Yuanwen Teng
- Department of Horticulture, The State Agricultural Ministry Key Laboratory of Horticultural Plant Growth, Development & Quality Improvement, Zhejiang University, Hangzhou 310058, Zhejiang Province, China.
| | - Dong Zhang
- Department of Horticulture, The State Agricultural Ministry Key Laboratory of Horticultural Plant Growth, Development & Quality Improvement, Zhejiang University, Hangzhou 310058, Zhejiang Province, China; College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi Province, China.
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Liu X, Zhai R, Feng W, Zhang S, Wang Z, Qiu Z, Zhang J, Ma F, Xu L. Proteomic analysis of 'Zaosu' pear (Pyrus bretschneideri Rehd.) and its early-maturing bud sport. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 224:120-35. [PMID: 24908513 DOI: 10.1016/j.plantsci.2014.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/13/2014] [Accepted: 04/16/2014] [Indexed: 05/09/2023]
Abstract
Maturation of fruits involves a series of physiological, biochemical, and organoleptic changes that eventually make fleshy fruits attractive, palatable, and nutritional. In order to understand the mature mechanism of the early-maturing bud sport of 'Zaosu' pear, we analyzed the differences of proteome expression between the both pears in different mature stages by the methods of a combination of two-dimensional electrophoresis (2-DE) and matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) analysis. Seventy-five differential expressed protein spots (p<0.05) were obtained between 'Zaosu' pear and its early-maturing bud sport, but only sixty-eight were demonstratively identified in the database of NCBI and uniprot. The majority of proteins were linked to metabolism, energy, stress response/defense and cell structure. Additionally, our data confirmed an increase of proteins related to cell-wall modification, oxidative stress and pentose phosphate metabolism and a decrease of proteins related to photosynthesis and glycolysis during the development process of both pears, but all these proteins increased or decreased faster in the early-maturing bud sport. This comparative analysis between both pears showed that these proteins were closely associated with maturation and could provide more detailed characteristics of the maturation process of both pears.
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Affiliation(s)
- Xueting Liu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Rui Zhai
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Wenting Feng
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Shiwei Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Zhigang Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Zonghao Qiu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Junke Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Fengwang Ma
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Lingfei Xu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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