Article(id=1277254267647951001, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1000-2561.2026.02.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1760025600000, receivedDateStr=2025-10-10, revisedDate=null, revisedDateStr=null, acceptedDate=1763395200000, acceptedDateStr=2025-11-18, onlineDate=1782450747644, onlineDateStr=2026-06-26, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782450747644, onlineIssueDateStr=2026-06-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782450747643, creator=13701087609, updateTime=1782450747643, updator=13701087609, issue=Issue{id=1277254112370623080, tenantId=1146029695717560320, journalId=1235980609244409860, year='2026', volume='47', issue='2', pageStart='281', pageEnd='551', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1782450710622, creator='13701087609', updateTime=1782451594955, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1277257821632729830, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1277257821632729831, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1277254112370623080, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=291, endPage=301, ext={EN=ArticleExt(id=1277254268843327643, articleId=1277254267647951001, tenantId=1146029695717560320, journalId=1235980609244409860, language=EN, title=Identification and Preliminary Functional Analysis of Dihydroflavonol 4-Reductase (DFR) Gene Family of Pineapple, columnId=1236256430337085821, journalTitle=Chinese Journal of Tropical Crops, columnName=Omics & Biotechnology, runingTitle=null, highlight=null, articleAbstract=

Pineapple (Ananas comosus) ranks as the world's third most important tropical fruit and is a significant economic crop in China's tropical regions. To investigate the role of the dihydroflavonol 4-reductase (DFR) gene family in anthocyanin accumulation in pineapple and provide a theoretical foundation for germplasm improvement, this study identified and preliminary functionally analyzed members of the pineapple DFR gene family. A total of 17 dihydroflavonol 4-reductase genes were identified in the whole genome of pineapple, which were named AcDFR1 to AcDFR17 and distributed unevenly on 10 chromosomes. AcDFRs encoded proteins ranging from 313 to 378 amino acids (aa) in length, with molecular weights between 34.73 and 47.74 kDa and isoelectric points (pI) from 5.10 to 8.9. The secondary structure of AcDFR proteins primarily consisted of α-helices and β-sheets, with α-helix content ranging from 38.73% to 43.07% and β-sheet content from 13.24% to 15.64%. Phylogenetic analysis revealed that the 17 AcDFRs formed four subfamilies. The motif arrangement and number of exons were similar among AcDFRs. The AcDFR genes promoter regions contained multiple cis-acting elements responsive to light, hormones, abiotic stress, growth and development. Real-time quantitative PCR analysis revealed significant expression variations of AcDFRs genes across different pineapple tissues (roots, stems, leaves, flowers, pulp, peel), though most genes exhibited high expression in both pulp and peel. Cloning and identification of AcDFRs revealed sequences largely consistent with predicted sequences. Subcellular localization studies of the AcDFR1 in tobacco leaves via transient expression indicated localization to the cytoplasm and cell membrane. The findings would provide theoretical references for further investigation into the functions of the dihydroflavonol-4-reductase gene family in pineapple and for pineapple quality improvement.

, authors=null, authorsList=Yuanhao DUAN, Shijiao CUI, Xingjiang ZOU, Shipeng FENG, authorCompany=null, correspAuthors=Shipeng FENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1277254269703159967, articleId=1277254267647951001, tenantId=1146029695717560320, journalId=1235980609244409860, language=CN, title=菠萝二氢黄酮醇4-还原酶基因家族鉴定及功能初步分析, columnId=1236256430517440904, journalTitle=热带作物学报, columnName=组学与生物技术, runingTitle=null, highlight=null, articleAbstract=

菠萝(Ananas comosus)是世界第三大热带水果,是我国热区重要的经济作物。为探究二氢黄酮醇4-还原酶(dihydroflavonol 4-reductase, DFR)基因家族在菠萝花青素积累中的作用,为菠萝的种质改良提供理论基础,本研究对菠萝DFR基因家族成员进行鉴定,并初步分析其功能。结果显示:在菠萝全基因组中工鉴定出17个DFR基因(AcDFR1~17),它们不均匀地分布在10条染色体上;AcDFRs编码的氨基酸长度在313~378 aa之间,分子量在34.73~47.74 kDa之间,等电点介于5.10~8.9之间。AcDFRs蛋白二级结构主要包含α-螺旋和β-折叠,α-螺旋的含量在38.73%~43.07%之间,β-折叠在13.24%~15.64%之间。进化分析发现17个AcDFRs分成4个亚族。AcDFRs的motif排列和外显子数量相似。AcDFRs启动子区域含有多个顺式作用元件,可响应光、激素、非生物胁迫和生长发育。实时荧光定量PCR分析结果显示,AcDFRs在菠萝不同组织(根、茎、叶、花、果肉、果皮)中的表达水平差异较大,但大部分AcDFRs在果肉、果皮中均有较高的表达量。AcDFRs的序列与预测序列基本一致,亚细胞定位结果显示其定位于细胞质和细胞膜。本研究结果为进一步探究菠萝二氢黄酮醇4-还原酶家族(AcDFR)基因的功能以及菠萝的品质改良提供理论参考。

, authors=

段元浩(2000—),男,硕士研究生,研究方向:菠萝遗传育种。

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* 冯世鹏(FENG Shipeng),E-mail:
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段元浩(2000—),男,硕士研究生,研究方向:菠萝遗传育种。

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段元浩(2000—),男,硕士研究生,研究方向:菠萝遗传育种。

