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Mapping Heterotic Loci for Yield and Agronomic Traits Using Chromosome Segment Introgression Lines in Cotton

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Journal of Integrative Plant Biology 2013年第8期55卷 759-774页

作者： Xian Guo Yuping Guo Jun Ma Fang Wang Mizhen sun Lijuan Gui Jiajia Zhou Xianliang Song xuezhen sun Tianzhen Zhang College of Agronomy/National Key Laboratory of Crop Biology Shandong Agricultural University National Key Laboratory of Crop Genetics and Germplasm Enhancement Cotton Research InstituteNanjing Agricultural University

In the present study, a set of chromosome segment introgression lines （CSILs） using Gossypium hirsutum L. TM-1 as the recipient parent and G. barbadense Hai7124 as the donor parent were used to explore the genetic basis of heterosis for interspecific hybrids. Two sets of F1 populations individually derived from CSILs crossing with both parents were configured to investigate heterotic loci （HL） and substitution effect loci （SL）. A total of 58 HL and 39 SL were identified in 3 years. One stable HL, hLP-A4-3, could be detected in all 3 years. Three HLs, hBS-A8-1, hLP-D6-1, and hSI-D7-11, could be detected in 2 years. Four SLs, sBSoD7- 1, sLP-A8-1, sLP-D7-1, and sLP-D12-1, could be detected in 2 years. HL and SL tended to be distributed in some HL-rich chromosome segments with close positions. Compared with QTL detected in a former study, HL showed little overlap with QTL, indicating that trait phenotype and heterosis might be controlled by different sets of loci. All three forms of genetic effects （partial-, full-, over-dominant） were identified, while the over-dominant effect made the main contribution to heterosis. These results may help lay the foundation for clarifying the heredity mechanism of heterosis in cotton.

关键词： Cotton chromosome segment introgression lines heterosis heterotic loci.

Genotypic variance in 13C-photosynthate partitioning and within-plant boll distribution in cotton

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Journal of Cotton Research 2020年第2期3卷 124-133页

作者： NIE Junjun QIN Dulin MAO Lili LIU Yanhui DONG Hezhong SONG Xianliang sun xuezhen State Key Laboratory of Crop Biology College of AgronomyShandong Agricultural UniversityTaian 271018ShandongChina Cotton Research Center Shandong Academy of Agricultural SciencesJinan 250100ShandongChina Technical Guidance Station of Cotton Production in Shandong Province Jinan 250013ShandongChina Qufu Agricultural Bureau Qufu 273100ShandongChina.

Background:Photosynthate partitioning and within-plant boll distribution play an important role in yield formation of cotton;however,if and how they interact to mediate yield remains *** objective of this study was to investigate the genotypic variance in photosynthate partitioning and within-plant boll distribution,with a focus on their interactions with regard to yield and yield components.A field experiment was conducted in the Yellow River region in China in 2017 and 2018 using a randomized complete block design with three *** partitioning of three commercial cultivars(DP 99 B,Lumianyan 21 and Jimian 169),varying in yield potential,to different organs(including bolls)at early flowering,peak flowering,and peak boll-setting stages,as well as withinplant boll distribution at harvest,and their effects on yield formation were ***:Lint yield of Jimian 169 was the highest,followed by Lumianyan 21 and DP 99 *** differences were observed in the number of inner bolls and boll weight among the three cultivars.J169 partitioned significantly more photosynthate to the fruit and fiber than Lumianyan 21 and DP 99 B and allocated over 80%of assimilates to the inner ***,Lumianyan 21 allocated a higher proportion of photosynthate to bolls and fiber,with12.5%–17.6%more assimilates observed in the inner bolls,than DP 99 ***:Genotypic variance in lint yield can be attributed to differences in the number of inner bolls and boll weight,which are affected by photosynthate ***,the partitioning of photosynthate to fiber and inner bolls can be used as an important reference for cotton breeding and cultivation.

