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Insect Science 2006年第4期13卷 319-323页

作者： JIAN-QUAN YANG JIA-HUA CHEN JUAN-JUAN LIU beneficial insects Lab Fujian Agriculture & Forestry University Fuzhou China

The genus Indabracon van Achterberg, 1993 was discovered in China, and one new species （I. bicolor sp. nov.） of this genus is fully described and illustrated in the present paper. A key to the species of the genus is provided. The new species is similar to the Indian species I. trimaculatus （Cameron, 1900） structurally, but differs for example by： basal half of pterostigma yellow; apical half dark brown; smooth postero-lateral area of the third tergite rather small; propodeum with belt of setae dorsally and lamelliform carinae posteriorly; ovipositor sheath approximately 0.60 times the forewing, somewhat longer than metasoma; the first tergite surface distinctly carinate and rugose, especially in its medial area and laterally. The type specimens are deposited in the beneficial insects Lab, College of Plant Protection, Fujian Agriculture ＆ Forestry University, China.

关键词： Braconidae Braconinae China Indabracon new species

Sublethal effects of malathion on boll weevil （Coleoptera： Curculionidae） fecundity when maintained on cotton squares or artificial diet

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Insect Science 2006年第4期13卷 287-292页

作者： JOHN SCOTT ARMSTRONG ALLAN T. SHOWLER MAMOUDOU SETAMOU SHOIL GREENBERG beneficial insects unit Integrated Farming and Natural Resources Research unit Kika de la Garza Subtropical Agricultural Research Center USDA-ARS Texas A&M University Citrus Center Welascao Texas USA

Mated 3-day-old female boll weevils, Anthonomus grandis grandis Boheman, reared from field-infested cotton （Gossypium hirsutum L.） squares were topically treated with an estimated LD50 of malathion （2μg） to assess its effects on fecundity, oviposition, and body fat condition. Two different food sources, cotton squares and artificial diet, were assessed in malathion-treated and nontreated （control） weevils. The LD50 caused ≈ 50% mortality in the square-fed malathion treatment, but the artificial diet-fed malathion-treated weevils were less susceptible. LD50 survivors fed on the squares produced ≥ 9 times more chorionated eggs in the ovaries and oviposited ≥ 19-fold more than survivors fed artificial diet, regardless of the malathion treatment. Boll weevils that survived a 2μg LD50 malathion and also fed squares were ≈4.5-fold leaner than diet-fed weevils. Our findings demonstrate that non-resistant boll weevils surviving a sublethal dose of malathion will reproduce without any delay or significant loss in fecundity, and the food source for which boll weevils are maintained when conducting these assays will directly affect the results. The significance of these findings and how they are related to the final stages of eradicating the boll weevil from the US are discussed.

关键词： Anthonomus grandis grandis boll weevil fecundity malathion sublethal

Reproductive isolation between sympatric sister species, Mussaenda kwangtungensis and M. pubescens var. alba

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Journal of Integrative Plant Biology 2015年第10期57卷 859-870页

作者： Zhonglai Luo Tingting Duan Shuai Yuan Shi Chen Xiufeng Bai Dianxiang Zhang Key Laboratory of Plant Resources Conservation and Sustainable Utilization South China Botanical Garden the Chinese Academy of Sciences University of the Chinese Academy of Sciences beneficial insects Institute Fujian Agriculture and Forestry University Department of Cell Biology the Third Military Medical University

Reproductive isolation defines the biological species concept and plays a key role in the formation and maintenance of species. The relative contributions of different isolating stages has been suggested to be closely associated with phylogenetic relatedness. Few studies have focused on the relative contributions of pre- versus post-zygotic mechanisms, and even fewer have been conducted under strict phylogenetic frameworks. Pre-and post-zygotic reproductive isolation stages have been investigated in the sister species Mussaenda kwangtungensis and M. pubescens var. alba. The two species have partly overlapping distribu-tion ranges and flowering times, while the principal pollinators differed strikingly for them, demonstrating strong pre-zygotic isolations. Natural hybrids were detected by simple sequence repeat markers and their maternal parents were identified based on chloroplast gene sequen-ces. Five out of 81 individuals were suggested to be hybrids that fall into the categories F2, BC1, and BC2 by the NewHybrids analysis. Interspecific crossings resulted in significantly reduced fruit set and seed germination rates. Phylogenetic analysis revealed short Kimura-2-parameter distance between M. kwangtungensis and M. pubescens var. alba. These findings strongly supported the hypothesis that for species with a closer phylogenetic relationship, pre-zygotic isolation plays an important part in limiting gene exchange in sympatric areas.

