Transcriptional signatures of ancient floral developmental genetics in avocado (Persea americana; Lauraceae).

ABSTRACT: The debate on the origin and evolution of flowers has recently entered the field of developmental genetics, with focus on the design of the ancestral floral regulatory program. Flowers can differ dramatically among angiosperm lineages, but in general, male and female reproductive organs surrounded by a sterile perianth of sepals and petals constitute the basic floral structure. However, the basal angiosperm lineages exhibit spectacular diversity in the number, arrangement, and structure of floral organs, whereas the evolutionarily derived monocot and eudicot lineages share a far more uniform floral ground plan. Here we show that broadly overlapping transcriptional programs characterize the floral transcriptome of the basal angiosperm Persea americana (avocado), whereas floral gene expressi

SUBMITTER: Chanderbali AS 

PROVIDER: S-EPMC2683881 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature