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Rosaceae phylogenomic studies provide insights into the evolution of new genes

Horticultural Plant Journal 2025年第1期11卷 389-405页

作者： Lan Jiang Xiaoxu Li Kun Lyu Han Wang Zhiyuan Li Wang Qi Lin Zhang Yunpeng Cao Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation(Wannan Medical College) Central LaboratoryYijishan Hospital of Wannan Medical CollegeWuhuAnhui 241000China Beijing Life Science Academy Beijing 102209China CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubei 430074China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesWuhanHubei 430074China Key Laboratory for Tobacco Gene Resources Tobacco Research InstituteChinese Academy of Agricultural SciencesQingdaoShangdong 266000China school of Life Sciences Anhui Agricultural UniversityHefeiAnhui 230036China School of Basic Medical Sciences Hubei University of Chinese MedicineWuhanHubei 430065China

Rosa banksiae,known as Lady Banks'rose,is a perennial ornamental crop and a versatile herb in traditional Chinese *** the lack of genomic resources,we assembled a Hi Fi and Nanopore sequencing-derived 458.58 Mb gap-free telomere-to-telomere high-quality *** genome with a scaffold N50=63.90 *** genome of *** exhibited no lineage-specific whole-genome duplication compared with other *** phylogenomic analysis of 13 Rosaceae and Arabidopsis through a comparative genomics study showed that numerous gene families were lineage-specific both before and after the diversification of *** of these genes are candidates for new genes that have evolved from parental genes through fusion *** genes are divided into three types:Type-I and Type-II genes contain two parental genes that are generated by duplication,distributed in the same and different regions of the genome,respectively;and Type-III can only be detected in one parental ***,Type-I genes are found to have more relaxed selection pressure and lower Ks values than Type-II,indicating that these newly evolved Type-I genes may play important roles in driving phenotypic *** analysis exhibited that newly formed fusion genes can regulate the phenotype traits of plant growth and development,suggesting the functional significance of these *** study identifies new fusion genes that could be responsible for phenotype evolution and provides information on the evolutionary history of recently diverged species in the Rosa *** data represents the major progress in understanding the new fusion genes evolution pattern of Rosaceae and provides an invaluable resource for phylogenomic studies in plants.

关键词： Rosa banksiae Gap-free genome Rosaceae Phenotype evolutionary patterns

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Genome-wide identification,molecular evolution,and functional characterization of fructokinase gene family in apple reveal its role in improving salinity tolerance

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Journal of Integrative Agriculture 2024年第11期23卷 3723-3736页

作者： Jing Su Lingcheng Zhu Pingxing Ao Jianhui Shao Chunhua Ma College of Landscape and Horticulture Yunnan Agricultural UniversityKunming650201YunnanChina State Key Laboratory of Crop Stress Biology for Arid Areas College of HorticultureShaanxi Key Laboratory of AppleNorthwest A&F UniversityYangling712100ShaanxiChina College of Plant protection Yunnan Agricultural UniversityKunming650201YunnanChina

Fructokinase(FRK)is a regulator of fructose signaling in plants and gateway proteins that catalyze the initial step in fructose metabolism through *** previous study demonstrated that MdFRK2 protein exhibit not only high affinity for fructose,but also high enzymatic activity due to ***,genome-wide identification of the MdFRK gene family and their evolutionary dynamics in apple are yet to be reported.A systematic genome-wide analysis in this study identified a total of nine MdFRK gene members,which could phylogenetically be clustered into seven *** location and synteny analysis of MdFRKs revealed that their expansion in the apple genome is primarily driven by tandem and segmental duplication *** expression patterns of MdFRKs were observed in four source-sink tissues and at five different apple fruit developmental stages,which suggested their potential crucial roles in the apple fruit development and sugar *** transcription-quantitative PCR(RT-qPCR)identified candidate NaCl or drought stress responsive MdFRKs,and transgenic apple plants overexpressing MdFRK2 exhibited considerably enhanced salinity *** results will be useful for understanding the functions of MdFRKs in the regulation of apple fruit development and salt stress response.

关键词： apple fructokinase evolutionary patterns MdFRK2 salinity tolerance

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中国大学生学习观的变与不变

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高等教育 2024年第2期

作者：史秋衡曹凡

学习观是我国大学生学情规律形成的重要基石，决定着学习方式的导向，在整个学习过程中扮演着价值支持和动力驱动的杠杆角色。通过对“国家大学生学情调查”连续8年正常数据与新冠肺炎疫情3年非常数据的分析，发现了我国大学生学习观的... 详细信息

学习观是我国大学生学情规律形成的重要基石，决定着学习方式的导向，在整个学习过程中扮演着价值支持和动力驱动的杠杆角色。通过对“国家大学生学情调查”连续8年正常数据与新冠肺炎疫情3年非常数据的分析，发现了我国大学生学习观的方向性、群体性和结构性规律。基于此，为引导学生学习观的正确发展，从信念坚持、实践转型及特征运用三个角度提出对策建议，以期提高人才培养质量，加快推进高等教育高质量发展。

关键词：大学生学情学习观作用方式演变规律 college students' learning situation view of learning modes of operation evolutionary patterns

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