关键词： Hybridization microsatellites Mussaenda phylogenetic analysis reproductive isolation

Soybean Root System Architecture Trait Study through Genotypic,Phenotypic,and Shape-Based Clusters

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Plant Phenomics 2020年第1期2卷 149-171页

作者： Kevin G.Falk Talukder Zaki Jubery Jamie A.O’Rourke Arti Singh Soumik Sarkar Baskar Ganapathysubramanian Asheesh K.Singh Department of Agronomy Iowa State UniversityAmesIowaUSA Department of Mechanical Engineering Iowa State UniversityAmesIowaUSA USDA-Agricultural Research Service Corn Insects and Crop Genetics Research UnitAmesIowaUSA

We report a root system architecture(RSA)traits examination of a larger scale soybean accession set to study trait genetic *** from the limitation of scale,scope,and susceptibility to measurement variation,RSA traits are tedious to *** 35,448 SNPs with an imaging phenotyping platform,292 accessions(replications=14)were studied for RSA traits to decipher the genetic *** on literature search for root shape and morphology parameters,we used an ideotypebased approach to develop informative root(iRoot)categories using root *** RSA traits displayed genetic variability for root shape,length,number,mass,and *** accessions clustered into eight genotype-and phenotype-based clusters and displayed ***-based clusters correlated with geographical *** profiles indicated that much of US origin genotypes lack genetic diversity for RSA traits,while diverse accession could infuse useful genetic variation for these ***-based clusters were created by integrating convolution neural net and Fourier transformation methods,enabling trait cataloging for breeding and research *** combination of genetic and phenotypic analyses in conjunction with machine learning and mathematical models provides opportunities for targeted root trait breeding efforts to maximize the beneficial genetic diversity for future genetic gains.

关键词： neural breeding Root

Recent advances in molecular biology research of a rice pest, the brown planthopper

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Journal of Integrative Agriculture 2019年第4期18卷 716-728页

作者： BAO Yan-yuan ZHANG Chuan-xi State Key Laboratory of Rice Biology and Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and insects Institute of Insect Sciences Zhejiang University

The brown planthopper, Nilaparvata lugens St?l, has become a major threat in tropical Asian and China since the rice green revolution of the 1960 s. Currently, insecticide application remains the primary choice for controlling this rice insect pest, but heavy use of insecticides poses dangerous risks to beneficial natural enemies and pollinators, and stimulates N. lugens reproductivity, and has caused a resurgence of the pest in the major rice-planting regions throughout Asia. Achieving the long-lasting goal of sustainable management of N. lugens requires understanding of the molecular basis of outbreaks of the pest and the development of environment-friendly pest-control strategies. Here, we review the recent molecular advances in N. lugens research on the aspects of its endosymbionts, virus transmission, insecticide resistance, and interaction between N. lugens and rice plants. We also put forward further research directions that may shed some lights on management of the rice pest.

关键词： Nilaparvata lugens endosymbionts virus transmission insecticide resistance interaction with rice biological management

Inducible pine rosin defense mediates interactions between an invasive insect-fungal complex and newly acquired sympatric fungal associates

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Integrative Zoology 2015年第5期10卷 453-464页

作者： Chihang CHENG Fangyuan ZHOU Min LU Jianghua SUN State Key Laboratory of Integrated Management of Pest insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Mutualism between insects and fungi drives insect evolutionary diversification and niche expansion;for invasive insects,however,mechanisms by which they maintain mutualistic relationships with beneficial fungi have not been clearly ***,we report that an invasive herbivorous insect,the red turpentine beetle(RTB),with its co-invasive mutualistic fungus,Leptographium procerum,has newly acquired a set of sympatric fungi during invasion,which could potentially outcompete the RTB mutualistic *** pine Pinus tabuliformis exhibited more rosin-based responses to the sympatric fungi than to RTB mutualistic fungus and,in return,the rapidly induced rosin suppressed the sympatric fungi more significantly than *** addition,from direct fungal pairing competitions,we found that the antagonistic effects of sympatric fungi on *** were drastically reduced under induced rosin *** results together with previous findings imply that pine oleoresin defense(turpentine and rosin)might have been exploited by the invasive mutualistic fungus ***,which helps to explain its invasion success and,by extension,its mutualistic partner RTB in China.

关键词： bark beetle-ophiostomatoid fungi-conifer interactions diterpene resin acid invasive species mutualism pine defense

Viral infection of tobacco plants improves performance of Bemisia tabaci but more so for an invasive than for an indigenous biotype of the whitefly

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第1期11卷 30-40页

作者： Jian LIU Meng LI Jun-min LI Chang-jun HUANG Xue-ping ZHOU Fang-cheng XU Shu-sheng LIU Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and insects Institute of Insect Sciences Zhejiang University Hangzhou 310029 China) Institute of Biotechnology Zhejiang University Hangzhou 310029 China Wenzhou Academy of Agricultural Sciences Wenzhou 325006 China

The ecological effects of plant-virus-vector interactions on invasion of alien plant viral vectors have been rarely investigated. We examined the transmission of Tomato yellow leaf cur/China virus （TYLCCNV） by the invasive Q biotype and the indigenous ZHJ2 biotype of the whitefly Bemisia tabaci, a plant viral vector, as well as the influence of TYLCCNV-infection of plants on the performance of the two whitefly biotypes. Both whitefly biotypes were able to acquire viruses from infected plants and retained them in their bodies, but were unable to transmit them to either tobacco or tomato plants. However, when the Q biotype fed on tobacco plants infected with TYLCCNV, its fecundity and longevity were increased by 7- and 1-fold, respectively, compared to those of the Q biotype fed on uninfected tobacco plants. When the ZHJ2 biotype fed on virus-infected plants, its fecundity and longevity were increased by only 2- and 0.5-fold, respectively. These data show that the Q biotype acquired higher beneficial effects from TYLCCNV-infection of tobacco plants than the ZHJ2 biotype. Thus, the Q biotype whitefly may have advantages in its invasion and displacement of the indigenous ZHJ2 biotype.

