start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=3
article-no=
start-page=dsaa012
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200617
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Genome-wide study on the polysomic genetic factors conferring plasticity of flower sexuality in hexaploid persimmon
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sexuality is one of the fundamental mechanisms that work towards maintaining genetic diversity within a species. In diploid persimmons (Diospyros spp.), separated sexuality, the presence of separate male and female individuals (dioecy), is controlled by the Y chromosome-encoded small-RNA gene, OGI. On the other hand, sexuality in hexaploid Oriental persimmon (Diospyros kaki) is more plastic, with OGI-bearing genetically male individuals, able to produce both male and female flowers (monoecy). This is thought to be linked to the partial inactivation of OGI by a retrotransposon insertion, resulting in DNA methylation of the OGI promoter region. To identify the genetic factors regulating branch sexual conversion, genome-wide correlation/association analyses were conducted using ddRAD-Seq data from an F-1 segregating population, and using both quantitative and diploidized genotypes, respectively. We found that allelic ratio at the Y-chromosomal region, including OGI, was correlated with male conversion based on quantitative genotypes, suggesting that OGI can be activated in cis in a dosage-dependent manner. Genome-wide association analysis based on diploidized genotypes, normalized for the effect of OGI allele dosage, detected three fundamental loci associated with male conversion. These loci underlie candidate genes, which could potentially act epigenetically for the activation of OGI expression.
en-copyright=
kn-copyright=

en-aut-name=MasudaKanae
en-aut-sei=Masuda
en-aut-mei=Kanae
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YamamotoEiji
en-aut-sei=Yamamoto
en-aut-mei=Eiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=ShirasawaKenta
en-aut-sei=Shirasawa
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OnoueNoriyuki
en-aut-sei=Onoue
en-aut-mei=Noriyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KonoAtsushi
en-aut-sei=Kono
en-aut-mei=Atsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=UshijimaKoichiro
en-aut-sei=Ushijima
en-aut-mei=Koichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=KuboYasutaka
en-aut-sei=Kubo
en-aut-mei=Yasutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=TaoRyutaro
en-aut-sei=Tao
en-aut-mei=Ryutaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=HenryIsabelle M.
en-aut-sei=Henry
en-aut-mei=Isabelle M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=AkagiTakashi
en-aut-sei=Akagi
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=2
en-affil=Kazusa DNA Research Institute
kn-affil=

affil-num=3
en-affil=Kazusa DNA Research Institute
kn-affil=

affil-num=4
en-affil=Institute of Fruit Tree and Tea Science, NARO
kn-affil=

affil-num=5
en-affil=Institute of Fruit Tree and Tea Science, NARO
kn-affil=

affil-num=6
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=7
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=8
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=

affil-num=9
en-affil=Department of Plant Biology and Genome Center, University of California
kn-affil=

affil-num=10
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
en-keyword=flexible sexuality
kn-keyword=flexible sexuality
en-keyword=monoecy
kn-keyword=monoecy
en-keyword=polyploid
kn-keyword=polyploid
en-keyword=GWAS
kn-keyword=GWAS
END