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| 1 | Study on Multi-Scale Blending Initial Condition Perturbations for a Regional Ensemble Prediction System显示文摘An initial conditions(ICs) perturbation method was developed with the aim to improve an operational regional ensemble prediction system(REPS). Three issues were identified and investigated:(1) the impacts of perturbation scale on the ensemble spread and forecast skill of the REPS;(2) the scale characteristic of the IC perturbations of the REPS; and(3) whether the REPS's skill could be improved by adding large-scale information to the IC perturbations. Numerical experiments were conducted to reveal the impact of perturbation scale on the ensemble spread and forecast skill. The scales of IC perturbations from the REPS and an operational global ensemble prediction system(GEPS) were analyzed. A 'multi-scale blending'(MSB) IC perturbation scheme was developed, and the main findings can be summarized as follows: The growth rates of the ensemble spread of the REPS are sensitive to the scale of the IC perturbations; the ensemble forecast skills can benefit from large-scale perturbations; the global ensemble IC perturbations exhibit more power at larger scales, while the regional ensemble IC perturbations contain more power at smaller scales; the MSB method can generate IC perturbations by combining the small-scale component from the REPS and the large-scale component from the GEPS; the energy norm growth of the MSB-generated perturbations can be appropriate at all forecast lead times; and the MSB-based REPS shows higher skill than the original system, as determined by ensemble forecast verification. | ZHANG Hanbin CHEN Jing ZHI Xiefei WANG Yi WANG Yanan | 2015 | Advances in Atmospheric Sciences2015，32，8： | 29 |
| 2 | Using CMIP5 model outputs to investigate the initial errors that cause the “spring predictability barrier” for El Nio events显示文摘Most ocean-atmosphere coupled models have difficulty in predicting the El Nio-Southern Oscillation(ENSO) when starting from the boreal spring season. However, the cause of this spring predictability barrier(SPB) phenomenon remains elusive. We investigated the spatial characteristics of optimal initial errors that cause a significant SPB for El Nio events by using the monthly mean data of the pre-industrial(PI) control runs from several models in CMIP5 experiments. The results indicated that the SPB-related optimal initial errors often present an SST pattern with positive errors in the central-eastern equatorial Pacific, and a subsurface temperature pattern with positive errors in the upper layers of the eastern equatorial Pacific, and negative errors in the lower layers of the western equatorial Pacific. The SPB-related optimal initial errors exhibit a typical La Ni-a-like evolving mode, ultimately causing a large but negative prediction error of the Nio-3.4 SST anomalies for El Nio events. The negative prediction errors were found to originate from the lower layers of the western equatorial Pacific and then grow to be large in the eastern equatorial Pacific. It is therefore reasonable to suggest that the El Nio predictions may be most sensitive to the initial errors of temperature in the subsurface layers of the western equatorial Pacific and the Nio-3.4 region, thus possibly representing sensitive areas for adaptive observation. That is, if additional observations were to be preferentially deployed in these two regions, it might be possible to avoid large prediction errors for El Nio and generate a better forecast than one based on additional observations targeted elsewhere. Moreover, we also confirmed that the SPB-related optimal initial errors bear a strong resemblance to the optimal precursory disturbance for El Nio and La Nia events. This indicated that improvement of the observation network by additional observations in the identified sensitive areas would also be helpful in detecting the signals provided by the precursory disturbance, which may greatly improve the ENSO prediction skill. | ZHANG Jing DUAN WanSuo ZHI XieFei | 2015 | Science China Earth Sciences2015，58，5： | 6 |
