Genetic control of the timing of flowering in woody plants is complex and has yet to be adequately investigated due to their long life-cycle and difficulties in genetic modification.Studies in Populus,one of the best ...Genetic control of the timing of flowering in woody plants is complex and has yet to be adequately investigated due to their long life-cycle and difficulties in genetic modification.Studies in Populus,one of the best woody plant models,have revealed a highly conserved genetic network for flowering timing in annuals.However,traits like continuous flowering cannot be addressed with Populus.Roses and strawberries have relatively small,diploid genomes and feature enormous natural variation.With the development of new genetic populations and genomic tools,roses and strawberries have become good models for studying the molecular mechanisms underpinning the regulation of flowering in woody plants.Here,we review findings on the molecular and genetic factors controlling continuous flowering in roses and woodland strawberries.Natural variation at TFL1 orthologous genes in both roses and strawberries seems be the key plausible factor that regulates continuous flowering.However,recent efforts suggest that a two-recessive-loci model may explain the controlling of continuous flowering in roses.We propose that epigenetic factors,including non-coding RNAs or chromatin-related factors,might also play a role.Insights into the genetic control of flowering time variation in roses should benefit the development of new germplasm for woody crops and shed light on the molecular genetic bases for the production and maintenance of plant biodiversity.展开更多
目的探究“非遗+AI”新模式下湖南土特产包装的创新设计形式,传承和发展非遗文化,提升土特产包装的文化内涵,提高传统包装的科技含量,以适应当代消费者不断提升的审美和消费需求。方法通过问卷调查、深度访谈等方法,分析“非遗+AI”模...目的探究“非遗+AI”新模式下湖南土特产包装的创新设计形式,传承和发展非遗文化,提升土特产包装的文化内涵,提高传统包装的科技含量,以适应当代消费者不断提升的审美和消费需求。方法通过问卷调查、深度访谈等方法,分析“非遗+AI”模式与当代湖南土特产包装的设计现状,了解消费者对包装设计的不同需求,总结设计策略,并基于“非遗+AI”新模式下机器学习和深度学习技术,借助SD(Stable Diffusion,稳定扩散模型)架构下的Lora模型(Low-RankAdaptation of Large Language Models,大语言模型的低秩适用方法),进行踏虎凿花在岳阳王鸽土特产包装设计中的创新应用实践。结果生成出紧跟新时代数字技术,驱动非遗文化活态传承的包装设计图案,从而实现湖南土特产包装的创新设计探索。结论基于“非遗+AI”模式下的SD模型技术,对泸溪踏虎凿花进行创新转化并应用在湖南土特产岳阳王鸽包装设计中,既活化了传统手工艺的表达形式,又创新了土特产的包装表现手法,为其他非遗文化元素和产品包装的有机融合提供了新路径。展开更多
植物物候记录了植物重复生命周期事件的发生时间,是指示全球变化的重要指标。植物物候研究有助于理解生态系统对全球变化的响应,也是模拟陆地生态系统的物质和能量平衡的重要基础。本数据集基于过去70年欧洲物候项目(Pan European Pheno...植物物候记录了植物重复生命周期事件的发生时间,是指示全球变化的重要指标。植物物候研究有助于理解生态系统对全球变化的响应,也是模拟陆地生态系统的物质和能量平衡的重要基础。本数据集基于过去70年欧洲物候项目(Pan European Phenology Project,PEP725)整编的6种代表性木本植物的地面观测物候数据,采用三种考虑春季冷激和积温累积过程的物候模型(Unified、Unichill和时空耦合模型)在大洲尺度上对物候数据进行建模和分析,研制了欧洲地区代表性木本植物格网物候数据集。本数据集包含1951–2021年欧洲地区(34°57′N–72°3′N,25°3′W–40°3′E)6种木本植物的逐年展叶始期和开花始期格网数据,空间分辨率为0.1°,时间分辨率为天。数据集的质量评估表明,欧洲地区各物种展叶始期和开花始期平均误差分别为7.9和7.6天,与其他区域尺度研究中春季物候的模拟误差接近,因此本文格网物候数据具有较高的模拟精度。本数据集旨在更好地表征欧洲地区大洲尺度植物物候的时空格局,为区域其他来源的植物物候数据产品提供有价值的验证参考,亦可为全球变化和陆地生态系统模拟等研究领域提供支撑物候数据。展开更多
