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Identification and effective regulation of scarb1 gene involved in pigmentation change in autotetraploid Carassius auratus

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Zoological Research 2024年第2期45卷 381-397页

作者： Xi-Dan Xu Yue Zhou Chong-Qing Wang Xu Huang Kun Zhang Xiao-Wei Xu Li-Wen He Xin-Yue Zhang Xin-Zhu Fu Ming Ma Qin-Bo Qin Shao-Jun Liu State Key Laboratory of Developmental Biology of Freshwater Fish Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education MinistryCollege of Life SciencesHunan Normal UniversityChangshaHunan 410081China Nansha-South China Agricultural University Fishery Research Institute GuangzhouGuangdong 511458China Hunan Yuelu Mountain Science and Technology Co.Ltd.for Aquatic Breeding ChangshaHunan 410081China College of Chemistry and Chemical Engineering Hunan Normal UniversityChangshaHunan 410081China

The autotetraploid Carassius auratus(4nRR,4n=200,RRRR)is derived from whole-genome duplication of Carassius auratus red var.(RCC,2n=100,RR).In the current study,we demonstrated that chromatophores and pigment changes directly caused the coloration and variation of 4nRR skin(red in RCC,brownish-yellow in4nRR).To further explore the molecular mechanisms underlying coloration formation and variation in 4nRR,we performed transcriptome profiling and molecular functional verification in RCC and *** revealed that scarb1,associated with carotenoid metabolism,underwent significant down-regulation in *** editing of this candidate pigment gene provided clear evidence of its significant role in RCC ***,we identified four divergent scarb1 homeologs in 4nRR:two original scarb1 homeologs from RCC and two duplicated ***,three of these homeologs possessed two highly conserved alleles,exhibiting biased and allelespecific expression in the ***,after precise editing of both the original and duplicated scarb1homeologs and/or alleles,4nRR individuals,whether singly or multiply mutated,displayed a transition from brownishyellow skin to a cyan-gray ***,the proportional areas of the cyan-gray regions displayed a gene-dose *** findings illustrate the subfunctionalization of duplicated scarb1,with all scarb1genes synergistically and equally contributing to the pigmentation of *** is the first report concerning the functional differentiation of duplicated homeologs in an autopolyploidfish,substantiallyenrichingour understanding of coloration formation and change within this group of organisms.

关键词： Autopolyploidization Coloration change scarb1 functional differentiation Genetic changes

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Genome-wide analysis indicates diverse physiological roles of the turnip (Brassica rapa var. rapa) oligopeptide transporters gene family

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Plant Diversity 2018年第2期40卷 57-67页

作者： Yanan Pu Danni Yang Xin Yin Qiuli Wang Qian Chen Yunqiang Yang Yongping Yang Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany Chinese Academy of Science Kunming 650204 China Plant Germplasm and Genomics Center Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China Institute of Tibetan Plateau Research at Kunming Kunming Institute of Botany Chinese Academy of Sdences Kunming 650201 China University of Chinese Academy of Sciences Beijing 100049 China Yunnan University Kunming 650091 China

Oligopeptide transporters(OPTs) encode integral membrane-localized proteins and have a broad range of substrate transport capabilities. Here, 28 BrrOPT genes were identified in the turnip. Phylogenetic analyses revealed two well-supported clades in the OPT family, containing 15 BrrOPTs and 13 *** exon/intron structure of OPT clade are conserved but the yellow stripe-like(YSL) clade was *** exon/intron of the YSL clade possesses structural differences, whereas the YSL class motifs structure are conserved. The OPT genes are distributed unevenly among the chromosomes of the turnip *** and chromosomal distribution analyses revealed that the expansion of the OPT gene family is mainly attributable to segmental duplication. For the expression profiles at different developmental stages, a comprehensive analysis provided insights into the possible functional divergence among members of the paralog OPT gene family. Different expression levels under a variety of ion deficiencies also indicated that the OPT family underwent functional divergence during long-term ***. BrrOPT8.1, BrrYSL1.2, BrrYSL1.3, BrrYSL6 and BrrYSL9 responded to Fe(Ⅱ) treatments and BrrYSL7 responded to calcium treatments, BrrYSL6 responded to multiple treatments in root, suggesting that turnip OPTs may be involved in mediating cross-talk among different ion deficiencies. Our data provide important information for further functional dissection of BrrOPTs, especially in transporting metal ions and nutrient deficiency stress adaptation.

