Ontogenetics of QTL: the genetic architecture of trichome density over time in Arabidopsis thaliana.

摘要: Although much is known about the molecular genetic basis of trichome development in Arabidopsis thaliana, less underlying continuous variation a trait to be adaptive importance: density. The density leaf trichomes major determinant herbivore damage natural populations A. thaliana and herbivores are significant selective force on for A number developmental changes occur during ontogeny including I used multiple interval mapping (MIM) analysis identify QTL responsible both juvenile leaves adult replicate, independent trials asked whether those changed with ontogeny. In leaves, detected single chromosome 2 that explained variance. additional were detected, there no consistent differences architecture measured leaves. finding effect importance suggests genes may play an important role adaptation.