基金supported by grants from the Chinese Academy of Sciences under the “Hundreds of Talents” plana grant from the “Yunnan Recruitment Program of Experts in Sciences”
文摘Genetic control of the timing of flowering in woody plants is complex and has yet to be adequately investigated due to their long life-cycle and difficulties in genetic modification.Studies in Populus,one of the best woody plant models,have revealed a highly conserved genetic network for flowering timing in annuals.However,traits like continuous flowering cannot be addressed with Populus.Roses and strawberries have relatively small,diploid genomes and feature enormous natural variation.With the development of new genetic populations and genomic tools,roses and strawberries have become good models for studying the molecular mechanisms underpinning the regulation of flowering in woody plants.Here,we review findings on the molecular and genetic factors controlling continuous flowering in roses and woodland strawberries.Natural variation at TFL1 orthologous genes in both roses and strawberries seems be the key plausible factor that regulates continuous flowering.However,recent efforts suggest that a two-recessive-loci model may explain the controlling of continuous flowering in roses.We propose that epigenetic factors,including non-coding RNAs or chromatin-related factors,might also play a role.Insights into the genetic control of flowering time variation in roses should benefit the development of new germplasm for woody crops and shed light on the molecular genetic bases for the production and maintenance of plant biodiversity.
文摘目的探究“非遗+AI”新模式下湖南土特产包装的创新设计形式,传承和发展非遗文化,提升土特产包装的文化内涵,提高传统包装的科技含量,以适应当代消费者不断提升的审美和消费需求。方法通过问卷调查、深度访谈等方法,分析“非遗+AI”模式与当代湖南土特产包装的设计现状,了解消费者对包装设计的不同需求,总结设计策略,并基于“非遗+AI”新模式下机器学习和深度学习技术,借助SD(Stable Diffusion,稳定扩散模型)架构下的Lora模型(Low-RankAdaptation of Large Language Models,大语言模型的低秩适用方法),进行踏虎凿花在岳阳王鸽土特产包装设计中的创新应用实践。结果生成出紧跟新时代数字技术,驱动非遗文化活态传承的包装设计图案,从而实现湖南土特产包装的创新设计探索。结论基于“非遗+AI”模式下的SD模型技术,对泸溪踏虎凿花进行创新转化并应用在湖南土特产岳阳王鸽包装设计中,既活化了传统手工艺的表达形式,又创新了土特产的包装表现手法,为其他非遗文化元素和产品包装的有机融合提供了新路径。
文摘植物物候记录了植物重复生命周期事件的发生时间,是指示全球变化的重要指标。植物物候研究有助于理解生态系统对全球变化的响应,也是模拟陆地生态系统的物质和能量平衡的重要基础。本数据集基于过去70年欧洲物候项目(Pan European Phenology Project,PEP725)整编的6种代表性木本植物的地面观测物候数据,采用三种考虑春季冷激和积温累积过程的物候模型(Unified、Unichill和时空耦合模型)在大洲尺度上对物候数据进行建模和分析,研制了欧洲地区代表性木本植物格网物候数据集。本数据集包含1951–2021年欧洲地区(34°57′N–72°3′N,25°3′W–40°3′E)6种木本植物的逐年展叶始期和开花始期格网数据,空间分辨率为0.1°,时间分辨率为天。数据集的质量评估表明,欧洲地区各物种展叶始期和开花始期平均误差分别为7.9和7.6天,与其他区域尺度研究中春季物候的模拟误差接近,因此本文格网物候数据具有较高的模拟精度。本数据集旨在更好地表征欧洲地区大洲尺度植物物候的时空格局,为区域其他来源的植物物候数据产品提供有价值的验证参考,亦可为全球变化和陆地生态系统模拟等研究领域提供支撑物候数据。
