Article(id=1236337186442892236, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1236337182303113996, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1000-2561.2023.06.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1656864000000, receivedDateStr=2022-07-04, revisedDate=1659801600000, revisedDateStr=2022-08-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1772695355282, onlineDateStr=2026-03-05, pubDate=1687622400000, pubDateStr=2023-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772695355282, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772695355282, creator=13701087609, updateTime=1772695355282, updator=13701087609, issue=Issue{id=1236337182303113996, tenantId=1146029695717560320, journalId=1235980609244409860, year='2023', volume='44', issue='6', pageStart='1083', pageEnd='1305', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772695354295, creator=13701087609, updateTime=1772695447813, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236337574608950114, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1236337182303113996, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236337574613144419, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1236337182303113996, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1091, endPage=1096, ext={EN=ArticleExt(id=1236337187147535360, articleId=1236337186442892236, tenantId=1146029695717560320, journalId=1235980609244409860, language=EN, title=Phenotypic Characteristics and Genetic Analysis of bgl-2, a Bright Green Leaf Mutant Oryza sativa L., columnId=1236256430337085821, journalTitle=Chinese Journal of Tropical Crops, columnName=Omics & Biotechnology, runingTitle=null, highlight=null, articleAbstract=

Leaf color mutants are not only an ideal material for the study of rice functional genomics, but also of great significance for hybrid rice breeding. They can also be used as ornamental rice, committed to building rural leisure agricultural sightseeing spots and promoting rural revitalization. Based on a rice bright green leaf mutant bgl-2 obtained by radiation mutagenesis in the early stage of our research group, this study compared the difference in leaf color between the mutant bgl-2 and the wild-type SIPI, and showed that the mutant bgl-2 showed a bright green color different from the wild-type SIPI. The content of photosynthetic pigments in leaves was determined by 95% ethanol extraction at tillering stage. The results showed that the chlorophyll content of mutant bgl-2 was not significantly different from that of wild-type SIPI. By observing the other plant morphology of mutant bgl-2, it was found that the leaf tips of its flag leaf and the last two leaves were bent, and the flag leaf was significantly shorter than that of wild-type SIPI, and its plant height was also significantly shorter than that of wild-type SIPI. It was found that the 1000 grain weight, grain length and grain width of mutant bgl-2 was significantly smaller than those of wild-type SIPI, but its length width ratio was not significantly different from that of wild-type SIPI. The structure of flag leaf cells of wild-type SIPI and mutant bgl-2 at tillering stage was observed by the transmission electron microscope. The results showed that the cell wall of mutant bgl-2 was significantly thickened, but the thickness of outer membrane of cell membrane was significantly reduced, the inner membrane was almost degraded, and the lamellar structure of thylakoid in chloroplast ultrastructure was looser than that of wild-type SIPI. F1 plants were obtained by hybridization with mutant bgl-2 as female parent and wild-type SIPI as male parent. The investigation found that its leaves were normal green, and the morphology of flag leaf and inverted two leaves were normal, while the F2 population after self pollination isolated normal green leaf seedlings and bright green leaf seedlings with obvious leaf color differences. The segregation ratio of normal leaf color plants and bright green leaf plants in the population was counted, which showed that it conformed to the single gene model of 3 : 1. The above results clarify the phenotype and genetic characteristics of the mutant bgl-2, and provide a theoretical basis for the study of the molecular regulation mechanism of the mutant bgl-2 and promoting its application in rice breeding. The location cloning and functional analysis of BLG-2 gene will be carried out later.

, correspAuthors=Zhizhou HE, 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, authorCompany=null, fund=null, authors=null, authorsList=Qiuyun LIN, Zhenyu XIE, Wei HU, Yujie ZHOU, Kaiyi LONG, Zhizhou HE), CN=ArticleExt(id=1236337187394998294, articleId=1236337186442892236, tenantId=1146029695717560320, journalId=1235980609244409860, language=CN, title=水稻亮绿叶突变体bgl-2的表型特征与遗传分析, columnId=1236256430517440904, journalTitle=热带作物学报, columnName=组学与生物技术, runingTitle=null, highlight=null, articleAbstract=

