Pollination genetics of hybridization in sympatric populations of Asclepias exaltata and A. syriaca (Asclepiadaceae)
Enzyme electrophoresis of pollinia and seeds was used to identify pollinia on pollinators, interspecific pollinations, and hybrid seed production in sympatric populations of Asclepias exaltata and A. syriaca. The frequency of mixed pollinia loads on pollinators was low. Only 4.1% (N= 169 pollinia) a...
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| Veröffentlicht in: | American journal of botany 1996-12, Vol.83 (12), p.1580-1584 |
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| creator | Broyles, S.B. (State University of New York at Cortland, Cortland, NY.) Vail, C Sherman-Broyles, S.L |
| description | Enzyme electrophoresis of pollinia and seeds was used to identify pollinia on pollinators, interspecific pollinations, and hybrid seed production in sympatric populations of Asclepias exaltata and A. syriaca. The frequency of mixed pollinia loads on pollinators was low. Only 4.1% (N= 169 pollinia) and 8% (N= 244 pollinia) of the pollinia collected from pollinators of A. syriaca and A. exaltata, respectively, were identified as pollinia from the other species. Natural levels of interspecific pollination, 3.6% (N = 166 pollinia) on A. syriaca and 3.1% (N = 228 pollinia) on A. exaltata, were typically lower than the number of foreign pollinia carried by pollinators. Hybrid seeds were identified in only two of 208 A. syriaca fruits and one of 178 A. exaltata fruits. Hybrid seeds were largely underdeveloped in the single A. exaltata fruit. High fruit set (34.7%) and near normal seed set following hand-pollination of A. syriaca with A. exaltata pollinia suggest that hybridization is more likely between these taxa when A. syriaca is the maternal parent. Our findings indicate that the likelihood of hybridization between A. exaltata and A. syriaca is remote. Nevertheless, introgressive hybridization has been documented in these species, which suggests that hybridization remains a strong evolutionary force even for species that infrequently interbreed |
| doi_str_mv | 10.1002/j.1537-2197.1996.tb12816.x |
| format | Article |
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(State University of New York at Cortland, Cortland, NY.) ; Vail, C ; Sherman-Broyles, S.L</creator><creatorcontrib>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.) ; Vail, C ; Sherman-Broyles, S.L</creatorcontrib><description>Enzyme electrophoresis of pollinia and seeds was used to identify pollinia on pollinators, interspecific pollinations, and hybrid seed production in sympatric populations of Asclepias exaltata and A. syriaca. The frequency of mixed pollinia loads on pollinators was low. Only 4.1% (N= 169 pollinia) and 8% (N= 244 pollinia) of the pollinia collected from pollinators of A. syriaca and A. exaltata, respectively, were identified as pollinia from the other species. Natural levels of interspecific pollination, 3.6% (N = 166 pollinia) on A. syriaca and 3.1% (N = 228 pollinia) on A. exaltata, were typically lower than the number of foreign pollinia carried by pollinators. Hybrid seeds were identified in only two of 208 A. syriaca fruits and one of 178 A. exaltata fruits. Hybrid seeds were largely underdeveloped in the single A. exaltata fruit. High fruit set (34.7%) and near normal seed set following hand-pollination of A. syriaca with A. exaltata pollinia suggest that hybridization is more likely between these taxa when A. syriaca is the maternal parent. Our findings indicate that the likelihood of hybridization between A. exaltata and A. syriaca is remote. Nevertheless, introgressive hybridization has been documented in these species, which suggests that hybridization remains a strong evolutionary force even for species that infrequently interbreed</description><identifier>ISSN: 0002-9122</identifier><identifier>EISSN: 1537-2197</identifier><identifier>DOI: 10.1002/j.1537-2197.1996.tb12816.x</identifier><identifier>CODEN: AJBOAA</identifier><language>eng</language><publisher>Columbus: