Hybridization as a source of evolutionary novelty: leaf shape in a Hawaiian composite
Hybridization is increasingly recognized as a significant creative force in evolution. Interbreeding among species can lead to the creation of novel genotypes and morphologies that lead to adaptation. On the Hawaiian island of O'ahu, populations of two species of plants in the endemic genus Lip...
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| Veröffentlicht in: | Genetica 2005-02, Vol.123 (1-2), p.171-179 |
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| container_title | Genetica |
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| creator | Jørgensen, Stacy Mauricio, Rodney |
| description | Hybridization is increasingly recognized as a significant creative force in evolution. Interbreeding among species can lead to the creation of novel genotypes and morphologies that lead to adaptation. On the Hawaiian island of O'ahu, populations of two species of plants in the endemic genus Lipochaeta grow at similar elevations in the northern Wai'anae Mountains. These two species represent extremes of the phenotypic distribution of leaf shape: the leaves of Lipochaeta tenuifolia individuals are compound and highly dissected while leaves of L. tenuis are simple. Based primarily on leaf shape morphology, a putative hybrid population of Lipochaeta located at Pu'u Kawiwi was identified. Individuals in this population exhibit a range of leaf shapes intermediate in varying degrees between the leaf shapes of the putative parental species. We analyzed individuals from pure populations of L. tenuifolia, L. tenuis and the putative hybrids using 133 AFLP markers. Genetic analysis of these neutral markers provided support for the hybrid origin of this population. The correlation between genetic background and leaf morphology in the hybrids suggested that the genome of the parental species with simple leaves might have significantly contributed to the evolution of a novel, compound leaf morphology. |
| doi_str_mv | 10.1007/s10709-003-2740-2 |
| format | Article |
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Interbreeding among species can lead to the creation of novel genotypes and morphologies that lead to adaptation. On the Hawaiian island of O'ahu, populations of two species of plants in the endemic genus Lipochaeta grow at similar elevations in the northern Wai'anae Mountains. These two species represent extremes of the phenotypic distribution of leaf shape: the leaves of Lipochaeta tenuifolia individuals are compound and highly dissected while leaves of L. tenuis are simple. Based primarily on leaf shape morphology, a putative hybrid population of Lipochaeta located at Pu'u Kawiwi was identified. Individuals in this population exhibit a range of leaf shapes intermediate in varying degrees between the leaf shapes of the putative parental species. We analyzed individuals from pure populations of L. tenuifolia, L. tenuis and the putative hybrids using 133 AFLP markers. Genetic analysis of these neutral markers provided support for the hybrid origin of this population. The correlation between genetic background and leaf morphology in the hybrids suggested that the genome of the parental species with simple leaves might have significantly contributed to the evolution of a novel, compound leaf morphology.</description><identifier>ISSN: 0016-6707</identifier><identifier>EISSN: 1573-6857</identifier><identifier>DOI: 10.1007/s10709-003-2740-2</identifier><identifier>PMID: 15881689</identifier><language>eng</language><publisher>Netherlands: Springer Nature B.V</publisher><subject>Asteraceae - anatomy & histology ; Asteraceae - genetics ; Biological Evolution ; Endemic plants ; Endemic species ; Genetic Markers ; Genetics ; Genotypes ; Hawaii ; Hybridization ; Hybridization, Genetic ; Hybrids ; Leaves ; Lipochaeta ; Lipochaeta tenuifolia ; Mountains ; Plant Leaves - anatomy & histology ; Plant Leaves - genetics ; Plant species</subject><ispartof>Genetica, 2005-02, Vol.123 (1-2), p.171-179</ispartof><rights>Springer 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c389t-d2eec9c238f81cd25afde2b0d6731e01d9fea678184dda872b3060812de393a73</citedby><cites>FETCH-LOGICAL-c389t-d2eec9c238f81cd25afde2b0d6731e01d9fea678184dda872b3060812de393a73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15881689$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jørgensen, Stacy</creatorcontrib><creatorcontrib>Mauricio, Rodney</creatorcontrib><title>Hybridization as a source of evolutionary novelty: leaf shape in a Hawaiian composite</title><title>Genetica</title><addtitle>Genetica</addtitle><description>Hybridization is increasingly recognized as a significant creative force in evolution. 