Between sexual and apomictic: unexpectedly variable sporogenesis and production of viable polyhaploids in the pentaploid fern of theDryopteris affinisagg. (Dryopteridaceae) | Zendy

Libor Ekrt | Zendy; Petr Koutecký | Zendy

Open Access

Between sexual and apomictic: unexpectedly variable sporogenesis and production of viable polyhaploids in the pentaploid fern of theDryopteris affinisagg. (Dryopteridaceae)

Author(s) -

Libor Ekrt,

Petr Koutecký

Publication year - 2015

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcv152

Subject(s) - sporangium , apomixis , biology , spore , fern , botany , sporophyte , gametophyte , sporogenesis , asexual reproduction , dryopteris , sexual reproduction , ploidy , dryopteridaceae , pollen , genetics , gene

In ferns, apomixis is an important mode of asexual reproduction. Although the mechanisms of fern reproduction have been studied thoroughly, most previous work has focused on cases in which ferns reproduce either exclusively sexually or exclusively asexually. Reproduction of ferns with potentially mixed systems and inheritance of apomixis remains largely unknown. This study addresses reproduction of the pentaploid Dryopteris × critica, a hybrid of triploid apomictic D. borreri and tetraploid sexual D. filix-mas.

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