Evidence map›Paper›PMID 25026970›Full record

ArticleHeredity2015

Evolution of apomixis loci in Pilosella and Hieracium (Asteraceae) inferred from the conservation of apomixis-linked markers in natural and experimental populations.

M L Hand, P Vít, A Krahulcová, S D Johnson, K Oelkers, H Siddons, J Chrtek, J Fehrer, A M G Koltunow

Open access · bronzeAbstract read
In one paragraph

Article in Heredity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
8.9field-weighted citation impact, top 3% 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

22 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Preliminary Review of the Diploid Taxa inPlants (Basel, Switzerland) · 2025
    Review
  4. Recent Progress on Plant Apomixis for Genetic Improvement.International journal of molecular sciences · 2024
    Review
  5. Review
  6. Article
  7. A Multigene Phylogeny of Native American Hawkweeds (Plants (Basel, Switzerland) · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. TheFrontiers in plant science · 2019
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Seeds of doubt: Mendel's choice of Hieracium to study inheritance, a case of right plant, wrong trait.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2016
    Review
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

9 authors at 4 institutions in 2 countries.

M L HandCommonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Waite Campus, Glen Osmond, SA, Australia.
P VítInstitute of Botany, Academy of Sciences of the Czech Republic, Zámek 1, Průhonice, Czech Republic.
A KrahulcováInstitute of Botany, Academy of Sciences of the Czech Republic, Zámek 1, Průhonice, Czech Republic.
S D JohnsonCommonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Waite Campus, Glen Osmond, SA, Australia.
K OelkersCommonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Waite Campus, Glen Osmond, SA, Australia.
H SiddonsCommonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Waite Campus, Glen Osmond, SA, Australia.
J Chrtek1] Institute of Botany, Academy of Sciences of the Czech Republic, Zámek 1, Průhonice, Czech Republic [2] Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, Prague, Czech Republic.
J FehrerInstitute of Botany, Academy of Sciences of the Czech Republic, Zámek 1, Průhonice, Czech Republic.
A M G KoltunowCommonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Waite Campus, Glen Osmond, SA, Australia.
Commonwealth Scientific and Industrial Research Organisation · AUCzech Academy of Sciences, Institute of Botany · CZCzech Academy of Sciences · CZPlant Industry · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Hieracium and Pilosella (Lactuceae, Asteraceae) genera of closely related hawkweeds contain species with two different modes of gametophytic apomixis (asexual seed formation). Both genera contain polyploid species, and in wild populations, sexual and apomictic species co-exist. Apomixis is known to co-exist with sexuality in apomictic Pilosella individuals, however, apomictic Hieracium have been regarded as obligate apomicts. Here, a developmental analysis of apomixis within 16 Hieracium species revealed meiosis and megaspore tetrad formation in 1 to 7% of ovules, for the first time indicating residual sexuality in this genus. Molecular markers linked to the two independent, dominant loci LOSS OF APOMEIOSIS (LOA) and LOSS OF PARTHENOGENESIS (LOP) controlling apomixis in Pilosella piloselloides subsp. praealta were screened across 20 phenotyped Hieracium individuals from natural populations, and 65 phenotyped Pilosella individuals from natural and experimental cross populations, to examine their conservation, inheritance and association with reproductive modes. All of the tested LOA and LOP-linked markers were absent in the 20 Hieracium samples irrespective of their reproductive mode. Within Pilosella, LOA and LOP-linked markers were essentially absent within the sexual plants, although they were not conserved in all apomictic individuals. Both loci appeared to be inherited independently, and evidence for additional genetic factors influencing quantitative expression of LOA and LOP was obtained. Collectively, these data suggest independent evolution of apomixis in Hieracium and Pilosella and are discussed with respect to current knowledge of the evolution of apomixis.

Indexed as

Biological EvolutionGenes, PlantGenetic LociApomixisAsteraceaeConserved SequenceDNA, ChloroplastDNA, PlantGene Expression Regulation, PlantGenetic MarkersGenetics, PopulationHaplotypesInheritance PatternsMolecular Sequence DataSeedsDNA, ChloroplastDNA, PlantGenetic Markers

Identifiers

PMID25026970
PMCPMC4815591
OpenAlexW1988872700

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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.