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Fig. 3.1: Regression lines of siliques, biomass and seed numbers in terms of the percentage of non-clipped plants per pot (CP, dots and red line; NC, circles and dotted blue line) Fig. 3.1: Les régressions linéaires de siliques, biomasse et semences d’après le pourcentage de NC chaque pot (CP, points et ligne rouge ; NC, cercle et ligne bleu) Significant l inear r egression ( Y=6.14+0.32X) w as obs erved f or bi omass ( F=14.11, P=0.0015) only, when the data of all eight plants per pot were summed. Total biomass per pot increased as the percentage of NC among pots increased. Different proportions of clipped leaves The ANOVA showed that clipping leaves, on average, had a s ignificant effect on t he three measures. NC produced more siliques, higher biomass and more seeds (Table 3.3) than CP. No d ifference o ccurred among clipping tr eatments f or a ll p lants. A s ignificant in teraction between treatments and clipping was observed for biomass only. 87
Table 3.2: Parameters of linear regression (Y=A+B*X) between silique number, biomass and seed number for different percentages of NC Tableau 3.2: Paramètres des régressions linéaires (Y=A+B*X) du nom bre de siliques, de la biomasse et du nombre de semences en fonction des différents pourcentages de NC A ± SE B ± SE R 2 F P Silique number NC 36±26 18±9 0.202 3.55 0.080 CP 3±10 9±3 0.401 9.37 0.0085 Biomass NC 7.12±1.46 0.89±0.53 0.166 2.80 0.117 CP 0.78±0.98 1.13±0.26 0.564 18.13 0.0008 Seed number NC 235 ±141 79 ±51 0.144 2.35 0.147 CP 79±78 36±21 0.172 2.91 0.110 Table 3.3: ANOVA results of the effect of clipping (CP) versus not clipping (NC) leaves and of the clipping treatment (proportion of clipped to non-clipped leaves). Tableau 3.3: Résultats de l’ANOVA des effets de couper (CP) ou non ( NC) les feuilles et du traitement de la coupe (la proportion de feuilles coupées et non-coupées) Silique number Biomass Seed number DF F P F P F P CP vs NC 1 19.01
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UNIVERSITE DE BOURGOGNE THÈSE Pour
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REMERCIEMENTS My heartfelt thanks g
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forming many of the ideas I present
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Abstract In the framework of commer
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2.3 A rticle 2: Les r étrocroiseme
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Table 3.2. Parameters of linear reg
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experiment. BC1NS is separated into
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Fig. 4.7. Mean and standard error (
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INTRODUCTION GENERALE Dans le cadre
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chapitre 1 dressant l’état des c
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CHAPTER 1 LITERATURE REVIEW ON THE
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oilseed rape and B. oleracea is ver
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populations is reduced as the dista
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into hybrids would affect the morph
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Snow e t a l. ( 1999) f ound no f i
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1.5 Consequences of introgression I
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more flowers and larger plant size
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Moreover, beside the introgression
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their parental plants. Moon et al.
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2.1 Introduction CHAPTER 2 CONDITIO
Page 41 and 42: ARTICLE 1 The effect of seed size o
Page 43 and 44: plant growth was evaluated without
Page 45 and 46: These two experiments were kept wee
Page 47 and 48: interactions were found among the t
Page 49 and 50: 2006) or m ore f it t han their pa
Page 51 and 52: they b ear b eneficial t ransgenes
Page 53 and 54: Diggle PK, Abrahamson NJ, Baker RL
Page 55 and 56: Ramachandran S , B untin G D, A ll
Page 57 and 58: Table 2.2. F -values f rom a f ive-
Page 59 and 60: Days to flowering Biomass Per. of s
Page 61 and 62: 2.3 Article 2: Les rétrocroisement
Page 63 and 64: Photo.2.3. S praying chlorsulfuron
Page 65 and 66: Introduction In t he f ramework o f
Page 67 and 68: eceived p ollens f rom wild B. j un
Page 69 and 70: Statistical analysis Mean values ar
Page 71 and 72: Characteristics of the backcrosses
Page 73 and 74: Table 2.7. Mean (±95% CL) of plant
Page 75 and 76: plants w ith B. napus morphology t
Page 77 and 78: Productivity of the resistant proge
Page 79 and 80: References [1] A .A. Snow, D .A. A
Page 81 and 82: insight into adaptive life-history
Page 83 and 84: CHAPTER 3 EFFETS DE LA RESISTANCE A
Page 85 and 86: 3.2 A rticle 3 : S imulation d e l
Page 87 and 88: compétition et le devenir des popu
Page 89 and 90: difficult to predict. Similarly, it
Page 91: Table 3.1: ANOVA results of the eff
Page 95 and 96: herbivores than when exposed to Bt
Page 97 and 98: esistant hybrid populations might i
Page 99 and 100: Letourneau D .K., H agen J .A., 200
Page 101 and 102: Germination rate 0.6 0.5 0.4 0.3 0.
Page 103 and 104: 3.3 Article 4: Compétition entre p
Page 105 and 106: Introduction The invasion of transg
Page 107 and 108: Whether a popul ation w ill e volve
Page 109 and 110: while ensuring that the same ratio
Page 111 and 112: silique number, seed number, seed w
Page 113 and 114: Our ga rden e xperiments s howed t
Page 115 and 116: experiment, harsh growth conditions
Page 117 and 118: References Agrawal AA. 2004. R esis
Page 119 and 120: density- dependent c osts of vi ral
Page 121 and 122: Table 3.5. F values of the analysis
Page 123 and 124: Table 3.7. Results of Helmert contr
Page 125 and 126: Fig. 3.4. Examples of experimental
Page 127 and 128: Flowering date Seed weight Biomass
Page 129 and 130: No. viable seeds Biomass 50000 4000
Page 131 and 132: Photo 3.3. Cotton bollworm (Helicov
Page 133 and 134: Introduction Spontaneous introgress
Page 135 and 136: screening as transgenic BC2 (trBC2)
Page 137 and 138: 2002), but certain studies showed n
Page 139 and 140: Acknowledgements We t hank Z hixi T
Page 141 and 142: 92, 368-374. Rieseberg, LH, and Bur
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Table 3.10. F-values of three-way A
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Seed number Biomass 140 120 100 80
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CHAPTER 4 RECHERCHE DES CONSEQUENCE
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Photo 4.1. Wild radish in a herbici
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Introduction Plant divergence is ge
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or t he popul ation of wild r adish
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estimated. All the seeds of every h
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Field experiment Number of siliques
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aphanistrum from hybrids and R. sat
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competition diminished the differen
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Conner, J. K., Rice A. M., Stewart
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Rattenbury J A. 1962. C yclic h ybr
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Fig. 4.1. Four r egions where w ild
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Fig. 4.3. Flower phot os showing pe
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Fig. 4.5. Plot of the first two axe
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Plant weight No. of seeds per plant
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Emergence rate Plant weight No.of a
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CONCLUSION 172
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véritable s uccès ad aptatif d an
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Dans l e cas d es p remières gén
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REFERENCES Abbott RJ, Comes HP.2007
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Bing D J, D owney R K and R akow G
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carinata and Brassica rapa. Plant B
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Hybridisation within Brassica and a
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etween weedy Brassica rapa and oils
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Hybridization between oilseed rape
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Nosil P. 2008. Speciation with gene
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32:305-32 Schadler, M., R. Brandl,
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Thalmann C, Guadagnuolo R, Felber F
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Zheng XM and Ge S. 2010. Ecological
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Therefore, after a review of the st
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more easily sieved out by harvester
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Transgenic F1 produced higher bioma
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