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Genome-wide characterization of mate family members in Cucumis melo *** their expression profiles in response to abiotic and biotic stress

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Horticultural Plant Journal 2022年第4期8卷 474-488页

作者： Shuoshuo Wang Kun Chen Jiayu Zhang Jianquan Wang Haosen Li Xiaoyu Yang Qinghua Shi College of Horticulture Science and Engineering Shandong Agricultural UniversityTai’anShandong 271018China State Key Laboratory of Crop Biology Shandong Agricultural UniversityTai’anShandong 271018China Institute of Vegetables Shangqiu Academy of Agriculture and Forestry SciencesShangqiuHenan 476002China

The multidrug and toxic compound extrusion(mate) family plays pivotal roles in the detoxification process in plants, while no information has been provided for this gene family in melon(Cucumis melo L.) thus far, limiting our understanding of its functions in melon acclimation to stressful environments. In this study, a total of 39 mates(Cmmate1–Cmmate39) were observed in the melon genome;these were unevenly distributed in all chromosomes, with the most on Chromosome 1. Based on their orthologous relationship with those from Arabidopsis, rice, and sorghum, melon mates were clustered into three subfamilies of Clades Ⅰ, Ⅱ, and Ⅲ, wherein 23, 9, and 7 members were included, *** exon number was observed in Cmmates, and the most were harbored by Cmmate8. Gene ontology(GO) term and cis-regulatory element(CRE) analyses pointed to the potential roles of Cmmates in both the regulation of melon development and acclimation to various abiotic and biotic stressors. The RNA-seq and qRT-PCR(quantitative real-time PCR) results demonstrated that under normal growth conditions, Cmmates were expressed in a tissue-and development-specific manner, while their abundance apparently varied in a stress-dependent manner when melon plants were exposed to unfavorable environmental conditions. Altogether, these observations could expand our knowledge about the plant mate family and benefit functional genomics analysis for Cmmates in the future.

关键词： Melon mate Orthologous relationship GO term Expression Stress

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mate assessment behavior is correlated to learning ability in female threespine sticklebacks

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Current Zoology 2019年第3期65卷 295-304页

作者： Taylor L.RYSTROM Theo C.M.BAKKER Ingolf P.RICK Department of Behavioural Biology University of Munster Badestrasse 13 Munster 48149 Germany Institute for Evolutionary Biology and Ecology University of Bonn An der Immenburg 153121 Bonn Germany

In many species, males signal quality with elaborate traits, but females often show inter-individual variation in pref ere nee for these traits. Choosi ng a mate requires multiple cog nitive steps;therefore, cog nitive style (how an in dividual processes information) likely in fluences the perception of sexual signals and ability to choose a high-quality mate. An important component of cognitive style is flexibility;cognitively flexible individuals are more perceptive to shifts in cues. We hypothesized that cognitively flexible individuals would acquire more information about potential mates, better discern between two quality-signaling traits, and thus be more discriminatory. Here, we show that mate assessment is correlated to other cognitive traits. Although we did not detect an effect of cogn itive style on mate pref ere nee or discriminatio n, we found that female threespi ne sticklebacks Gasterosteus aculeatus that spent more time assessing potential mates (more responsive) in a dichotomous mate choice task reached both the initial and reversal learning criterion in a spatial learning task with fewer errors. However, these highly responsive females made more consecutive mistakes immediately at the beginning of the reversal phase, suggest!ng that they did not quickly adapt to the en vironmental cha nge but in stead rapidly formed strict routi nes duri ng the learning task that were eventually reversible after repeated errors. Furthermore, we found evidenee for condition-dependent mate pref ere nee, with larger females preferring the high-quality male. These are among the first results that illustrate how cog nitive traits might in flue nee mate choice, which has implicati ons for the st re ngth and di recti on of sexual selection.