关键词： Bemisia tabaci Biotypes Begomovirus Vector-virus interaction Biological invasion

COMPLEMENTARY SEX DETERMINATION IN HYMENOPTERAN PARASITOIDS AND ITS IMPLICATIONS FOR BIOLOGICAL CONTROL

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Entomologia Sinica 2003年第2期10卷 81-94页

作者： WUZhishan KeithR.Hopper PaulJ.Ode RogerW.Fuester CHENJia-hua GeorgeE.Heimpel Department of Entomology University of MinnesotaSt.PaulMN55108USA beneficial insects Introduction Research Laboratory USDA-ARSUniversity of DelawareDE19713USA Department of Entomology North Dakota State UniversityFargoND58105USA Department of Plant Protection Fufian Agriculture & Forestry UniversityFuzhouFujian 350002P.R.China

In haplodiploid Hymenoptera, unfertilized eggs produce haploid males while fertilized eggs lead to diploid females under most circumstances. Diploid males can also be produced from fertilization under a system of sex determination known as complementary sex determination (CSD). Under single-locus CSD, sex is determined by multiple alleles at a single sex locus. Individuals heterozygous at the sex locus are female while hemizygous and homozygous individuals develop as haploid and diploid males, respectively. In multiple-locus CSD, two or more loci, each with two or more alleles, determine sex. Diploid individuals are female if one or more sex loci are het-erozygous, while a diploid is male only if homozygous at all sex loci. Diploid males are known to occur in 43 hym-enopteran species and single-locus CSD has been demonstrated in 22 of these species. Diploid males are either developmentally inviable or sterile, so their production constitutes a genetic load. Because diploid male production is more likely under inbreeding, CSD is a form of inbreeding depression. It is crucial to preserve the diversity of sex alleles and reduce the loss of genetic variation in biological control. In the parasitoid species with single-locus CSD, certain precautionary procedures can prevent negative effects of single-locus CSD on biological control.

关键词： Complementary sex determination (CSD) Hymenoptera diploid males biological control

Genetic and agronomic assessment of cob traits in corn under low and normal nitrogen management conditions

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Genetic and agronomic assessment of cob traits in corn under...

Fecal microbiota transplantation:whole grain highland barley improves glucose metabolism by changing gut microbiota

第一届全国玉米生物学学术研讨会

作者：张永中 Hongjun Liu Constantin Jansen Nick Lauter Kanwarpal Dhugga Zhiming Zhang Yaou Shen Haijian Lin Shibin Gao Guangtang Pan Thomas Lübberstedt Maize Research Institute Sichuan Agricultural University Department of Agronomy Iowa State University USDA-ARS Corn insects and Crop Genetics Research unit Iowa State University Pioneer Hi-Bred International Inc.

With rising energy demands and costs for fossil fuels,alternative energy from renewable sources such as maize cobs will become *** cobs have beneficial characteristics for utilization as feedstock including compact tissue,high cellulose content and low ash and nitrogen *** is quantitatively the most important nutrient for plant ***,the influence of nitrogen

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来源： cnki会议评论

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Food Science and Human Wellness 2024年第4期13卷 2014-2024页

作者： Xin Ren Fulong Zhang Min Zhang Yuan Fang Zenglong Chen Meili Huan Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Engineering and Technology Research Center of Food AdditivesNational Grain Industry Highland Barley Deep Processing Technology Innovation CenterBeijing Technology and Business UniversityBeijing 100048China State Key Laboratory of Integrated Management of Pest insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China COFCO Nutrition and Health Research Institute Beijing 102209China

Highland barley(HB)is a high-altitude cereal with rich nutritional components and potential health *** clarify its hypoglycemic effect and mechanism,we investigated the effect of whole grain HB and fecal microbiota transplantation(FMT)on glucose metabolism and gut microbiota in high-fat diet and streptozotocin(HFD/STZ)-induced diabetic *** results showed that HB(40%)significantly decreased fasting blood glucose and the area under the glucose tolerance curve,significantly increased insulin secretion and improved insulin resistance in HFD/STZ-induced diabetic mice(Pbeneficial bacteria,such as Bifidobacterium and Akkermansia,were significantly enriched in the gut of diabetic mice after whole grain HB ***,the results of further FMT experiments verified that the fecal microbiota after the 40%HB intervention not only significantly increased the relative abundance of Bifidobacterium and Akkermansia but also effectively improved glucose metabolism and alleviated the inflammatory state in HFD/STZ-induced diabetic ***,our study confirmed the bridge role of gut microbiota in improving glucose metabolism of whole grain HB,which could promote the development of precision nutrition.

关键词： Highland barley Diabetes Glucose metabolism Gut microbiota Fecal bacteria transplantation