Details

Autor(en) / Beteiligte

• VAN OOSTRUM, H
• STERK, A. A
• WIJSMAN, H. J. W

Titel

Genetic variation in agamospermous microspecies of Taraxacum sect. Erythrosperma and sect. Obliqua

Ist Teil von

• Heredity, 1985-01, Vol.55 (2), p.223-228

Ort / Verlag

Basingstoke: Nature Publishing

Erscheinungsjahr

1985

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Agamospermous microspecies of Taraxacum have been studied at the isozyme level. T. torilobum and T. rubicundum (sect. Erthrosperma ), both of a fairly broad ecological amplitude, consisted of several clones. In Holland only a few clones occur compared with the situation in Central Europe. By contrast, in T. obliquum (sect. Obliqua ), restricted to the outer dune habitat, no genetic variation could be demonstrated at the Dutch sites sampled. As an explanation for genetic polymorphism in agamospermous taxa either inheritance from sexual ancestors or possible facultative agamospermy is discussed.