Show simple item record

dc.contributor.authorBrodie, Juliet
dc.contributor.authorGuiry, Michael D.
dc.contributor.authorMasuda, Michio
dc.date.accessioned2018-08-24T08:24:12Z
dc.date.available2018-08-24T08:24:12Z
dc.date.issued1993-08-01
dc.identifier.citationBrodie, Juliet; Guiry, Michael D. Masuda, Michio (1993). Life history, morphology and crossability ofchondrus ocellatusformaocellatusandc. ocellatusformacrispoides(gigartinales, rhodophyta) from the north-western pacific. European Journal of Phycology 28 (3), 183-196
dc.identifier.issn0967-0262,1469-4433
dc.identifier.urihttp://hdl.handle.net/10379/8904
dc.description.abstractThe morphology, life histories and crossability in culture are described for the marine red algae Chondrus ocellatus Holmes forma ocellatus from Japan, China and Korea and C. ocellatus f. crispoides Mikami (Gigartinaceae, Rhodophyta) from Japan. In culture, all isolates of both formae showed a Polysiphonia-type life history typical of the family Gigartinaceae. Plants of C. ocellatus f. ocellatus from Korea and China and some strains from Japan formed gametangia under long-day conditions (LD) at 15-degrees-C; however, two other Japanese strains required short-day conditions (SD) at 15-degrees-C for gametogenesis, indicating a photoperiodic response. Plants of C. ocellatus f. crispoides did not require SD for gamete formation. In all strains, tetrasporophytes of both formae produced tetrasporangia under LD. Isolates of C. ocellatus f. ocellatus from Japan, China and Korea were found to be completely sexually compatible regardless of photoperiodic characteristics, and the responses to daylength shown by progeny of LD and SD strains suggested Mendelian inheritance of a daylength factor. Chondrus ocellatus f. ocellatus was sexually incompatible with C. nipponicus Yendo, a morphologically similar species from Japan, but C. ocellatus f. crispoides was partially interfertile with both C. ocellatus f. ocellatus and C. nipponicus, indicating that the three entities are closely related. In view of the apparently higher breeding compatibility between C. nipponicus and C. ocellatus f. crispoides, and the fact that these two entities are more similar morphologically and reproductively, it is proposed, provisionally, to refer C. ocellatus forma crispoides to C. nipponicus.
dc.publisherInforma UK Limited
dc.relation.ispartofEuropean Journal of Phycology
dc.subjectchondrus
dc.subjectchondrus-nipponicus
dc.subjectchondrus-ocellatus forma ocellatus
dc.subjectchondrus-ocellatus forma crispoides
dc.subjectcrossability
dc.subjectlife history
dc.subjectmorphology
dc.subjectreproduction
dc.subjectatlantic
dc.subjectcrispus
dc.subjectireland
dc.titleLife history, morphology and crossability ofchondrus ocellatusformaocellatusandc. ocellatusformacrispoides(gigartinales, rhodophyta) from the north-western pacific
dc.typeArticle
dc.identifier.doi10.1080/09670269300650281
dc.local.publishedsourcehttp://www.tandfonline.com/doi/pdf/10.1080/09670269300650281?needAccess=true
nui.item.downloads0


Files in this item

This item appears in the following Collection(s)

Show simple item record