| 3 | QTL mapping in A-genome diploid Asiatic cotton and their congruence analysis with AD-genome tetraploid cotton in genus Gossypium显示文摘Asiatic cotton(Gossypium arboreum L.) is an Old World cultivated cotton species.The sinense race was planted extensively in China.Due to the advances in spinning technology during the last century,the species was replaced by the New World allotetraploid cotton G.hirsutum L.Gossypium arboreum is still grown in India and Pakistan and also used as an elite in current cotton breeding programs.In addition,G.arboreum serves as a model for genomic research in Gossypium.In the present study,we generated an A-genome diploid cotton intraspecific genetic map including 264 SSR loci with three morphological markers mapped to 13 linkage groups.The map spans 2,508.71 cM with an average distance of 9.4 cM between adjacent loci.A population containing 176 F2:3 families was used to perform quantitative trait loci(QTL) mapping for 17 phenotypes using Multiple QTL Model(MQM) of MapQTL ver 5.0.Overall,108 QTLs were detected on 13 chromosomes.Thirty-one QTLs for yield and its components were detected in the F2 population.Forty-one QTLs for yield and its components were detected in the F2:3 families with a total of 43 QTLs for fiber qualities.Two QTLs for seed cotton weight/plant and lint index and three QTLs for seed index were consistently detected both in F2 and F2:3.Most QTLs for fiber qualities and yields were located at the same interval or neighboring intervals.These results indicated that the negative correlation between fiber qualities and yield traits may result from either pleiotropic effect of one gene or linkage effects of multiple closely linked genes. | Xuexia Ma Yezhang Ding Baoliang Zhou Wangzhen Guo Yanhui Lv Xiefei Zhu Tianzhen Zhang | 2008 | Journal of Genetics and Genomics2008，35，12： | 5 |
| 4 | Inheritance of resistance to Helicoverpa armigera of 3 kinds of transgenic Bt strains available in upland cotton in China显示文摘There are 3 kinds of transgenic Bt strains, Shanxi 94-24, Zhongxin 94, and R19, in upland cotton in China. Their transgenic Bt insect-resistance cultivars or hybrids have been developed and grown by farmers. Genetic studies indicate that the resistance of the 3 transgenic Bt cotton strains to Helicoverpa armigera is controlled by one pair of non-allelic dominant genes. Linkage relationship between the resistant genes of R19 and Shanxi 94-24 transgenic Bt strains shows that they may be inserted in the same chromosome. FT hybrids crossed among the 3 strains show that high levels of protection from feeding damage are the same as that of their parents. Therefore, there is no co-suppression phenomenon in many transgenic plants. The results presented here afford a fundamental reliance in developing transgenic Bt insect-resistant cultivars and exploiting the heterosis of hybrids in upland cotton. | TANG Canming SUN Jing ZHU Xiefei GUO Wangzhen ZHANG Tianzhen SHEN Jinliang GAO Congfen ZHOU Weijun CHEN Zhixian GUO Sandui | 2000 | Chinese Science Bulletin2000，45，4： | 3 |
| 5 | Variation induced by DNA rearrangement in a transgenic Bt+CpTI cotton strain显示文摘In the development, of transgenic Bt + CpTI cotton cultivars, one male and female sterile mutant has been found in a homozygous T4 strain in our laboratory. The mutant plant, as well as its leaves, buds and flowers, is only 1/2-1/3 as large as that of the wild transgenic Bt + CpTI bivalant cotton plants. Cytological observation found that the chromosome number of the mutant is 2n=52; however, there are 4-8 univalents observed in meiosis I of pollen mother cells. Laboratory bioassay indicated that the mutant was highly resistant to bollworm as the wild plants. PCRamplification revealed that Bt and CpTl genes in the mutant were still intactly inserted. However, small deletion of flanked area had been observed in the mutant by Southern blotting analysis. So it is proposed that the mutant pheno-type might result from either the DNA deletion or T-DNA transferring in plant genome. No such report has been presented that the rearrangement of chromosome structure in a homozygous transgenic line occurred. | Wangzhen Guo Tianzhen Zhang Xiefei Zhu Xiaoling Yuan | 2001 | Chinese Science Bulletin2001，46，7： | 2 |
| 6 | The treatment of cardiac cancer in 312 cases with reconstruction of gastric fundus显示文摘 | Gou Jianjun Zhang Xiefei | 1997 | Chinese Journal of Practical Surgery1997，17，10： | 1 |
| 7 | Variations and transmission of QTL alleles for yield and fiber qualities in upland cotton cultivars developed in China显示文摘 | Zhang Tianzhen Qian Neng Zhu Xiefei | 2013 | PLoS One2013，8，57： | 1 |
