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Nuclear DNA Amounts of Mulberries (Morus spp.) and Related Species

Japan Agricultural Research Quarterly
ISSN
00213551
NII recode ID (NCID)
AA0068709X
Full text

Mulberries (Morus spp.) include species that are generally diploid but may also occasionally exist in the triploid state (“diploid” species), and others that naturally have different levels of ploidy (“polyploid” species). In the present study, we measured the nuclear DNA amounts in 271 cultivars or strains of 15 mulberry species (nine diploid and six polyploid species) using flow cytometry. A wide range of interspecific 2C DNA values was observed, with the largest being 10.8 times higher than the smallest. Intraspecific differences in 1Cx values, a measure of the monoploid genome size, were within 11% for all species examined. Interspecific variation in 1Cx values was within 28% for all mulberry species in this study. The variation of 1Cx values in polyploid species was larger than that in diploid species. Among the diploid species, the 1Cx values of species native to the Japanese islands were higher than those that originated from East Asia on the Asian continent. The 2C values of other species of Moraceae and Cannabaceae were also estimated, and a wide variation was found.

Date of issued2017-10-02
CreatorHiroaki YAMANOUCHIAkio KOYAMAHiroaki MACHII
Subject

C value

Cx value

polyploid

Moraceae

Cannabaceae

PublisherJapan International Research Center for Agricultural Sciences
Dates2017-10-02
NII resource type vocabularyJournal Article
Volume51
Issue4
spage299
epage307
DOI10.6090/jarq.51.299
RightsJapan International Research Center for Agricultural Sciences
URLJ-STAGE
Languageeng