叶色突变体不仅是水稻功能基因组学研究的理想材料,同时对杂交水稻育种也具有重要意义,还可以作为观赏稻打造乡村休闲农业观光旅游点,促进乡村振兴。本研究基于课题组前期辐射诱变获得的一个水稻亮绿叶突变体bgl-2,比较了突变体bgl-2与野生型SIPI在叶片颜色上的差异,结果表明突变体bgl-2叶片呈现出不同于野生型SIPI的亮绿色。在分蘖期利用95%的乙醇提取测定叶片中的光合色素含量,结果发现突变体bgl-2的叶绿素含量与野生型SIPI相比无显著差异。观察突变体bgl-2其他的植株形态发现,其剑叶和倒二叶叶尖均表现不同于野生型SIPI的弯折形态,且剑叶显著短于野生型SIPI,同时其株高也显著矮于野生型SIPI。收种后拷种发现,突变体bgl-2的千粒重、粒长和粒宽均显著小于野生型SIPI,但其长宽比与野生型SIPI的相比无显著差异。通过透射电镜观察分蘖期野生型SIPI和突变体bgl-2剑叶叶细胞结构,表明突变体bgl-2的细胞壁显著增厚,但细胞膜外膜厚度显著减小,内膜几乎退化,且其叶绿体超微结构中的类囊体的片层结构比野生型SIPI的疏松。通过将突变体bgl-2作为母本,野生型SIPI作为父本,进行杂交获得F1代植株,调查发现其叶片表现正常绿色,且剑叶和倒二叶形态正常,而自交后的F2代群体分离出叶色差异明显的正常绿叶苗和亮绿叶苗。统计群体中植株表型的分离比,卡方测验表明其符合隐性单基因的3∶1遗传分离模式。上述结果明确了突变体bgl-2的表型和遗传特征,为突变体bgl-2的分子调控机制研究和促进其在水稻育种上的应用提供理论依据,后续将进行BGL-2基因的定位克隆和功能分析。

, correspAuthors=贺治洲, authorNote=null, correspAuthorsNote=
* 贺治洲(HEZhizhou),E-mail:
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林秋云(1987—),女,博士,助理研究员,研究方向:水稻分子遗传与育种。

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林秋云(1987—),女,博士,助理研究员,研究方向:水稻分子遗传与育种。

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林秋云(1987—),女,博士,助理研究员,研究方向:水稻分子遗传与育种。

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水稻亮绿叶突变体bgl-2的表型特征与遗传分析
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林秋云 , 谢振宇 , 胡伟 , 周玉杰 , 龙开意 , 贺治洲 *
热带作物学报 | 组学与生物技术 2023,44(6): 1091-1096
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热带作物学报 | 组学与生物技术 2023, 44(6): 1091-1096
水稻亮绿叶突变体bgl-2的表型特征与遗传分析
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林秋云, 谢振宇, 胡伟, 周玉杰, 龙开意, 贺治洲*
作者信息
  • 中国热带农业科学院热带作物品种资源研究所,海南海口 571101
  • 林秋云(1987—),女,博士,助理研究员,研究方向:水稻分子遗传与育种。

通讯作者:

* 贺治洲(HEZhizhou),E-mail:
Phenotypic Characteristics and Genetic Analysis of bgl-2, a Bright Green Leaf Mutant Oryza sativa L.
Qiuyun LIN, Zhenyu XIE, Wei HU, Yujie ZHOU, Kaiyi LONG, Zhizhou HE*
Affiliations
  • Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
出版时间: 2023-06-25 doi: 10.3969/j.issn.1000-2561.2023.06.002
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叶色突变体不仅是水稻功能基因组学研究的理想材料,同时对杂交水稻育种也具有重要意义,还可以作为观赏稻打造乡村休闲农业观光旅游点,促进乡村振兴。本研究基于课题组前期辐射诱变获得的一个水稻亮绿叶突变体bgl-2,比较了突变体bgl-2与野生型SIPI在叶片颜色上的差异,结果表明突变体bgl-2叶片呈现出不同于野生型SIPI的亮绿色。在分蘖期利用95%的乙醇提取测定叶片中的光合色素含量,结果发现突变体bgl-2的叶绿素含量与野生型SIPI相比无显著差异。观察突变体bgl-2其他的植株形态发现,其剑叶和倒二叶叶尖均表现不同于野生型SIPI的弯折形态,且剑叶显著短于野生型SIPI,同时其株高也显著矮于野生型SIPI。收种后拷种发现,突变体bgl-2的千粒重、粒长和粒宽均显著小于野生型SIPI,但其长宽比与野生型SIPI的相比无显著差异。通过透射电镜观察分蘖期野生型SIPI和突变体bgl-2剑叶叶细胞结构,表明突变体bgl-2的细胞壁显著增厚,但细胞膜外膜厚度显著减小,内膜几乎退化,且其叶绿体超微结构中的类囊体的片层结构比野生型SIPI的疏松。通过将突变体bgl-2作为母本,野生型SIPI作为父本,进行杂交获得F1代植株,调查发现其叶片表现正常绿色,且剑叶和倒二叶形态正常,而自交后的F2代群体分离出叶色差异明显的正常绿叶苗和亮绿叶苗。统计群体中植株表型的分离比,卡方测验表明其符合隐性单基因的3∶1遗传分离模式。上述结果明确了突变体bgl-2的表型和遗传特征,为突变体bgl-2的分子调控机制研究和促进其在水稻育种上的应用提供理论依据,后续将进行BGL-2基因的定位克隆和功能分析。