关键词： BrrOPTs Segmental duplication functional differentiation Turnip

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刑法教义学科学性与实践性的功能分化

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刑事法学 2022年第8期

作者：陈璇

刑法教义学的科学性和实践性并非总是并行不悖，二者可能发生冲突。回归纯粹的实践技艺并非当代刑法教义学应该选择的道路。对刑法教义学科学性的坚守是现代社会的必然要求，并具有实现的可能性。刑法教义学体系的建构应当采取自下而上... 详细信息

刑法教义学的科学性和实践性并非总是并行不悖，二者可能发生冲突。回归纯粹的实践技艺并非当代刑法教义学应该选择的道路。对刑法教义学科学性的坚守是现代社会的必然要求，并具有实现的可能性。刑法教义学体系的建构应当采取自下而上的思路，以保证体系在复杂多变的社会生活面前保持足够的开放性和应变能力，但这一思路也带来了刑法教义学知识“堆砌化”“补丁化”的危险。正如社会现实的复杂化必然会促使社会系统分化一样，在刑法教义学肩负的任务日益繁重和复杂的时代背景下，刑法教义学内部也有必要进行功能分化：一部分研究应奉行自下而上的问题思考方式，着眼于产出具有实效的教义学知识；另一部分研究则应专司方法论的监督之职，从价值基础的一致性、形式逻辑的融贯性和事实结构的符合性三方面对教义学知识进行科学性的检测和反思。

关键词：刑法教义学体系科学性论题学功能分化 Criminal Law Dogmatics System Scientificity Topik functional differentiation

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部门宪法划分的双重基础

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宪法学、行政法学 2023年第10期

作者：邓翔宇

我国现有对部门宪法划分的探讨或拘泥于宪法文本架构，或照搬社会学理论，存在不同程度的不足，从而导致了部门宪法学理建构的困境。准确界定部门宪法中“部门”的概念有助于讨论部门宪法的划分。部门宪法划分的社会基础是社会系统。作... 详细信息

我国现有对部门宪法划分的探讨或拘泥于宪法文本架构，或照搬社会学理论，存在不同程度的不足，从而导致了部门宪法学理建构的困境。准确界定部门宪法中“部门”的概念有助于讨论部门宪法的划分。部门宪法划分的社会基础是社会系统。作为社会子系统的“部门”由“行为—互动”模式和“沟通—关联”模式形成，而社会分工、吸引子、社会功能和符码则为社会系统提供划分标准。部门宪法划分的规范基础是宪法文本。划分部门宪法应以部门宪法释义学为理论基础，观察宪法从国家向社会层面渗透的历史进程。社会子系统之间的冲突、社会子系统的自我再制和宪治化趋势共同导致社会子系统被宪法规制的需要。应以宪法基本国策引导部门宪法的划分。当前我国需要将宪法领域划分为政治宪法、经济宪法、文化宪法、环境宪法、教育宪法、科技宪法等6个部门宪法。

关键词：部门宪法社会子系统功能分化形成划分 Sectoral Constitution Social Subsystem functional differentiation Formation Division

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Comparative Genomic Analysis of Boron Transport Gene Family in Arabidopsis and Five Crops

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Agricultural Biotechnology 2021年第3期10卷 145-153页

作者： Quan GAN Fengshun SONG Bin TENG Cuixiang LIN Dahu NI Rice Research Institute Anhui Academy of Agricultural SciencesHefei 230001China

Nutrient boron(B)is important for crop *** absorption and transport of B ions are regulated by the B transport(BOR)gene *** some members of the BOR gene family have been heavily researched,to the best of our knowledge,no comprehensive research on the structural,evolutionary and functional relationships among crops has been *** this study,comparative genomic research of the BOR gene family was performed in five crops,40 BOR genes were identified,and analyses of phylogenetics,structure,conserved motifs,and transmembrane topology were *** genes had highly similar physicochemical properties,structure and motif *** elements in the C-terminus and functional differences were also found among the *** addition,microsynteny and evolutionary analysis suggested that large-scale replication events and purifying selection played essential roles during the OsBOR gene evolutionary process in ***,expression pattern of OsBORs were also *** research provides comprehensive and detailed information on BOR genes in five crops and establishes a foundation for further functional exploration of these genes in B metabolic pathways.

关键词： Boron transport functional differentiation Crops Genome-wide analysis

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