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	<title>pineal gland &#8211; BIOENGINEER.ORG</title>
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		<title>Piranha Pineal Glands Reveal How Ancient Genome Duplication Diversified Fish Light Sensors</title>
		<link>https://bioengineer.org/piranha-pineal-glands-reveal-how-ancient-genome-duplication-diversified-fish-light-sensors/</link>
		
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		<pubDate>Wed, 07 Oct 2026 16:04:01 +0000</pubDate>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[BMC Biology]]></category>
		<category><![CDATA[catfish]]></category>
		<category><![CDATA[cyclic AMP]]></category>
		<category><![CDATA[fluorescence in situ hybridization]]></category>
		<category><![CDATA[G-protein-coupled receptor]]></category>
		<category><![CDATA[Mexican tetra]]></category>
		<category><![CDATA[opsin]]></category>
		<category><![CDATA[parietopsin]]></category>
		<category><![CDATA[photoreception]]></category>
		<category><![CDATA[pineal gland]]></category>
		<category><![CDATA[red piranha]]></category>
		<category><![CDATA[teleost whole-genome duplication]]></category>
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					<description><![CDATA[Researchers have found that the red piranha retains two duplicated parietopsin genes whose proteins absorb similar green light but trigger opposite intracellular signaling pathways, revealing a hidden dimension of opsin diversification after the teleost whole-genome duplication.]]></description>
		
		
		
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