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| 1 | Analysis of the meiosis in the F_1 hybrids of Longiflorum × Asiatic(LA) of lilies(Lilium) using genomic in situ hybridization显示文摘Longiflorum and Asiatic lilies of the genus Lilium of the family Liliaceae are two important groups of modern lily cultivars.One of the main trends of lily breeding is to realize introgression between these groups.With cut style pollination and embryo rescue,distant hybrids between the two groups have been obtained.However,the F1 hybrids are highly sterile or some of them could produce a small number of 2n gametes,and their BC1 progenies are usually triploids.Dutch lily breeders have selected many cultivars from these BC1 progenies based on their variation.It is presumably suggested that such variation could be caused by intergenomic recombination and abnormal meiosis during gamete formation in F1 hybrids of Longiflorum × Asiatic(LA) hybrids in Lilium.Therefore,the meiotic process of ten F1 LA hybrids was cytologically investigated using genomic in situ hybridization and traditional cytological methods in the present research.The results showed that:at metaphase I,the homoeologous chromosome pairing among different F1 hybrids ranged from 2.0 to 11.4 bivalents formed by homoeologous chromosomes per pollen mother cell(PMC),and very few multivalents,and even very few bivalents were formed by two chromosomes within one genome rather than homoeologous chromosomes in some PMCs;at anaphase I,all bivalents were disjoined and most univalents were divided.Both the disjoined bivalents(half-bivalents) and the divided univalents(sister chromatids) moved to the opposite poles,and then formed two groups of chromosomes;because the two resulting half-bivalents retained their axes in the cell undisturbed,many crossover types,including single crossovers,three strand double crossovers,four strand double crossovers,four strand triple crossovers,and four strand multiple crossovers between the non-sister chromatids in the tetrads of bivalents,were clearly inferred by analyzing the breakpoints on the disjoined bivalents.The present investigation not only explained the reason for sterility of the F1 LA hybrids and the variation of their BC1 progenies,but also provided a new method to analyze crossover types in other F1 interspecific hybrids as well. | Shujun Zhou Munikote S. Ramanna Richard G.E Visser Jaap M. van Tuyl | 2008 | Journal of Genetics and Genomics2008，35，11： | 8 |
| 2 | Exogenity,cointegration,and economic policy analysis:an overview显示文摘 | Ericsson N.R Hendry D.F Mizon G.E | | 0，，04： | 1 |
| 3 | Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands显示文摘 | J.D Reeder G.E Schuman | 2001 | Environmental Pollution2001，，3： | 1 |
| 4 | The Arabidopsis histidine phosphotransfer proteins are redundant positive regulators of cytokinin signaling显示文摘 | Hutchison C.E Li J Argueso C Gonzalez M Lee E Lewis M.W Maxwell B.B Perdue T.D SchalLer G.E Alonso J.M Ecker J.R Kieber J.J | | 0，，： | 1 |
| 5 | Nanomaterials in the environment:behavior,fate,bioavailability,and effects显示文摘 | KLAINE S J ALVAREZP J J BATLEY G.E | | 0，，09： | 1 |
| 6 | Capacity choice and allocation:Strategic behavior and supply chain performance显示文摘 | Cachon G.E Lariviere M.A | | 0，，08： | 1 |
| 7 | The impact of direct marketing appeals on charitable marketing effectiveness显示文摘 | Smith G.E Berger P.D | | 0，，24： | 1 |
| 8 | A Model of Technical Inefficiency Effects in Stochastic Frontier Production for Panel Data显示文摘 | Battese G.E T.J.Coelli | | 0，，02： | 1 |
| 9 | In vitro bile acid binding capacity of milled wheat bran and milled extruded wheat bran at five specific mechanical energy levels显示文摘 | Kahlon T.S de J.Berrios J.Smith G.E | | 0，，83： | 1 |
| 10 | Engineering analysis of hazards to life safety in fires: the fire effluent toxicity component显示文摘 | G.E Hartzell | 2001 | Safety Science2001，，2： | 1 |
| 11 | Influence of void formation on impact toughness in rubber modified styrenic-polymers显示文摘 | F Ramsteiner G.E McKee M Breulmann | 2002 | Polymer2002，，： | 1 |
| 12 | Statistical independence and fractional age assumptions(with discussion)显示文摘 | Willmot G.E | | 0，，01： | 1 |
| 13 | Modeling Merchandise Returns in Direct Marketing显示文摘 | Hess J.D Mayhew G.E | | 0，，2： | 1 |
| 14 | The Team-Level Model of Climate for Innovation:A TwoLevel Confirmatory Factor Analysis显示文摘 | Mathisen G.E Torsheim T Einarsen S | | 0，，1： | 1 |
| 15 | Type-B response regulators display overlapping expression patterns in Arabi dopsis显示文摘 | Mason M.G Li J Mathews D.E Kieber J.J Schaller G.E | | 0，，： | 1 |
| 16 | ERC:A Theory of Equity,Reciprocity,and Competition显示文摘 | Bolton G.E Ockenfels A | | 0，，01： | 1 |
| 17 | Multiple type-B response regulators mediate cytokinin signal transduction in Arabidopsis显示文摘 | Mason M.G Mathews D.E Argyros D A Maxwell B.B Kieber J.J Alonso J.M Ecker J.R Schaller G.E | | 0，，： | 1 |
| 18 | Frontier Production Function'Technical Efficiency:A Panel Date With Application to Paddy Farmers in India显示文摘 | Battese G.E Coelli T.J | | 0，，03： | 1 |
| 19 | Nature and nurture:Interaction and coaction显示文摘 | McClearn G.E | | 0，，： | 1 |
| 20 | ErtelGrubin emthods in EHL-A review显示文摘 | Morales-Espejel G.E Wemekamp A.W | | 0，，： | 1 |
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