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Uniqueness of the Gossypium mustelinum Genome Revealed by GISH and 45S rDNA FISH

Journal of Integrative Plant Biology 2013年第7期55卷 654-662页

作者： Qiong Wu Fang Liu Shaohui Li Guoli Song Chunying Wang Xiangdi Zhang Yuhong Wang david stelly Kunbo Wang Cotton Research Institute the Chinese Academy of Agricultural Sciences/National Key Laboratory of Cotton Biology Haikou Experimental Station Chinese Academy of Tropical Agricultural Sciences Department of Soil and Crop Sciences Texas A&M UniversityCollege Station

Gossypium mustelinum （（AD）4） is one of five disomic species in Gossypium. Three 45S ribosomal DNA （rDNA） loci were detected in （AD）4 with 45S rDNA as probe, and three pairs of brighter signals were detected with genomic DNA （gDNA） of Gossypium D genome species as probes. The size and the location of these brighter signals were the same as those detected with 45S rDNA as probe, and were named GISH-NOR. One of them was super-major, which accounted for the fact that about one-half of its chromosome at metaphase was located at chromosome 3, and other two were minor and located at chromosomes 5 and 9, respectively. All GISH-NORs were located in A sub-genome chromosomes, separate from the other four allopolyploid cotton species. GISH-NOR were detected with D genome species as probe, but not A. The greatly abnormal sizes and sites of （AD）4 NORs or GISH-NORs indicate a possible mechanism for 45S rDNA diversification following （AD）4 speciation. Comparisons of GISH intensities and GISH-NOR production with gDNA probes between A and D genomes show that the better relationship of （AD）4 is with A genome. The shortest two chromosomes of A sub-genome of G. mustelinum were shorter than the longest chromosome of D sub-genome chromosomes. Therefore, the longest 13 chromosomes of tetraploid cotton being classified as A sub-genome, while the shorter 13 chromosomes being classified as D sub-genome in traditional cytogenetic and karyotype analyses may not be entirely correct.

关键词： Chromosomes cotton Gossypium mustelinum in situ hybridization nucleolar organizer region genome.

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Toward Molecular Cytogenetical Characterizations in Cotton Genome

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棉花学报 2008年第S1期20卷 24-页

作者： stelly david Department of Soil and Crop Science Texas A&M University College Station

Cotton is viewed as the most important cash crop in the world,and sustains the agricultural economies of many nations by providing a sustainable fiber product for the textile *** to

关键词： FISH Toward Molecular Cytogenetical Characterizations in Cotton Genome

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Cytogenetics and the Utilization of Gossypium Germplasm

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棉花学报 2002年第S1期14卷 71-71页

作者： david stelly Texas A&M University Department of Soil and Crop Sciences and Institute for Plant Genomics and Biotechnology2123 TAMUCollege StationTX 77843USA

Interspecific introgression contributessignificantly to genetic improvement of cotton(Gossypium hirsutum L.).Cytogenetics hasfigured prominently in the creation ofinterspecific hybrids,synthetic polyploids,backcrosses,and other stocks essential to early-and mid-stage manipulation of germplasm

关键词： Gossypium cotton germplasm stocks chromosome creation alleles manipulation abiotic morphological

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Uniqueness of the Gossypium mustelinum Genome Revealed by GISH and 45S rDNA FISH

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棉花学报 2008年第S1期20卷 110-页

作者： stelly david Department of Soil and Crop Sciences Texas A&M University College Station

Gossypium mustelinum [(AD)4] is one of five tetraploid species in *** pairs of nucleolar organizer regions(NOR) in(AD)4 were detected by FISH with 45S rDNA as a probe,they also were observed with genomic DNA(gDNA) fro... 详细信息

关键词： Gossypium mustelinum cotton in situ hybridization nucleolar organizer region chromosomes genome

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FISHy Analysis of Tetraploid Cotton Species

