title: Comparison of expressed sequence tags from male and female sexual organs of Marchantia polymorpha.
abstract: A total of 935 expressed sequence tags (ESTs) from male immature sexual organ were determined, of which 600 ESTs were assembled into 110 non-redundant groups, resulting in 445 unique EST sequences. Of these, 244 sequences shared significant similarities to known nucleotide or amino acid sequences in other organisms. The remaining 201 unique sequences showed no significant matches and thus are likely to be novel transcripts. ESTs from male and female immature sexual organs of a liverwort, Marchantia polymorpha, were compared to characterize gene expression patterns during sex differentiation. Ninety-nine male ESTs turned out to be common genes found also in the female library. Interestingly, one of the ESTs found only in male shows a significant similarity to the transformer-2 gene involved in sex determination in Drosophila. In female, several unique lectin ESTs were found that are not present in the male library.
authors.affiliation: Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Nishiyama
authors.forename: K T
authors.initials: KT
authors.lastname: Yamato
authors.forename: K
authors.initials: K
authors.lastname: Miura
authors.forename: M
authors.initials: M
authors.lastname: Sakaida
authors.forename: S
authors.initials: S
authors.lastname: Okada
authors.forename: K
authors.initials: K
authors.lastname: Kono
authors.forename: M
authors.initials: M
authors.lastname: Takahama
authors.forename: T
authors.initials: T
authors.lastname: Sone
authors.forename: M
authors.initials: M
authors.lastname: Takenaka
authors.forename: H
authors.initials: H
authors.lastname: Fukuzawa
authors.forename: K
authors.initials: K
authors.lastname: Ohyama
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000460:Chlorophyta / Q000235:genetics*; D020451:Contig Mapping; D018076:DNA, Complementary / Q000378:metabolism; D016208:Databases, Factual; D004330:Drosophila / Q000235:genetics; D029721:Drosophila Proteins; D020224:Expressed Sequence Tags; D015723:Gene Library; D037102:Lectins / Q000235:genetics; D008969:Molecular Sequence Data; D037121:Plant Lectins; D010947:Plants, Toxic; D012261:Ribonucleoproteins / Q000235:genetics; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014026:Nicotiana / Q000235:genetics
chemical_list: D018076:DNA, Complementary; D029721:Drosophila Proteins; D037102:Lectins; D037121:Plant Lectins; D012261:Ribonucleoproteins; C066174:tra2 protein, Drosophila