关键词： cognition cognitive flexibility choosiness computer animation mate choice sexual selection

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Sex differences in cognition and their relationship to male mate choice

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Current Zoology 2019年第3期65卷 285-293页

作者： Jason KEAGY Ross MINTER Robin M.TINGHITEELLA Department of Animal Biology School of Integrative Biology University of Illinois at Urbana-Champaign Urbana IL USA Linda Crnic Institute for Down Syndrome University of Colorado School of Medicine Aurora CO USA Department of Biological Sciences University of DenverDenverCOUSA

Male cognition has gained recognition as an important potential player in sexual selection. A number of studies have found positive correlations between male sexual signals and cognitive performance an d/or female pref ere nces for males with better cog nitive performance, although other studies have not fou nd these relati on ships. Sex roles can differ dramatically, and sex differen ces in selection on cog nition likely follow from the different tasks associated with these sex roles. Here, using threespine stickleback Gasterosteus aculeatus, a species with clearly diverge nt sex roles and mutual mate choice, we focus on the cognitive trait inhibitory control because males must differentially respond to reproductive females versus other sticklebacks while defending territories and refrain from eating eggs and fry while performing paternal care. We presented fish with a detour task four times over a period of 7 days, allowing us to assess initial inhibitory control and improvement over time. We ask 1) whether there are sex differences in inhibitory control and 2) whether male mate choice is associated with female inhibitory control. Although males outperformed females on three different measures of detour task performance across four trials, these differences were largely explained by males being less neophobic than females. Females took more trials to successfully solve the detour task, even after accounting for sex differences in neophobia. Female cognitive abilities, however, were unrelated to the vigor with which males courted them. The equivocal results regarding sex differences in cognitive ability suggest further study given the very different selection pressures each sex experiences.

关键词： cognition detour task mutual mate choice sexual selection threespine stickleback

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Demonstrating mate choice copying in spiders requires further research

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Current Zoology 2020年第2期66卷 215-216页

作者： R.Tucker GILMAN Kasey FOWLER-FINN Eileen A.HEBETS School of Earth and Environmental Sciences The University of ManchesterManchesterUK Department of Biology Saint Louis UniversitySt.LouisUSA School of Biological Sciences University of Nebraska-LincolnLincolnNEUSA

mate choice copying-when individuals learn to prefer mates or mate types that have been chosen by others-can influence trait evo-lution and speciation(Varela et al.2018;Dion et al.2019).Most examples of mate choice copying are from fish,birds,and mammals including humans(Varela et al.2018).However,2 invertebrate examples-fruit flies and wolf spiders-have been used to argue that the phenomenon may be phylogenetically widespread,and perhaps the rule rather than the exception in nature(Varela et al.2018).Here,we revisit the evidence for mate choice copying in wolf spiders(Fowler-Fimn et al.2015)in light of new data(Gilman et al.2018).Then,we discuss why mate choice copying is a phenomenon that is likely to occur in wolf spiders,and why this deserves attention.

关键词： invertebrates mate choice copying Schizocosa sexual selection speciation spiders

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基于mate的电力系统分网多速率电磁暂态并行仿真方法

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高电压技术 2019年第6期45卷 1857-1865页

作者：韩佶董毅峰苗世洪刘彦良刘子文华中科技大学电气与电子工程学院强电磁工程与新技术国家重点实验室武汉430074 电力安全与高效湖北省重点实验室武汉430074 中国电力科学研究院电网安全与节能国家重点实验室北京100192 济宁供电公司济宁272000

针对电力系统电磁暂态仿真效率低的问题,提出一种基于mate的分网多速率电磁暂态并行仿真方法,该方法支持2种及2种以上仿真步长。提出了主同步时刻、子同步时刻和非同步时刻等概念以描述不同时刻的求解过程。在非同步时刻,通过大步长和... 详细信息

针对电力系统电磁暂态仿真效率低的问题,提出一种基于mate的分网多速率电磁暂态并行仿真方法,该方法支持2种及2种以上仿真步长。提出了主同步时刻、子同步时刻和非同步时刻等概念以描述不同时刻的求解过程。在非同步时刻,通过大步长和中步长子网戴维南电势插值结果计算连接线电流,完成小步长子网的计算;在子同步时刻,利用大步长子网戴维南电势插值结果计算连接线电流,并综合考虑中步长内连接线电流的累积效应,完成中步长和小步长子网的计算;在主同步时刻,通过各子网戴维南等值计算连接线电流,并综合考虑大步长内连接线电流的累积效应,得到全网络的仿真结果。仿真算例表明,该方法可以根据所划分子网的特性选择合适的仿真步长,能在基本不损失仿真精度的前提下大大提高仿真效率,对实现大规模电力系统的实时仿真具有重要理论和实践意义。

关键词：多速率并行电磁暂态仿真同步 mate

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荞麦mate的克隆及表达分析

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中国农业科学 2018年第11期51卷 2038-2048页

