Dissertation > Excellent graduate degree dissertation topics show

Analysis on the Inheritance of Maintainer Lines of Self-incompatibility and Development of Its Molecular Marker in Brassica Napus L.

Author: LiChunYan
Tutor: MaChaoZhi
School: Huazhong Agricultural University
Course: Crop Genetics and Breeding
Keywords: Brassica napus Self-incompatibility and the Department of Maintainer line AFLP Molecular markers
CLC: S565.4
Type: Master's thesis
Year: 2006
Downloads: 235
Quote: 3
Read: Download Dissertation

Abstract


Self-incompatibility is widespread in the plant kingdom, causing widespread concern of botanists and molecular biologists, it is conducive to plant genetic evolution, to expand the extent of variation in breeding higher, especially in the heterosis has an important role, is an important way to utilize the heterosis. Many studies have shown that plant self-incompatibility is determined by the S-locus has been isolated from a variety of S gene and its expression product. In recent years, studies show that in addition to the S gene outside and plant self-incompatibility related genes, such as ARC1, SLR, aquaporin THL1/THL2 MLPK, especially of MLPK gene-depth study : it is self-incompatible and signal transduction, and the S gene independent, jointly controlled self-incompatibility. Was also suggested that there is a self-incompatibility and genetic suppressor genes and self-incompatibility and genetic interactions jointly controlled self-incompatibility. Therefore, the self-incompatibility and the molecular mechanisms and genetic laws are very complex. In this paper, Brassica napus self-incompatibility system SI1300 Pro Paul 89008 and 91806 for the material, the two aspects of the research. 1. Brassica napus self-incompatible line and its maintainer line genetic law of self incompatibility system SI1300 and temporary maintainer line 89008 do parent build F 1 groups (SI1300 89008) groups, the F 2 groups (SI1300 × 89008 Inbred) the two BC 1 groups [BC parent : (SI1300 × 89008 ) × 89008 and BC ,, mother groups: (the SI1300 x 89008) x SI1300] and their progeny segregating population. This study investigated the separation of the groups: the F 2 groups, SI / SC = 9/7; BC parent groups in the SI / SC = 1/1; BC mother the groups SI / SC = 3/1, and F 2 groups segregating populations SC groups selfing SI plant predecessors mention genetic model can not explain the last two results. Therefore, this study proposes a new genetic model: Brassica napus self-incompatibility has two pairs of independent genetic control, one pair of self-incompatibility gene (S gene) of self-incompatibility and genetic suppressor gene (SP genes) are present in the S-locus and Sp locus alleles and allele was dominant. According to this theory, it is assumed that the materials used self-incompatible lines SI1300 genotype: S 1 S 1 Sp 1 Sp 1 self-incompatibility and the Department of provisional protection system to genotype: S 2 S 2 Sp 2 Sp < sub> 2 , S 1 , S 2 are self-incompatibility genes, Sp 1 , Sp 2 are self-incompatibility gene suppressor gene. And S to 2 S 1 is dominant, Sp 1 can inhibit S 2 but can not suppress S 1 : Sp 2 the the S 1 S 2 are a disincentive; When SP 1 the Sp 2 exist at the same time can not afford to inhibition. 2. The Brassica napus self-incompatibility and the development of the Department of Molecular Markers to self-incompatibility system SI1300 and temporary maintainer line 91806 F hybrid parents on behalf of the Pro maintainer line 91806 backcross ( 91806 recurrent parent, every generation option the SI strains backcross) get backcross population (BC 7 ) election the BC 7 group incompatibility and individual stripping Lei selfing, planting stripping bud selfing the resulting seed lent selfing (BC 7 F 2 ). BC 7 F 2 groups in the selection of an extreme affinity with extreme affinity monoclonal build the two affinity pool with two incompatibility pool, with 4 pools screening AFLP primer 1380 pairs, the development of three AFLP markers for marker-assisted selection breeding laid a solid foundation. In this paper, the self-incompatibility explain Brassica napus new genetic model for the self-incompatibility and left

Related Dissertations

  1. Genetic Diversity Analyses of Sillago Sihama Using AFLP Marker,S917.4
  2. Identification of Cyto-and Molecular Genetics of Multisomic Addition Line "Nj08-063" in Brassica Napus and Its Agronomical Traits,S565.4
  3. Functional Analysis of an Sclerotinia Disease Resistance Gene,S435.654
  4. Studies on the Life Cycle and Classification of Agrocybe Salicacola,S646
  5. Preliminary Studies on 4 EMS-Induced Mutants in Brassica Napus L,S565.4
  6. Studies on Extracting Mitochondrial DNA and Gene Expressions in Brassica Napus L,S565.4
  7. Studies on Screening in Progeny Population of Distant Hybridization between Brassica Napus L. and Descurainia Sophia,S565.4
  8. Preliminary Studies on Constructing Brassica Napus L Mutant Library by EMS Inducement,S565.4
  9. Allocation and Molecular Markers of a Powdery Mildew Resistance Locus to the Chromosome 6R of Secale Cereale L. CV. ’Jingzhouheimai’,S512.1
  10. Anatomy of Root, Stem and Its Lignin Content and Expression of Related Key Genes in Lignin Synthesis of Lodging Resistant Brassica Napus L.,S565.4
  11. Analysis of Difference in Oil and Fatty Acids Accumulation in Developing Seeds of Brassica Napus L. from Various Altitude Localities,S565.4
  12. The cDNA-AFLP Analysis of Gene Differential Expression and RNA Editing of ATP6 Gene between Cytoplasmic Male Sterile Lines and Their Maintainer Lines in Soybean (Glycine max (L.) Merrill),S565.1
  13. Fine Mapping of Two Leaf Mutant Genes al and yl in Maize,S513
  14. Salt-Tolerance Evaluation of Brassica Napus Germplasm in the Bud and Seeding and Establishment of the Two-Dimensional Electrophoresis System,S565.4
  15. Studies on Cytoplasmic Male Sterility and Restoration in Cotton (Gossypium Hirsutum L.),S562
  16. Screening of Markers Related to TYLCV Resistance and Research on Pyramiding Resistance in Marker-Assisted Selection in Tomato,S641.2
  17. Study on Fitness of Backcross Generations between Glyphosate-Resistant Transgenic Oilseed Rape and Four Geographic Populations of Wild Brassica Juncea,S565.4
  18. Development of SSR and AFLP Markers about Panax Ginseng,S567.51
  19. Effects and Mechanism of Exasa on the Growth of Rapeseed Exposed to CD,S565.4
  20. Flanking Sequences of Maize DNA in the Study of Rice Mutant,S511
  21. AFLP Analysis of Rice with Aerial-Root and High-Pole,S511

CLC: > Agricultural Sciences > Crop > Economic crops > Oil crops > Rapeseed ( Brassica )
© 2012 www.DissertationTopic.Net  Mobile