Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays

In this study, an Hsp70 gene was isolated from maize and was designated as ZmERD2 (Early Responsive to Dehydration 2). The full cDNA sequence of ZmERD2 was 2375 bp. It includes a 1949 bp open reading frame (ORF) encoding 649 amino acids. The calculated molecular mass was 71.163 kDa. The protein enco...

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Main Authors: Jinhui Song, Qiaoyun Weng, Hailian Ma, Jincheng Yuan, Lingyun Wang, Yinghui Liu
Format: Article
Language:English
Published: Taylor & Francis Group 2016-03-01
Series:Biotechnology & Biotechnological Equipment
Subjects:
Online Access:http://dx.doi.org/10.1080/13102818.2015.1131625
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author Jinhui Song
Qiaoyun Weng
Hailian Ma
Jincheng Yuan
Lingyun Wang
Yinghui Liu
author_facet Jinhui Song
Qiaoyun Weng
Hailian Ma
Jincheng Yuan
Lingyun Wang
Yinghui Liu
author_sort Jinhui Song
collection DOAJ
description In this study, an Hsp70 gene was isolated from maize and was designated as ZmERD2 (Early Responsive to Dehydration 2). The full cDNA sequence of ZmERD2 was 2375 bp. It includes a 1949 bp open reading frame (ORF) encoding 649 amino acids. The calculated molecular mass was 71.163 kDa. The protein encoded by ZmERD2 contains an Hsp70 conservative structure domain, three typical Hsp70 family signature sequences and a cytosolic Hsp70-specific motif, which belongs to the Hsp70 family. Phylogenetic tree analysis suggested that ZmEDR2 shares high similarity (92%–95%) with Hsp70 of other plants, such as Arabidopsis thaliana (NP 195870), Triticum urartu (EMS52605), Aegilops tauschii (EMT07406) and Nicotiana tabacum (AAR17080), and was clustered together with T. urartu and A. tauschii. The promoter of ZmERD2, which was located at about 2.2 kb upstream of ZmERD2, was cloned and was predicted to contain important regulatory elements, including TATA-box, CAAT-box and drought-, heat-, cold-, salicylic acid- and methyl jasmonate-responsive elements. Analyzed by quantitative real-time polymerase chain reaction, the expression of ZmERD2 in maize was induced by heat, high-salt, cold, polyethylene glycol, heat stress and dehydration treatments, but not by abscisic acid. The expression of ZmEDR2 was quickly induced at 42 °C and reached its peak after 1 h of heat stress, with an expression of 40-fold above the control level. These results suggested that ZmERD2 might be a stress-related gene in maize.
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spelling doaj.art-ba804a60b7d84606b09d03ce45ff4b712022-12-22T03:19:50ZengTaylor & Francis GroupBiotechnology & Biotechnological Equipment1310-28181314-35302016-03-0130221922610.1080/13102818.2015.11316251131625Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea maysJinhui Song0Qiaoyun Weng1Hailian Ma2Jincheng Yuan3Lingyun Wang4Yinghui Liu5College of Agriculture and Forestry, Hebei North UniversityCollege of Agriculture and Forestry, Hebei North UniversityCollege of Agriculture and Forestry, Hebei North UniversityCollege of Agriculture and Forestry, Hebei North UniversityCollege of Agriculture and Forestry, Hebei North UniversityCollege of Agriculture and Forestry, Hebei North UniversityIn this study, an Hsp70 gene was isolated from maize and was designated as ZmERD2 (Early Responsive to Dehydration 2). The full cDNA sequence of ZmERD2 was 2375 bp. It includes a 1949 bp open reading frame (ORF) encoding 649 amino acids. The calculated molecular mass was 71.163 kDa. The protein encoded by ZmERD2 contains an Hsp70 conservative structure domain, three typical Hsp70 family signature sequences and a cytosolic Hsp70-specific motif, which belongs to the Hsp70 family. Phylogenetic tree analysis suggested that ZmEDR2 shares high similarity (92%–95%) with Hsp70 of other plants, such as Arabidopsis thaliana (NP 195870), Triticum urartu (EMS52605), Aegilops tauschii (EMT07406) and Nicotiana tabacum (AAR17080), and was clustered together with T. urartu and A. tauschii. The promoter of ZmERD2, which was located at about 2.2 kb upstream of ZmERD2, was cloned and was predicted to contain important regulatory elements, including TATA-box, CAAT-box and drought-, heat-, cold-, salicylic acid- and methyl jasmonate-responsive elements. Analyzed by quantitative real-time polymerase chain reaction, the expression of ZmERD2 in maize was induced by heat, high-salt, cold, polyethylene glycol, heat stress and dehydration treatments, but not by abscisic acid. The expression of ZmEDR2 was quickly induced at 42 °C and reached its peak after 1 h of heat stress, with an expression of 40-fold above the control level. These results suggested that ZmERD2 might be a stress-related gene in maize.http://dx.doi.org/10.1080/13102818.2015.1131625Maize (Zea mays L.)heat shock proteinZmERD2abiotic stresses
spellingShingle Jinhui Song
Qiaoyun Weng
Hailian Ma
Jincheng Yuan
Lingyun Wang
Yinghui Liu
Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
Biotechnology & Biotechnological Equipment
Maize (Zea mays L.)
heat shock protein
ZmERD2
abiotic stresses
title Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
title_full Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
title_fullStr Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
title_full_unstemmed Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
title_short Cloning and expression analysis of the Hsp70 gene ZmERD2 in Zea mays
title_sort cloning and expression analysis of the hsp70 gene zmerd2 in zea mays
topic Maize (Zea mays L.)
heat shock protein
ZmERD2
abiotic stresses
url http://dx.doi.org/10.1080/13102818.2015.1131625
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