作者：常雪玲张宗文李艳琴高佳山西大学生物技术研究所中国农业科学院作物科学研究所国际生物多样性中心中国办事处

【目的】多药物和有毒化合物外排家族(multidrug and toxic compound extrusion family,mate)是生物中5类解毒输出转运蛋白家族之一。作为植物中最大的转运蛋白家族之一,其主要功能为次生代谢物的积累、重金属转运和激素信号转导。通过... 详细信息

【目的】多药物和有毒化合物外排家族(multidrug and toxic compound extrusion family,mate)是生物中5类解毒输出转运蛋白家族之一。作为植物中最大的转运蛋白家族之一,其主要功能为次生代谢物的积累、重金属转运和激素信号转导。通过分析荞麦mate的克隆与表达为mate型转运蛋白成员在荞麦中的功能研究提供基础。【方法】通过3′和5′RACE克隆获得荞麦mate全长c DNA序列;利用在线网上工具预测mate蛋白的分子量、等电点、二级结构及跨膜结构域;选取MEGA软件中的NJ法构建荞麦mate蛋白的系统发育树以初步推测mate蛋白在荞麦中的作用方式及功能;荧光定量试验测定mate在荞麦不同组织及不同发育阶段种子中的相对表达量,并与原花青素含量测定结合进一步验证mate转运蛋白在荞麦中的功能。【结果】通过RACE克隆获得2条荞麦mate全长c DNA,分别命名为Fett12(Gen Bank Accession ***515589)和Femate3(Gen Bank Accession ***515590)。通过Ex PASy中的protparam在线分析得到Fett12编码一个含有492个氨基酸残基的蛋白,其分子量为53.81 k D,等电点为6.75;Femate3编码一个含有516个氨基酸残基的蛋白,分子量为56.12 k D,等电点为6.52。通过构建系统进化树显示Fe TT12属于原花青素mate转运蛋白;Fe mate3属于柠檬酸盐mate转运蛋白。将Fe mate3与其他物种中转运柠檬酸盐的mate型蛋白氨基酸多序列比对及同源分析,发现其与Al离子胁迫相关的荞麦mate蛋白Fe mate2的一致性达到96.33%;同时将Fe TT12氨基酸序列与其他植物TT12编码的氨基酸序列进行比对和同源分析,得到荞麦Fe TT12与其他物种的TT12蛋白的氨基酸序列具有极高的同源性,其中与Mn TT12蛋白同源性最高,为77.3%;与拟南芥TT12蛋白同源性最低,为41.5%。进一步研究Fett12的表达特异性与原花青素累积之间的相关性,得到Fett12的表达具有明显的时空特异性,且在荞麦叶中的表达量最高。原花青素的含量测定中发现原花青素作为次级代谢产物,其分布具有明显的组织器官差异,且在荞麦花中的含量明显较高。在荞麦不同发育阶段的种子中,Fett12的表达量随着种子不断成熟而增高,PA的含量逐渐下降。【结论】在荞麦中成功克隆获得2条mate序列——Fett12和Femate3。其中,Fett12与荞麦中原花青素的转运和累积相关,Femate3可能与荞麦中Al离子胁迫相关。

关键词： mate 荞麦原花青素 RACE

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植物ABC和mate转运蛋白与次生代谢物跨膜转运

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植物生理学报 2011年第8期47卷 752-758页

作者：谢小东程廷才王根洪段军夏庆友重庆大学农学及生命科学研究院重庆400044

植物产生大量的次生代谢物,不但对植物自身适应性具有极其重要的作用,而且有着巨大的实用价值。次生代谢物的跨膜转运是植物次生代谢工程研究的一个新兴领域。ABC(ATP-binding cassette)和mate(multidrug and toxin extrusion)转运蛋白... 详细信息

植物产生大量的次生代谢物,不但对植物自身适应性具有极其重要的作用,而且有着巨大的实用价值。次生代谢物的跨膜转运是植物次生代谢工程研究的一个新兴领域。ABC(ATP-binding cassette)和mate(multidrug and toxin extrusion)转运蛋白与生物体内多种物质的跨膜转运有关,在植物次生代谢物的运输过程中均发挥着重要作用。文章主要综述了ABC和mate转运蛋白在植物次生代谢物跨膜转运中的研究进展。

