Agriculture Reference
In-Depth Information
P
×
goi
t
F 1
×
t
goi
t+goi
BC x
t
goi
t+goi
FIGURE 5.5 ( See color insert. ).Schema.of.the.breeding.program.using. BpMADS4 .trans-
genic. early. lowering. apple. plants. (in. accordance. to. Flachowsky. et.al. 4 ).. t—transgene. (red.
mark),.induces.early.lowering;.goi—gene.of.interest.(yellow.mark),.for.example,.resistance.
gene. for. scab. or. ire. blight. resistance,. green. color—number. of. positive. traits. is. high. (top.
cultivar,.e.g.,.'Pinova',.'Elstar',.'Gala');.brown.color—number.of.negative.unwanted.traits.is.
high.(apple.wild.species.used.as.resistance.donor,.e.g.,. Malus .×. robusta .5.for.ire.blight.resis-
tance);. blue. arrow—genotype. useful. for. further. breeding. steps,. white. arrow—genetically.
improved,. but. nontransgenic. (transgene. and. gene. of. interested. must. be. unlinked. to. obtain.
such. genotypes);. P—parental. generation;. F 1 —irst. ilial. generation,. seedlings. contain. 50%.
genome.(genes/alleles).of.each.parent;.BC′ x —generation.after.numerous.pseudo-backcrosses.
of. 't+goi'. genotypes. by. high-quality. cultivars,. the. percentage. of. wild. species. genome. was.
reduced.by.backcross.breeding.
the. entire. fruit. (Figure. 5.7).. The. functionality. of. the. Agrobacterium . iniltration.
silencing.method.was.conirmed.by.Griesser.et.al., 45 .who.silenced.a.glycosyltrans-
ferase.encoding.gene.( FaGT1 ).in.strawberry.fruits.in.the.same.way..The.method.
published.by.Thomas.Hoffmann.and.colleagues.provides.a.powerful.tool.for.func-
tional.gene.analysis.in.strawberry..The.knowledge.obtained.from.strawberry.can.
then.be.easily.transferred.to.other. Rosaceae .crops,.so.that.strawberry.can.be.used.
as.a.model.species.in.the.future.
d evelopment of n ew S yStemS for Gm f ruIt c rop p roductIon
The.development.of.GM.fruit.crops.in.Europe.is.primarily.based.on. Agrobacterium
tumefaciens . mediated. transformation.. Different. tissues,. such. as. leaf. blades,.
stem internodes,.axillary.shoot-meristems,.cotyledons,.hypocotyl.slices,.or.shoot.
Search WWH ::




Custom Search