Evidence map›Paper›PMID 17395720›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Gene organization of the liverwort Y chromosome reveals distinct sex chromosome evolution in a haploid system.

Katsuyuki T Yamato, Kimitsune Ishizaki, Masaki Fujisawa, Sachiko Okada, Shigeki Nakayama, Mariko Fujishita, Hiroki Bando, Kohei Yodoya, Kiwako Hayashi, Tomoyuki Bando and 24 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 138 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Sex chromosome evolution in haploid plants: Microchromosomes, disappearing chromosomes, and giant chromosomes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Review
  6. Review
  7. Review
  8. Analysis ofFrontiers in plant science · 2024
    Review
  9. Article
  10. Article
  11. The contributions of Nettie Stevens to the field of sex chromosome biology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Evolution of the Proto Sex-Chromosome inInternational journal of molecular sciences · 2019
    Article
  19. AThe EMBO journal · 2019
    Article
  20. Article

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

34 authors at 4 institutions in 3 countries.

Katsuyuki T YamatoLaboratory of Plant Molecular Biology, Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan.
Kimitsune Ishizaki
Masaki Fujisawa
Sachiko Okada
Shigeki Nakayama
Mariko Fujishita
Hiroki Bando
Kohei Yodoya
Kiwako Hayashi
Tomoyuki Bando
Akiko Hasumi
Tomohisa Nishio
Ryoko Sakata
Masayuki Yamamoto
Arata Yamaki
Masataka Kajikawa
Takashi Yamano
Taku Nishide
Seung-Hyuk Choi
Yuu Shimizu-Ueda
Tsutomu Hanajiri
Megumi Sakaida
Kaoru Kono
Mizuki Takenaka
Shohei Yamaoka
Chiaki Kuriyama
Yoshito Kohzu
Hiroyuki Nishida
Axel Brennicke
Tadasu Shin-i
Yuji Kohara
Takayuki Kohchi
Hideya Fukuzawa
Kanji Ohyama
Kyoto University · JPNational Institute of Genetics · JPInstitute of Agrobiological Sciences · JPIshikawa Prefectural University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Y chromosomes are different from other chromosomes because of a lack of recombination. Until now, complete sequence information of Y chromosomes has been available only for some primates, although considerable information is available for other organisms, e.g., several species of Drosophila. Here, we report the gene organization of the Y chromosome in the dioecious liverwort Marchantia polymorpha and provide a detailed view of a Y chromosome in a haploid organism. On the 10-Mb Y chromosome, 64 genes are identified, 14 of which are detected only in the male genome and are expressed in reproductive organs but not in vegetative thalli, suggesting their participation in male reproductive functions. Another 40 genes on the Y chromosome are expressed in thalli and male sexual organs. At least six of these genes have diverged X-linked counterparts that are in turn expressed in thalli and sexual organs in female plants, suggesting that these X- and Y-linked genes have essential cellular functions. These findings indicate that the Y and X chromosomes share the same ancestral autosome and support the prediction that in a haploid organism essential genes on sex chromosomes are more likely to persist than in a diploid organism.

Indexed as

Evolution, MolecularBase SequenceChromosome MappingChromosomes, PlantExpressed Sequence TagsGenes, PlantHaploidyHepatophytaIn Situ Hybridization, FluorescenceMolecular Sequence DataReverse Transcriptase Polymerase Chain ReactionSequence Analysis, DNA

Identifiers

PMID17395720
PMCPMC1851093
OpenAlexW1966551984

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.