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菠萝二氢黄酮醇4-还原酶基因家族鉴定及功能初步分析
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段元浩 , 崔世娇 , 邹幸江 , 冯世鹏 *, *
热带作物学报 | 组学与生物技术 2026,47(2): 291-301
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热带作物学报 |组学与生物技术 2026 , 47 (2) : 291 -301
菠萝二氢黄酮醇4-还原酶基因家族鉴定及功能初步分析
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段元浩, 崔世娇, 邹幸江, 冯世鹏*, *
作者信息
  • 海南大学热带农林学院/海南省热带生物资源可持续利用重点实验室,海南海口 570228
通讯作者:
* 冯世鹏(FENG Shipeng),E-mail:
Identification and Preliminary Functional Analysis of Dihydroflavonol 4-Reductase (DFR) Gene Family of Pineapple
Yuanhao DUAN, Shijiao CUI, Xingjiang ZOU, Shipeng FENG
Affiliations
  • School of Tropical Agriculture and Forestry, Hainan University/Key Laboratory of Sustainable Utilization of Tropical Biological Resources, Haikou, Hainan 570228, China
出版时间: 2026-02-25 doi: 10.3969/j.issn.1000-2561.2026.02.002
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菠萝(Ananas comosus)是世界第三大热带水果,是我国热区重要的经济作物。为探究二氢黄酮醇4-还原酶(dihydroflavonol 4-reductase, DFR)基因家族在菠萝花青素积累中的作用,为菠萝的种质改良提供理论基础,本研究对菠萝DFR基因家族成员进行鉴定,并初步分析其功能。结果显示:在菠萝全基因组中工鉴定出17个DFR基因(AcDFR1~17),它们不均匀地分布在10条染色体上;AcDFRs编码的氨基酸长度在313~378 aa之间,分子量在34.73~47.74 kDa之间,等电点介于5.10~8.9之间。AcDFRs蛋白二级结构主要包含α-螺旋和β-折叠,α-螺旋的含量在38.73%~43.07%之间,β-折叠在13.24%~15.64%之间。进化分析发现17个AcDFRs分成4个亚族。AcDFRs的motif排列和外显子数量相似。AcDFRs启动子区域含有多个顺式作用元件,可响应光、激素、非生物胁迫和生长发育。实时荧光定量PCR分析结果显示,AcDFRs在菠萝不同组织(根、茎、叶、花、果肉、果皮)中的表达水平差异较大,但大部分AcDFRs在果肉、果皮中均有较高的表达量。AcDFRs的序列与预测序列基本一致,亚细胞定位结果显示其定位于细胞质和细胞膜。本研究结果为进一步探究菠萝二氢黄酮醇4-还原酶家族(AcDFR)基因的功能以及菠萝的品质改良提供理论参考。

二氢黄酮醇4还原酶  /  菠萝  /  基因家族  /  功能分析

Pineapple (Ananas comosus) ranks as the world's third most important tropical fruit and is a significant economic crop in China's tropical regions. To investigate the role of the dihydroflavonol 4-reductase (DFR) gene family in anthocyanin accumulation in pineapple and provide a theoretical foundation for germplasm improvement, this study identified and preliminary functionally analyzed members of the pineapple DFR gene family. A total of 17 dihydroflavonol 4-reductase genes were identified in the whole genome of pineapple, which were named AcDFR1 to AcDFR17 and distributed unevenly on 10 chromosomes. AcDFRs encoded proteins ranging from 313 to 378 amino acids (aa) in length, with molecular weights between 34.73 and 47.74 kDa and isoelectric points (pI) from 5.10 to 8.9. The secondary structure of AcDFR proteins primarily consisted of α-helices and β-sheets, with α-helix content ranging from 38.73% to 43.07% and β-sheet content from 13.24% to 15.64%. Phylogenetic analysis revealed that the 17 AcDFRs formed four subfamilies. The motif arrangement and number of exons were similar among AcDFRs. The AcDFR genes promoter regions contained multiple cis-acting elements responsive to light, hormones, abiotic stress, growth and development. Real-time quantitative PCR analysis revealed significant expression variations of AcDFRs genes across different pineapple tissues (roots, stems, leaves, flowers, pulp, peel), though most genes exhibited high expression in both pulp and peel. Cloning and identification of AcDFRs revealed sequences largely consistent with predicted sequences. Subcellular localization studies of the AcDFR1 in tobacco leaves via transient expression indicated localization to the cytoplasm and cell membrane. The findings would provide theoretical references for further investigation into the functions of the dihydroflavonol-4-reductase gene family in pineapple and for pineapple quality improvement.

dihydroflavonol 4-reductase  /  pineapple  /  gene family  /  functional analysis
段元浩, 崔世娇, 邹幸江, 冯世鹏. 菠萝二氢黄酮醇4-还原酶基因家族鉴定及功能初步分析. 热带作物学报, 2026 , 47 (2) : 291 -301 . DOI: 10.3969/j.issn.1000-2561.2026.02.002
Yuanhao DUAN, Shijiao CUI, Xingjiang ZOU, Shipeng FENG. Identification and Preliminary Functional Analysis of Dihydroflavonol 4-Reductase (DFR) Gene Family of Pineapple[J]. Chinese Journal of Tropical Crops, 2026 , 47 (2) : 291 -301 . DOI: 10.3969/j.issn.1000-2561.2026.02.002
  • 海南省重点研发计划项目(ZDYF2021XDNY117)
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2026年第47卷第2期
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doi: 10.3969/j.issn.1000-2561.2026.02.002
  • 接收时间:2025-10-10
  • 首发时间:2026-06-26
  • 出版时间:2026-02-25
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  • 收稿日期:2025-10-10
  • 录用日期:2025-11-18
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海南省重点研发计划项目(ZDYF2021XDNY117)
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    海南大学热带农林学院/海南省热带生物资源可持续利用重点实验室,海南海口 570228

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* 冯世鹏(FENG Shipeng),E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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