Evidence map›Paper›PMID 18268333›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Extraordinary intraspecific diversity in oyster sperm bindin.

G W Moy, S A Springer, S L Adams, W J Swanson, V D Vacquier

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. 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
11.4field-weighted citation impact, top 1% 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, 98 citations in OpenAlex.

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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

5 authors at 3 institutions in 2 countries.

G W MoyScripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093-0202, USA.
S A Springer
S L Adams
W J Swanson
V D Vacquier
Scripps Institution of Oceanography · USUniversity of Washington · USCawthron Institute · NZ

Funding

BIOCHEMISTRY OF SPERM-EGG INTERACTION AND FERTILIZATIONR37HD012986 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VACQUIER, VICTOR D · 1997 to 2006
$3.1M
Population Genetics of Reproductive Protein DiversityR01HD042563 · NICHD · UNIVERSITY OF WASHINGTON · PI SWANSON, WILLIE J · 2003 to 2010
$2.4M
BIOCHEMISTRY OF SPERM-EGG INTERACTION AND FERTILIZATIONR01HD012986 · NICHD · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI VACQUIER, VICTOR D · 1985 to 1996
–
NICHD NIH HHS HD12986NICHD NIH HHS HD42563NICHD NIH HHS R01 HD042563NICHD NIH HHS R37 HD012986
6 · The paper itself

Abstract

In free-spawning invertebrates sperm-egg incompatibility is a barrier to mating between species, and divergence of gamete recognition proteins (GRPs) can result in reproductive isolation. Of interest are processes that create reproductive protein diversity within species, because intraspecific variants are potentially involved in mate choice and early speciation. Sperm acrosomes of the Pacific oyster Crassostrea gigas contain the protein bindin that bonds sperm to egg during fertilization. Oyster bindin is a single-copy gene encoding a diversity of protein variants. Oyster bindins have a conserved N-terminal region followed by one to five tandem fucose-binding lectin (F-lectin) domains. These repeats have diversified by positive selection at eight sites clustered on the F-lectin's fucose binding face. Additional bindin variants result from recombination in an intron in each F-lectin repeat. Males also express alternatively spliced bindin cDNAs with one to five repeats, but typically translate only one or two isoforms into protein. Thus, positive selection, alternative splicing, and recombination can create thousands of bindin variants within C. gigas. Models of sexual conflict predict high male diversity when females are diverse and sexual conflict is strong. The amount of intraspecific polymorphism in male GRPs may be a consequence of the relative efficiency of local (molecular recognition) and global (electrical, cortical, and physical) polyspermy blocks that operate during fertilization.

Indexed as

Alternative SplicingAmino Acid SequenceAnimalsBlotting, WesternElectrophoresis, Polyacrylamide GelMaleModels, MolecularMolecular Sequence DataOstreidaePolymorphism, GeneticProteinsRecombination, GeneticSequence Homology, Amino AcidSpecies SpecificitySpermatozoaSperm-Ovum InteractionsProteins

Identifiers

PMID18268333
PMCPMC2538870
OpenAlexW2086451201

What OpenQuestion holds

Textmetadata
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.