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棉花学报 2008年第S1期20卷 116-页

作者： stelly david Department of Soil and Crop Sciences Texas A&M University College Station

Fluorescent in situ hybridization(FISH) is an important technique in plant genome research,because it provides integrated information about DNA,chromosomes and *** in situ hybridization(GISH) is a modification of FISH that can be used to rapidly compare genome content,relatedness,organization and/or *** results often provide insight into genome evolution and species *** cotton genus Gossypium consists of about 50 species,including 5

关键词： GISH AD NORs FISHy Analysis of Tetraploid Cotton Species

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Chromosome Substitution Lines:Useful Genomic Resources in Cotton

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棉花学报 2008年第S1期20卷 111-页

作者： SAHA Sukumar JENKINS Johnie N MCARTY Jack C stelly david USDA-ARS Crop Science Research Laboratory P.O.Box 5367 Mississippi State Dept.Soil & Crop Sciences TAMU College Station

The genus Gossypium is a very diverse one with about 50 ***,a very narrow germplasm base is presently being used for genetic improvement of Upland *** wild

关键词： CS

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棉属种质资源的细胞遗传学研究和利用

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棉花学报 2002年第Z1期14卷 71-页

作者： david stelly

　　Interspecific introgression contributes significantly to genetic improvement of cotton ( Gossypium hirsutum L. ). Cytogenetics has figured prominently in the creation of interspecific hybrids, synthetic polyploids,backcrosses, and other stocks essential to earlyand mid-stage manipulation of germplasm at genome-wide and chromosome-specific levels.　　……

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Interspecific Chromosome Substitution Lines as Genetic Resources for Improvement,Trait Analysis and Genomic Inference

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棉花学报 2008年第S1期20卷 84-页

作者： RASKA Dwaine A SAHA Sukumar JENKINS Johnie N MCCARTY Jack C stelly david M Department of Soil and Crop Science Texas A&M University College Station USDA-ARS Crop Science Research Laboratory Mississippi State

The genetic base that cotton breeders commonly use to improve Upland cultivars is very *** AD-genome species Gossypium barbadense,***,and *** are part of

关键词： CS Interspecific Chromosome Substitution Lines as Genetic Resources for Improvement,Trait Analysis and Genomic Inference

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Genome Analysis and Gene Expression Profiling of Fiber Development

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棉花学报 2002年第S1期14卷 49-49页

作者： Z.Jeffrey CHEN Ming-hua MEI Naeem H.SYED Osama S.S.HASSAN david M.stelly Peggy S.THAXTON Department of Soil and Crop Sciences Texas A&M UniversityCollege StationTX 77843-2474USA

The goals of our cotton research program are tounderstand fiber developmental biology andimprove fiber production using molecular andgenomic *** the genome mapping project,we have developed a cotton genetic map using ... 详细信息

关键词：棉纤维发育基因组分析基因表达谱 research program genetic map

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Chromosome Substitution Lines in Cotton Improvement

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棉花学报 2002年第S1期14卷 78-78页

作者： Sukumar SAHA Dwaine A.RASKA Osman A.GUTIéRREZl Johnie N.JENKINS Jack C.McCARTY Jr. Roy G.CANTRELL Richard G.PERCY david M.stelly USDA-ARS Crop Science Research LaboratoryMississippi StateMS 39762 Department of Soil&Crop Sciences Texas A&M UniversityCollege StationTexas 77843-2474 Department of Agronomy and Horticulture 30003Dept.3QNew Mexico State UniversityLas Cruces.NM 88003-8003 USDA-ARS Maricopa Agricultural CenterMacricopaAZ 85239USA

Presently cotton breeders are confronting seriouschallenges due to the extensive use of narrowgenetic base in Upland cotton,*** germplasm that incorporatesnew alleles must be developed to provideimproved genetic poten... 详细信息

关键词：棉花 disease resistance genetic potential Upland cotton

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