Anatomy of ovary and ovule in dandelions (Taraxacum, Asteraceae)

Ecological Differentiation among Genotypes of Dandelions (Taraxacum officinale)

We tested for ecological differences among apomictic dandelion genotypes in Vancouver, British Columbia, Canada, in order to establish a basis for predicting potential ecological consequences of genetic variation in invading populations. A greenhouse experiment on 30 potential clonal families revealed significant among-family variation for leaf morphological traits, and molecular analyses confi...

Wood and Bark Anatomy of Scalesia (Asteraceae)

Formation of unreduced megaspores (diplospory) in apomictic dandelions (Taraxacum officinale, s.l.) is controlled by a sex-specific dominant locus.

In apomictic dandelions, Taraxacum officinale, unreduced megaspores are formed via a modified meiotic division (diplospory). The genetic basis of diplospory was investigated in a triploid (3x = 24) mapping population of 61 individuals that segregated approximately 1:1 for diplospory and meiotic reduction. This population was created by crossing a sexual diploid (2x = 16) with a tetraploid diplo...

Beyond orchids and dandelions:

‍Comparative leaf anatomy of the Inula species (Asteraceae: Inuleae) in Iran

The genus Inula L. belongs to tribe Inuleae (Asteraceae) with about 100 species in the world. In this study, leaf in cross section and epidermis in superficial view were studied. Twenty one characters were used for separating the species with an identification key. The most important characters like kind of hairs, shape of epidermal cells on both surfaces, stomata in superficial view and in cro...