| 8 | Molecular mapping of QTLs for fiber qualities in three diverse lines in Upland cotton using SSR markers显示文摘 | Xinlian Shen Wangzhen Guo Xiefei Zhu Youlu Yuan John Z. Yu Russell J. Kohel Tianzhen Zhang | 2005 | Molecular Breeding2005，，2： | 1 |
| 9 | Solution spinning and characterization of poly (vinyl alcohol)/soybean protein blend fibers显示文摘 | Xiefei Zhang Byung G Min Satish Kumar | 2003 | Journal of Applied Polymer Science2003，90，： | 1 |
| 10 | Genetic mapping of quantitative trait loci for fiber quality and yield trait by RIL approach in Upland cotton显示文摘 | Xinlian Shen Wangzhen Guo Qiongxian Lu Xiefei Zhu Youlu Yuan Tianzhen Zhang | 2007 | Euphytica2007，，3： | 1 |
| 11 | Molecular mapping of QTLs for fiber qualities in three diverse lines in Upland cotton using SSR markers显示文摘 | Xinlian Shen Wangzhen Guo Xiefei Zhu Youlu Yuan John Z. Yu Russell J. Kohel Tianzhen Zhang | 2005 | Molecular Breeding2005，，2： | 1 |
| 12 | Size-Dependent Magnetic Properties of Monodisperse Eus Nanocrytals 显示文摘 | Zhang Xiefei Li Qingwen Zhu Yuntian | 2007 | Small2007，3，2： | 1 |
| 13 | Ultrastrong, Stiff, and Lightweight Carbon-Nanotube Fibers 显示文摘 | Zhang Xiefei Li Qingwen Zhu Yuntian | 2007 | Adv Mater2007，19，： | 1 |
| 14 | Molecular mapping of QTLs for fiber qualities in three diverse lines in Upland cotton using SSR markers显示文摘 | Xinlian Shen Wangzhen Guo Xiefei Zhu Youlu Yuan John Z. Yu Russell J. Kohel Tianzhen Zhang | 2005 | Molecular Breeding2005，，2： | 1 |
| 15 | 显示文摘 | Zhang Xiefei Liu Tao Sreekumar T V | 2003 | Nano Letter2003，3，9： | 1 |
| 16 | ; Kumar, Satish Solution spinning and characterization of poly(vinyl alcohol)/soybean protein blend fibers 显示文摘 | Zhang Xiefei Min Byung G | 2003 | Journal of Applied Polymer Science2003，90，3： | 1 |
| 17 | Strong Carbon-Nano- tube Fibers Spun from Long Carbon-Nanotube Arrays 显示文摘 | Zhang Xiefei Li Qingwen Tu Yi | 2007 | Small2007，3，2： | 1 |
| 18 | Gel spinning of PVA/SWNT composite fiber显示文摘 | Xiefei Zhang Tao Liu T.V. Sreekumar Satish Kumar Xiaodong Hu Ken Smith | 2004 | Polymer2004，，26： | 1 |
| 19 | 显示文摘 | Xiefei Zhang Tao Liu Sreekumar T V | 2003 | Nano Letters2003，3，9： | 1 |
| 20 | Genomic insights into the genetic basis of cotton breeding in China显示文摘The excellent Upland cotton(Gossypium hirsutum)cultivars developed since 1949 have made a huge contribution to cotton production in China,the world's largest producer and consumer of cotton.However,the genetic and genomic basis for the improvements of these cotton cultivars remains largely unclear.In this study,we selected 16 Upland cotton cultivars with important historical status in Chinese cotton breeding and constructed a multiparent,advanced generation,intercross(MAGiC)population comprising 920 recombinant inbred lines.A genome-wide association study using the MAGIC population identified 54 genomic loci associated with lint yield and fiber quality.Of them,25(46.30%)pleiotropic genomic loci cause simultaneous changes of lint yield and/or fiber quality traits,revealing complex trade-offs and linkage drags in Upland cotton agronomic traits.Deep sequencing data of 11 introduced ancestor cultivars and publicly available resequencing datasets of 839 cultivars developed in China during the past 70 years were integrated to explore the historical distribution and origin of the elite or selected alleles.Interestingly,85%oftheseelitealleles were selectedandfixed fromdifferent Americanancestors,consistentwithcotton breeding practices in China.However,seven elite alleles of native origin that are responsible for Fusarium wilt resistance,early maturing,good-quality fiber,and other characteristics were not found in American an-cestors but have greatly contributed to Chinese cotton breeding and wide cultivation.Taken together,these results provide a genetic basis for further improving cotton cultivars and reveal that the genetic composition of Chinese cotton cultivars is narrow and mainly derived from early introduced American varieties. | Yiqian Li Zhanfeng Si Guoping Wang Zhuolin Shi Jinwen Chen Guoan Qi Shangkun Jin Zegang Han Wenhao Gao Yue Tian Yun Mao Lei Fang Yan Hu Hong Chen Xiefei Zhu Tianzhen Zhang | 2023 | Molecular Plant2023，16，4： | 0 |
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