Evidence map›Paper›PMID 27802173›Full record

ArticleDevelopment (Cambridge, England)2016

Widespread failure to complete meiosis does not impair fecundity in parthenogenetic whiptail lizards.

Aracely A Newton, Robert R Schnittker, Zulin Yu, Sarah S Munday, Diana P Baumann, William B Neaves, Peter Baumann

Open access · hybridAbstract read
In one paragraph

Article in Development (Cambridge, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.5field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Meiotic Chromosome Dynamics in Zebrafish.Frontiers in cell and developmental biology · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 1 institution in 1 country.

Aracely A NewtonStowers Institute for Medical Research, Kansas City, MO 64110, USA.
Robert R SchnittkerStowers Institute for Medical Research, Kansas City, MO 64110, USA.
Zulin YuStowers Institute for Medical Research, Kansas City, MO 64110, USA.
Sarah S MundayStowers Institute for Medical Research, Kansas City, MO 64110, USA.
Diana P BaumannStowers Institute for Medical Research, Kansas City, MO 64110, USA.ORCID 0000-0003-4892-1485
William B NeavesStowers Institute for Medical Research, Kansas City, MO 64110, USA.
Peter BaumannStowers Institute for Medical Research, Kansas City, MO 64110, USA peb@stowers.org.
Stowers Institute for Medical Research · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Parthenogenetic species of whiptail lizards in the genus Aspidoscelis constitute a striking example of speciation by hybridization, in which first-generation hybrids instantly attain reproductive isolation and procreate as clonal all-female lineages. Production of eggs containing a full complement of chromosomes in the absence of fertilization involves genome duplication prior to the meiotic divisions. In these pseudo-tetraploid oocytes, pairing and recombination occur exclusively between identical chromosomes instead of homologs; a deviation from the normal meiotic program that maintains heterozygosity. Whether pseudo-tetraploid cells arise early in germ cell development or just prior to meiosis has remained unclear. We now show that in the obligate parthenogenetic species A. neomexicana the vast majority of oocytes enter meiosis as diploid cells. Telomere bouquet formation is normal, but synapsis fails and oocytes accumulate in large numbers at the pairing stage. Pseudo-tetraploid cells are exceedingly rare in early meiotic prophase, but they are the only cells that progress into diplotene. Despite the widespread failure to increase ploidy prior to entering meiosis, the fecundity of parthenogenetic A. neomexicana is similar to that of A. inornata, one of its bisexual ancestors.

Indexed as

TetraploidyAnimalsChromosome PairingDNAFemaleFertilityLizardsMeiosisOocytesParthenogenesisTelomereDNAAspidoscelisEndoreplicationMeiosisParthenogenesisSynaptonemal complex

Identifiers

PMID27802173
PMCPMC5201048
OpenAlexW2536676278

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.