关键词：次生代谢物跨膜转运 ABC mate 转运蛋白

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Major Phenolics in Yerba mate Extracts (<i>Ilex paraguariensis</i>) and Their Contribution to the Total Antioxidant Capacity

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Food and Nutrition Sciences 2013年第8期4卷 154-162页

作者： Lorena Deladino Aline Schneider Teixeira Mario Reta Antonio D. Molina García Alba S. Navarro Miriam N. Martino Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA CONICET-UNLP) La Plata Argentina Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA CONICET-UNLP) La Plata Argentina Facultad de Ingeniería Universidad Na- cional de La Plata (UNLP) La Plata Argentina. ICTAN Instituto de Ciencia y Tecnología de Alimentos y Nutrición CSIC José Antonio Novais 10 Madrid Spain Lab. de Separaciones Analíticas División Química Analítica Fac. Cs. Exactas (UNLP) La Plata Argentina

Yerba mate (Ilex paraguariensis) is an indigenous crop which is highly consumed as an infusion in the South American subtropical forest. It has a high concentration of antioxidant substances, providing health benefits and helping to prevent diseases. The objectives of this work were to characterize an aqueous yerba mate extract by spectrophotometric and chromatographic (HPLC) methods and to study the effect of the freeze-drying process on the polyphenols profile and antioxidant activity, determined by a novel method. An aqueous extract was obtained and lyophilized to obtain a yerba mate powder with antioxidant properties. The extracts showed a high polyphenol content, determined by Folin-Ciocalteau and HPLC, and a high antioxidant activity towards the DPPH· radical and after the recently developed method of photochemiluminescence. A linear correlation was found between Folin-Ciocalteau and DPPH methods for lyophilized samples. HPLC analysis allowed determining antioxidant components like rutin, caffeine and chlorogenic acid. Lyophilization caused a decrease in total polyphenol content and antiradical activity of the extracts and this fact was mainly attributed to changes in the chlorogenic acid related compounds and rutin structures, after their photochemiluminescence data. The photoluminiscent method proves to be an advantageous approach for antioxidant capacity determination.

关键词： Yerba mate Natural Antioxidants Freeze Drying DPPH HPLC PCL

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Yerba mate Extract Encapsulation with Alginate and Chitosan Systems: Interactions between Active Compound Encapsulation Polymers

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Journal of Encapsulation and Adsorption Sciences 2011年第4期1卷 80-87页

作者： Pablo S. Anbinder Lorena Deladino Alba S. Navarro Javier I. Amalvy Miriam N. Martino Facultad de Ingenieria Instituto de Investigaciones Fisico-Quimicas Teoricas y Aplicadas Centro de Investigacion y Desarrollo en Criotecnologia de Alimentos

Yerba mate (Ilex paraguariensis) contains a high amount of polyphenols associated with antiradical activity and possible benefits for preventing degenerative diseases. Natural extracts from this South American herb were encapsulated in calcium alginate and calcium alginate-chitosan beads to be incorporated as an additive in food products. The interactions between the active compound and the polymers were evaluated by Scanning Electron Microscopy (SEM), thermal analysis (Thermo Gravimetric Assays, TGA, and Differential Scanning Calorimetry, DSC) and Fourier Transform Infrared Spectrometry (FT-IR) studies. Also, the effect of these interactions on extract release in a gastrointestinal model system was evaluated. Results showed the interactions between the calcium alginate matrix and the chitosan external layer. Also, interactions between the natural extract and each polymer were observed. In both encapsulation systems the highest polyphenol content was released in simulated gastric fluid. However, capsules coated with chitosan allowed releasing a higher amount of polyphenols into the simulated intestinal fluid. This fact was attributed to both the protection of the chitosan barrier and the strong interaction between yerba mate extract and chitosan.

关键词： Yerba mate Antioxidants Alginate Chitosan Encapsulation

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澳中呼语词mate和“哥们”的比较

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中南民族大学学报（人文社会科学版） 2004年第2期24卷 179-181页

作者：吕万英中南民族大学外语学院湖北武汉430074

mate和"哥们"分别是澳大利亚英语和中文中常见的呼语词。本文通过比较mate和"哥们"的语用功能和词义,认为二者不仅在语义和语用功能等方面十分相似,而且包含类似的道德准则。

关键词： mate 哥们比较

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