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The correlation between genetic background and leaf morphology in the hybrids suggested that the genome of the parental species with simple leaves might have significantly contributed to the evolution of a novel, compound leaf morphology.</description><subject>Asteraceae - anatomy & histology</subject><subject>Asteraceae - genetics</subject><subject>Biological Evolution</subject><subject>Endemic plants</subject><subject>Endemic species</subject><subject>Genetic Markers</subject><subject>Genetics</subject><subject>Genotypes</subject><subject>Hawaii</subject><subject>Hybridization</subject><subject>Hybridization, Genetic</subject><subject>Hybrids</subject><subject>Leaves</subject><subject>Lipochaeta</subject><subject>Lipochaeta tenuifolia</subject><subject>Mountains</subject><subject>Plant Leaves - anatomy & histology</subject><subject>Plant Leaves - genetics</subject><subject>Plant species</subject><issn>0016-6707</issn><issn>1573-6857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkcGKFDEQhoMo7uzqA3iR4ME9tVYl06nE27KoIyx4cc8h06nGLD2dsdO9Mj69GWZA8KCnOtT3_1D1CfEK4R0C0PuCQOAaAN0oWkOjnogVtqQbY1t6KlYAaBpDQBfispQHAHBk3HNxga21aKxbifvNYTulmH6FOeVRhiKDLHmZOpa5l_yYh-W4CNNBjvmRh_nwQQ4celm-hz3LVCNyE36GlMIou7zb55JmfiGe9WEo_PI8r8T9p4_fbjfN3dfPX25v7ppOWzc3UTF3rlPa9ha7qNrQR1ZbiIY0MmB0PQdDFu06xmBJbTUYsKgia6cD6StxferdT_nHwmX2u1Q6HoYwcl6Kd-26dWrtTCXf_pM0RM6h-j-IpC2SsxV88xf4UP821nM9GV0p1UKF8AR1Uy5l4t7vp7Sr3_QI_ujQnxz66tAfHXpVM6_Pxct2x_FP4ixN_wYlDpac</recordid><startdate>200502</startdate><enddate>200502</enddate><creator>Jørgensen, Stacy</creator><creator>Mauricio, Rodney</creator><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QL</scope><scope>7SN</scope><scope>7SS</scope><scope>7T7</scope><scope>7TK</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>200502</creationdate><title>Hybridization as a source of evolutionary novelty: leaf shape in a Hawaiian composite</title><author>Jørgensen, Stacy ; 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Interbreeding among species can lead to the creation of novel genotypes and morphologies that lead to adaptation. On the Hawaiian island of O'ahu, populations of two species of plants in the endemic genus Lipochaeta grow at similar elevations in the northern Wai'anae Mountains. These two species represent extremes of the phenotypic distribution of leaf shape: the leaves of Lipochaeta tenuifolia individuals are compound and highly dissected while leaves of L. tenuis are simple. Based primarily on leaf shape morphology, a putative hybrid population of Lipochaeta located at Pu'u Kawiwi was identified. Individuals in this population exhibit a range of leaf shapes intermediate in varying degrees between the leaf shapes of the putative parental species. We analyzed individuals from pure populations of L. tenuifolia, L. tenuis and the putative hybrids using 133 AFLP markers. Genetic analysis of these neutral markers provided support for the hybrid origin of this population. 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| subjects | Asteraceae - anatomy & histology Asteraceae - genetics Biological Evolution Endemic plants Endemic species Genetic Markers Genetics Genotypes Hawaii Hybridization Hybridization, Genetic Hybrids Leaves Lipochaeta Lipochaeta tenuifolia Mountains Plant Leaves - anatomy & histology Plant Leaves - genetics Plant species |
| title | Hybridization as a source of evolutionary novelty: leaf shape in a Hawaiian composite |
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