Electrophoretic and cytological evidence for genetic heterogeneity and the hybrid origin of Athyrium oblitescens [Ferns]
Athyrium oblitescens, a putative hybrid species, was examined electrophoretically and cytologically to clarify its origin. Allozyme data showed that A. oblitescens consisted of at least three allozyme types, designated Type C, Type O and Type W. Genotypic compositions of Type C and Type W suggested...
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Veröffentlicht in: | Journal of plant research 1996, Vol.109 (1093), p.29-36 |
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description | Athyrium oblitescens, a putative hybrid species, was examined electrophoretically and cytologically to clarify its origin. Allozyme data showed that A. oblitescens consisted of at least three allozyme types, designated Type C, Type O and Type W. Genotypic compositions of Type C and Type W suggested that they were derived from independent hybridizations between A. otophorum and A. clivicola and between A. otophorum and A. wardii, respectively. Contrary to previous reports of tetraploidy in A. oblitescens and its hypothesized parent species, cytological observation revealed that Type C and Type W were both hexaploids. Possible pathways for the origin of these hexaploids are proposed. Type O was not genetically distinct from A. otophorum by either electrophoretic or cytological analyses, and thus there was no evidence of hybrid origin. |
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(Japan). Faculty of Science</creatorcontrib><description>Athyrium oblitescens, a putative hybrid species, was examined electrophoretically and cytologically to clarify its origin. Allozyme data showed that A. oblitescens consisted of at least three allozyme types, designated Type C, Type O and Type W. Genotypic compositions of Type C and Type W suggested that they were derived from independent hybridizations between A. otophorum and A. clivicola and between A. otophorum and A. wardii, respectively. Contrary to previous reports of tetraploidy in A. oblitescens and its hypothesized parent species, cytological observation revealed that Type C and Type W were both hexaploids. Possible pathways for the origin of these hexaploids are proposed. Type O was not genetically distinct from A. otophorum by either electrophoretic or cytological analyses, and thus there was no evidence of hybrid origin.</description><identifier>ISSN: 0918-9440</identifier><identifier>EISSN: 1618-0860</identifier><identifier>DOI: 10.1007/BF02344284</identifier><language>eng</language><subject>analisis enzimatico ; analisis histocitologico ; analyse enzymatique ; analyse histocytologique ; chromosome number ; distance genetique ; distancia genetica ; electroforesis ; electrophorese ; electrophoresis ; enzymatic analysis ; ferns ; fougere ; genetic distance ; genetic variation ; helechos ; histocytological analysis ; nombre chromosomique ; numero de cromosomas ; variacion genetica ; variation genetique</subject><ispartof>Journal of plant research, 1996, Vol.109 (1093), p.29-36</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Kurihara, T</creatorcontrib><creatorcontrib>Watano, Y</creatorcontrib><creatorcontrib>Takamiya, M</creatorcontrib><creatorcontrib>Shimizu, T</creatorcontrib><creatorcontrib>Kanazawa Univ. (Japan). Faculty of Science</creatorcontrib><title>Electrophoretic and cytological evidence for genetic heterogeneity and the hybrid origin of Athyrium oblitescens [Ferns]</title><title>Journal of plant research</title><description>Athyrium oblitescens, a putative hybrid species, was examined electrophoretically and cytologically to clarify its origin. Allozyme data showed that A. oblitescens consisted of at least three allozyme types, designated Type C, Type O and Type W. Genotypic compositions of Type C and Type W suggested that they were derived from independent hybridizations between A. otophorum and A. clivicola and between A. otophorum and A. wardii, respectively. Contrary to previous reports of tetraploidy in A. oblitescens and its hypothesized parent species, cytological observation revealed that Type C and Type W were both hexaploids. Possible pathways for the origin of these hexaploids are proposed. Type O was not genetically distinct from A. otophorum by either electrophoretic or cytological analyses, and thus there was no evidence of hybrid origin.