关键词： Genotypic variance Within-plant boll distribution Photosynthate partitioning Yield Yield components

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基于互补型光栅编码的相位展开

光学学报 2008年第10期28卷 1947-1951页

作者：孙学真苏显渝邹小平四川大学电子信息学院光电科学技术系四川成都610065

为了解决在运用相移技术和二元光栅编码结构光进行相位展开时存在的误码问题,提出了一种新的互补型二元光栅编码。通过多投一幅格雷码图案,并利用格雷码相邻码字之间Hamming距离为1的特点,设计出互补的两种编解码方式。利用两种编码出... 详细信息

为了解决在运用相移技术和二元光栅编码结构光进行相位展开时存在的误码问题,提出了一种新的互补型二元光栅编码。通过多投一幅格雷码图案,并利用格雷码相邻码字之间Hamming距离为1的特点,设计出互补的两种编解码方式。利用两种编码出现误码位置的不同,并结合相移技术解决了去包裹过程中的误码问题。论述了互补型二元光栅编码的设计方法及特点,并详细分析了基于互补型二元光栅编码的相位展开过程。计算机模拟和三维重建实验清楚地表明,提出的互补型光栅编码能很好地解决了误码问题且具有很高的可靠性。

关键词：光学测量结构光相位展开格雷码互补型光栅编码

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康惠尔溃疡贴治疗Ⅰ、Ⅱ期压疮效果观察

护理学杂志 2005年第22期20卷 58-59页

作者：孙学珍湖北省肿瘤医院腹泌外科湖北武汉430079

目的探讨快捷、有效的治疗Ⅰ、Ⅱ期压疮的方法。方法对32例压疮患者,按压疮发生的先后顺序分为观察组(单号)及对照组(双号)各16例,观察组16例(21处)Ⅰ、Ⅱ期压疮应用康惠尔增强型溃疡贴,对照组16例(19处)采用常规方法进行治疗。结果治... 详细信息

目的探讨快捷、有效的治疗Ⅰ、Ⅱ期压疮的方法。方法对32例压疮患者,按压疮发生的先后顺序分为观察组(单号)及对照组(双号)各16例,观察组16例(21处)Ⅰ、Ⅱ期压疮应用康惠尔增强型溃疡贴,对照组16例(19处)采用常规方法进行治疗。结果治愈时间观察组(4.31±1.62)d,对照组(10.38±3.07)d,两组比较,P<0.01,差异有显著性意义。结论用康惠尔增强型溃疡贴治疗Ⅰ、Ⅱ期压疮可缩短疗程。

关键词：压疮 Ⅰ期 Ⅱ期溃疡贴

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短季棉的早熟性机制及栽培利用

棉花学报 2018年第5期30卷 406-413页

作者：祁杰代建龙孙学振董合忠山东农业大学农学院山东泰安271018 山东棉花研究中心济南250100

短季棉是指生育期短、生长发育进程快、开花结铃集中、晚播早熟的棉花品种类型。本文评述了短季棉早熟性的形态特征、生理和分子生物学机制,介绍了短季棉在改革优化种植制度和方式、推进盐碱地植棉、机械化植棉、棉花无膜栽培等方面的... 详细信息

短季棉是指生育期短、生长发育进程快、开花结铃集中、晚播早熟的棉花品种类型。本文评述了短季棉早熟性的形态特征、生理和分子生物学机制,介绍了短季棉在改革优化种植制度和方式、推进盐碱地植棉、机械化植棉、棉花无膜栽培等方面的作用和意义,提出了进一步加强短季棉育种研究和栽培利用的策略。

关键词：短季棉早熟性生理机制栽培

6 - 23 A Negative Hydrogen Ion Source for PET Cyclotron

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IMP & HIRFL Annual Report 2012年第1期 267-268页

作者： Lin Shuhao Fang Xing Zhang Hengjuan Ma Baohua Wang Hui Zhou Luncai Wang Bin Zhang xuezhen Zhang Zimin sun Liangting Yuan Ping Zhao Hongwei

Divergent responses of runoff to climate change in the upper basins of the Third Pole dominated by westerlies and monsoon

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Science China Earth Sciences 2024年第8期67卷 2592-2614页

作者： Qikai sun Fengge SU He sun State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100101China