水稻  /  叶片亮绿  /  突变体  /  bgl-2  /  表型  /  遗传

Leaf color mutants are not only an ideal material for the study of rice functional genomics, but also of great significance for hybrid rice breeding. They can also be used as ornamental rice, committed to building rural leisure agricultural sightseeing spots and promoting rural revitalization. Based on a rice bright green leaf mutant bgl-2 obtained by radiation mutagenesis in the early stage of our research group, this study compared the difference in leaf color between the mutant bgl-2 and the wild-type SIPI, and showed that the mutant bgl-2 showed a bright green color different from the wild-type SIPI. The content of photosynthetic pigments in leaves was determined by 95% ethanol extraction at tillering stage. The results showed that the chlorophyll content of mutant bgl-2 was not significantly different from that of wild-type SIPI. By observing the other plant morphology of mutant bgl-2, it was found that the leaf tips of its flag leaf and the last two leaves were bent, and the flag leaf was significantly shorter than that of wild-type SIPI, and its plant height was also significantly shorter than that of wild-type SIPI. It was found that the 1000 grain weight, grain length and grain width of mutant bgl-2 was significantly smaller than those of wild-type SIPI, but its length width ratio was not significantly different from that of wild-type SIPI. The structure of flag leaf cells of wild-type SIPI and mutant bgl-2 at tillering stage was observed by the transmission electron microscope. The results showed that the cell wall of mutant bgl-2 was significantly thickened, but the thickness of outer membrane of cell membrane was significantly reduced, the inner membrane was almost degraded, and the lamellar structure of thylakoid in chloroplast ultrastructure was looser than that of wild-type SIPI. F1 plants were obtained by hybridization with mutant bgl-2 as female parent and wild-type SIPI as male parent. The investigation found that its leaves were normal green, and the morphology of flag leaf and inverted two leaves were normal, while the F2 population after self pollination isolated normal green leaf seedlings and bright green leaf seedlings with obvious leaf color differences. The segregation ratio of normal leaf color plants and bright green leaf plants in the population was counted, which showed that it conformed to the single gene model of 3 : 1. The above results clarify the phenotype and genetic characteristics of the mutant bgl-2, and provide a theoretical basis for the study of the molecular regulation mechanism of the mutant bgl-2 and promoting its application in rice breeding. The location cloning and functional analysis of BLG-2 gene will be carried out later.

rice  /  bright green leaf  /  mutant  /  bgl-2  /  phenotype  /  inheritance
林秋云, 谢振宇, 胡伟, 周玉杰, 龙开意, 贺治洲. 水稻亮绿叶突变体bgl-2的表型特征与遗传分析. 热带作物学报, 2023 , 44 (6) : 1091 -1096 . DOI: 10.3969/j.issn.1000-2561.2023.06.002
Qiuyun LIN, Zhenyu XIE, Wei HU, Yujie ZHOU, Kaiyi LONG, Zhizhou HE. Phenotypic Characteristics and Genetic Analysis of bgl-2, a Bright Green Leaf Mutant Oryza sativa L.[J]. Chinese Journal of Tropical Crops, 2023 , 44 (6) : 1091 -1096 . DOI: 10.3969/j.issn.1000-2561.2023.06.002
  • 海南省自然科学基金高层次人才项目(322RC775)
  • 中国热带农业科学院基本科研业务费专项资金(1630032019037)
  • 海南省自然科学基金青年基金项目(321QN323)
2023年第44卷第6期
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doi: 10.3969/j.issn.1000-2561.2023.06.002
  • 接收时间:2022-07-04
  • 首发时间:2026-03-05
  • 出版时间:2023-06-25
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  • 收稿日期:2022-07-04
  • 修回日期:2022-08-07
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海南省自然科学基金高层次人才项目(322RC775)
中国热带农业科学院基本科研业务费专项资金(1630032019037)
海南省自然科学基金青年基金项目(321QN323)
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    中国热带农业科学院热带作物品种资源研究所,海南海口 571101

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* 贺治洲(HEZhizhou),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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