</description><subject>analisis enzimatico</subject><subject>analisis histocitologico</subject><subject>analyse enzymatique</subject><subject>analyse histocytologique</subject><subject>chromosome number</subject><subject>distance genetique</subject><subject>distancia genetica</subject><subject>electroforesis</subject><subject>electrophorese</subject><subject>electrophoresis</subject><subject>enzymatic analysis</subject><subject>ferns</subject><subject>fougere</subject><subject>genetic distance</subject><subject>genetic variation</subject><subject>helechos</subject><subject>histocytological analysis</subject><subject>nombre chromosomique</subject><subject>numero de cromosomas</subject><subject>variacion genetica</subject><subject>variation genetique</subject><issn>0918-9440</issn><issn>1618-0860</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNotjj1PwzAYhC0EEqWw8AOQJ7aAHTuJPZaq5UOVYIAJocixXydGaVxsF5F_T2mZ7k567nQIXVJyQwmpbu-WJGec54IfoQktqciIKMkxmhC585JzcorOYvwkhFaFFBP0s-hBp-A3nQ-QnMZqMFiPyfe-dVr1GL6dgUEDtj7gFoY91EGC4P-SS-O-kjrA3dgEZ7APrnUD9hbPUjcGt11j3_QuQdQwRPy-hDDEj3N0YlUf4eJfp-htuXidP2Sr5_vH-WyV2ZzlKSuFNMpQayRXJS2ZltDIAhpgmqqqYDY3TFBqFC1NIYxmSkhuG2EIkLwCzqbo-rC7Cf5rCzHVa7c70vdqAL-NNS1KIoqc7sCrA2iVr1UbXKyfXqiUFaGcVSVjv4UlasE</recordid><startdate>1996</startdate><enddate>1996</enddate><creator>Kurihara, T</creator><creator>Watano, Y</creator><creator>Takamiya, M</creator><creator>Shimizu, T</creator><scope>FBQ</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope></search><sort><creationdate>1996</creationdate><title>Electrophoretic and cytological evidence for genetic heterogeneity and the hybrid origin of Athyrium oblitescens [Ferns]</title><author>Kurihara, T ; Watano, Y ; Takamiya, M ; Shimizu, T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f232t-689dad1fd94a6163c9eb95ebe3c1a753f2d3811da16d58dc3a894fb8d0e027e43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>analisis enzimatico</topic><topic>analisis histocitologico</topic><topic>analyse enzymatique</topic><topic>analyse histocytologique</topic><topic>chromosome number</topic><topic>distance genetique</topic><topic>distancia genetica</topic><topic>electroforesis</topic><topic>electrophorese</topic><topic>electrophoresis</topic><topic>enzymatic analysis</topic><topic>ferns</topic><topic>fougere</topic><topic>genetic distance</topic><topic>genetic variation</topic><topic>helechos</topic><topic>histocytological analysis</topic><topic>nombre chromosomique</topic><topic>numero de cromosomas</topic><topic>variacion genetica</topic><topic>variation genetique</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kurihara, T</creatorcontrib><creatorcontrib>Watano, Y</creatorcontrib><creatorcontrib>Takamiya, M</creatorcontrib><creatorcontrib>Shimizu, T</creatorcontrib><creatorcontrib>Kanazawa Univ. (Japan). Faculty of Science</creatorcontrib><collection>AGRIS</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Journal of plant research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kurihara, T</au><au>Watano, Y</au><au>Takamiya, M</au><au>Shimizu, T</au><aucorp>Kanazawa Univ. (Japan). Faculty of Science</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrophoretic and cytological evidence for genetic heterogeneity and the hybrid origin of Athyrium oblitescens [Ferns]</atitle><jtitle>Journal of plant research</jtitle><date>1996</date><risdate>1996</risdate><volume>109</volume><issue>1093</issue><spage>29</spage><epage>36</epage><pages>29-36</pages><issn>0918-9440</issn><eissn>1618-0860</eissn><abstract>Athyrium oblitescens, a putative hybrid species, was examined electrophoretically and cytologically to clarify its origin. Allozyme data showed that A. oblitescens consisted of at least three allozyme types, designated Type C, Type O and Type W. Genotypic compositions of Type C and Type W suggested that they were derived from independent hybridizations between A. otophorum and A. clivicola and between A. otophorum and A. wardii, respectively. Contrary to previous reports of tetraploidy in A. oblitescens and its hypothesized parent species, cytological observation revealed that Type C and Type W were both hexaploids. Possible pathways for the origin of these hexaploids are proposed. Type O was not genetically distinct from A. otophorum by either electrophoretic or cytological analyses, and thus there was no evidence of hybrid origin.</abstract><doi>10.1007/BF02344284</doi><tpages>8</tpages></addata></record> |
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subjects | analisis enzimatico analisis histocitologico analyse enzymatique analyse histocytologique chromosome number distance genetique distancia genetica electroforesis electrophorese electrophoresis enzymatic analysis ferns fougere genetic distance genetic variation helechos histocytological analysis nombre chromosomique numero de cromosomas variacion genetica variation genetique |
title | Electrophoretic and cytological evidence for genetic heterogeneity and the hybrid origin of Athyrium oblitescens [Ferns] |
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