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Enzyme Electrophoretic Evidence for Diploidy in Japanese Woodwardia japonica (L.f.) Sm. (Blechnaceae, Pteridophyte) with 2 n = 68
Author(s) -
TAKAMIYA MASAYUKI,
YAMAGUCHI SHUJI,
NOKITA HIROYUKI,
ONO KANJI
Publication year - 1994
Publication title -
plant species biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.419
H-Index - 36
eISSN - 1442-1984
pISSN - 0913-557X
DOI - 10.1111/j.1442-1984.1994.tb00077.x
Subject(s) - pteridophyte , japonica , biology , sporophyte , gametophyte , ploidy , karyotype , chromosome number , chromosome , bryophyte , genetics , botany , gene , fern , pollen
Enzyme‐electrophoretic variation was examined in sporophytes of Woodwardia japonica (2 n = 68) and segregation was examined in gametophytes. Despite the high chromosome number, W. japonica displayed disomic segregation of isoenzyme patterns. This and karyotype analyses indicate that W. japonica is a diploid derived from a base number of either x = 17 or x = 34.