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Article

Absence of postzygotic isolating mechanisms: evidence from experimental hybridization between two species of tropical sea urchins.

Journal of Zhejiang University. Science. B - 1 Oct 2012

Rahman M Aminur, Uehara Tsuyoshi, Arshad Aziz, Yusoff Fatimah Md, Shamsudin Mariana Nor

Abstract excerpt

Two reef margin species of tropical sea urchins, Echinometra sp. C (Ec) and Echinometra oblonga (Eo), occur sympatrically on Okinawa intertidal reefs in southern Japan. Hybridization between these species was examined through a series of cross-fertilization experiments. At limited sperm concentrations, where conspecific crosses reached near 100% fertilization, both heterospecific crosses showed high fertilization...

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Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

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Identifiers

PMID: 23024047
DOI: 10.1631/jzus.B1100152
PMCID: PMC3468823

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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