The diverse climates,distribution of snow and glaciers,and geographic locations directly affect the runoff response to climate change in the upper basins of the Third *** present,a comprehensive analysis of runoff variations and their distinct responses to climate change in the westerlies-and monsoon-dominated upper basins is still *** study comprehensively analyzed annual runoff variations in westerlies-dominated basins(the upper basins of the Aksu(UAKS),Syr Darya(USRD),Yarkant(UYK),Hotan(UHT),Amu Darya(UAMD),and Indus(UI))and monsoon-dominated basins(the upper basins of the Yangtze(UYA),Yellow(UYE),Lancang(ULC),Nujiang(UNJ),and Yarlung Zangbo(UYZ))of the Third Pole from 1961 *** multi-source meteorological data and large-scale circulation factors,this study investigated the divergent responses of runoff in the upper basins to climate change,and explored the large-scale circulation mechanisms underlying runoff variations in these upper *** results showed that:(1)The annual runoff in the majority of upper basins(except for the UYE and UYZ)exhibited an increasing trend,and the annual runoff in the UAKS,UYK,and UI showed a significant increasing trend from1961 to *** annual runoff in the upper basins of the Third Pole changed abruptly from decreasing to increasing between the 1980s and 2000s,with the exception of the UYE.(2)The runoff in the monsoon-dominated upper basins has been controlled primarily by changes in precipitation over the past 55 *** contrast,the runoff in the westerlies-dominated upper basins exhibited three distinct long-term responses to climate change:temperature-dominated(UYK and UHT),precipitation-dominated(USRD and UAMD),and the combined influence of precipitation and temperature(UAKS and UI).Since the 1960s,the sensitivity of runoff to warm season temperature changes in the most westerlies-dominated upper basins has decreased,while the response of runoff to precipitation changes has intensified.(3)The stud

关键词： Upper basins of the Third Pole Climate change Westerlies and monsoon Runoff variations Large-scale circulation factors

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New perspectives on deep carbon cycling

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Science China Earth Sciences 2024年第8期67卷 2411-2422页

作者： Weidong sun Center of Deep Sea Research Key Laboratory of Ocean Observation and ForecastingInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laoshan Laboratory Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

The proto-atmosphere serves as a crucial starting point for the carbon *** based on atmospheric data from Mars and Venus suggest that Earth's proto-atmosphere contained>110 bar of CO_(2)and>2.6 bar of *** protoatmosphere had over 1000 bar of water vapor during the magma ocean stage,assuming the proto-ocean had a volume of two oceans of *** this stage both water and carbon dioxide were in a supercritical state at the magma-atmosphere *** serpentinization reactions occurred due to rock-water interaction,producing abundant ***,nitrogen is reduced to ammonia,and carbon dioxide to methane,forming carbonate *** proto-atmosphere dominated by methane,ammonia,and hydrogen formed a significant amount of amino acids through *** process is essential not only to the origin of life,but also to the early carbon-nitrogen cycle on *** the Hadean eon,a large amount of CO_(2)was sequestered as carbonate and organic ***,it mainly entered the deep mantle through mantle overturn or *** the mantle transition zone,carbonate undergoes“Redox freezing”,where carbonate is reduced to diamond through oxidation of ferrous iron in the *** the lower mantle,Fe^(2+)undergoes disproportionation reactions,forming Fe^(3+)and metallic *** these,Fe^(3+)mainly resides in bridgmanite,thereby increasing the oxygen fugacity of the lower mantle,while metallic iron falls to the Earth's *** distribution of carbon in the mantle is crucial for deep carbon *** density curves of diamond and mantle peridotite melt intersect at the bottom of the mantle transition zone(about 660 km).This density crossover leads to the accumulation of diamond during the magma ocean *** materials such as subducting slabs enter the lower mantle,compensatory upwelling of lower mantle material *** enters the upper mantle,decomposes,releasing Fe^(3+)ions and oxidizes diamond

关键词： Carbon cycling Proto-atmosphere Amino acids Subduction initiation Passive margin subduction Atmospheric carbon dioxide

Fossil Equidae in the Linxia Basin with Biostratigraphic and Paleozoogeographic Significance

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 1-9页

作者： sun Boyang Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China

The Linxia Basin is characterized by an abundance of Cenozoic sediments,that contain exceptionally rich fossil *** are abundant in the Linxia Basin,the fossil record of equids in this region including 16 species that represent 10 *** comparison to other classic late Cenozoic areas in China,the Linxia Basin stands out,because the fauna and chronological data accompanying Linxia equids render them remarkably useful for *** anchitheriines in the region,such as Anchitherium and Sinohippus,represent early equids that appeared in the late stages of the middle and late Miocene,*** the equines,most species of Chinese hipparions have been identified in the Linxia Basin and some species of the genera Hipparion and Hippotherium have FAD records for ***,Equus eisenmannae is one of the earliest known species of Equus in the Old World and is well-represented at the Longdan *** species with precise geohistorical distributions can serve as standards for high-resolution chronological units within this *** at the eastern margin of the Tibetan Plateau and subject to considerable uplift,the Linxia Basin has served as a biogeographic transition area for equids throughout the late Cenozoic.

关键词： Equidae Cenozoic biostratigraphy paleozoogeography Linxia Basin