American Botanical Society</publisher><subject>ASCLEPIADACEAE ; Asclepias ; ASCLEPIAS SYRIACA ; Botany ; CROSS POLLINATION ; FRUCTIFICACION ; FRUCTIFICATION ; FRUIT SET ; FRUITING ; FRUITS ; FRUTAS ; Genetic hybridization ; Genetics ; GRAINE ; HIBRIDACION INTERESPECIFICA ; Hybrid seeds ; HYBRIDATION INTERSPECIFIQUE ; Hybridity ; hybridization ; Insect pollination ; INTERSPECIFIC HYBRIDIZATION ; INTROGRESION ; INTROGRESSION ; Plant reproduction ; Plants ; POLEN ; POLINIZACION CRUZADA ; POLINIZADORES ; POLLEN ; Pollinating insects ; Pollination ; POLLINATORS ; Pollinia ; POLLINISATEUR ; POLLINISATION CROISEE ; Reproductive Biology ; reproductive isolation ; SEED SET ; SEEDS ; SEMILLA ; VIRGINIA ; VIRGINIE</subject><ispartof>American journal of botany, 1996-12, Vol.83 (12), p.1580-1584</ispartof><rights>Copyright 1996 Botanical Society of America, Inc.</rights><rights>1996 Botanical Society of America</rights><rights>Copyright Botanical Society of America, Inc. Dec 1996</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2366-5e15b6e3791febb30d8b69c029baf2e7056ac36a4f20358a83680fab692a92d23</citedby><cites>FETCH-LOGICAL-c2366-5e15b6e3791febb30d8b69c029baf2e7056ac36a4f20358a83680fab692a92d23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/2445834$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/2445834$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1417,27924,27925,45574,45575,58017,58250</link.rule.ids></links><search><creatorcontrib>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.)</creatorcontrib><creatorcontrib>Vail, C</creatorcontrib><creatorcontrib>Sherman-Broyles, S.L</creatorcontrib><title>Pollination genetics of hybridization in sympatric populations of Asclepias exaltata and A. syriaca (Asclepiadaceae)</title><title>American journal of botany</title><description>Enzyme electrophoresis of pollinia and seeds was used to identify pollinia on pollinators, interspecific pollinations, and hybrid seed production in sympatric populations of Asclepias exaltata and A. syriaca. The frequency of mixed pollinia loads on pollinators was low. Only 4.1% (N= 169 pollinia) and 8% (N= 244 pollinia) of the pollinia collected from pollinators of A. syriaca and A. exaltata, respectively, were identified as pollinia from the other species. Natural levels of interspecific pollination, 3.6% (N = 166 pollinia) on A. syriaca and 3.1% (N = 228 pollinia) on A. exaltata, were typically lower than the number of foreign pollinia carried by pollinators. Hybrid seeds were identified in only two of 208 A. syriaca fruits and one of 178 A. exaltata fruits. Hybrid seeds were largely underdeveloped in the single A. exaltata fruit. High fruit set (34.7%) and near normal seed set following hand-pollination of A. syriaca with A. exaltata pollinia suggest that hybridization is more likely between these taxa when A. syriaca is the maternal parent. Our findings indicate that the likelihood of hybridization between A. exaltata and A. syriaca is remote. Nevertheless, introgressive hybridization has been documented in these species, which suggests that hybridization remains a strong evolutionary force even for species that infrequently interbreed</description><subject>ASCLEPIADACEAE</subject><subject>Asclepias</subject><subject>ASCLEPIAS SYRIACA</subject><subject>Botany</subject><subject>CROSS POLLINATION</subject><subject>FRUCTIFICACION</subject><subject>FRUCTIFICATION</subject><subject>FRUIT SET</subject><subject>FRUITING</subject><subject>FRUITS</subject><subject>FRUTAS</subject><subject>Genetic hybridization</subject><subject>Genetics</subject><subject>GRAINE</subject><subject>HIBRIDACION INTERESPECIFICA</subject><subject>Hybrid seeds</subject><subject>HYBRIDATION INTERSPECIFIQUE</subject><subject>Hybridity</subject><subject>hybridization</subject><subject>Insect pollination</subject><subject>INTERSPECIFIC HYBRIDIZATION</subject><subject>INTROGRESION</subject><subject>INTROGRESSION</subject><subject>Plant reproduction</subject><subject>Plants</subject><subject>POLEN</subject><subject>POLINIZACION CRUZADA</subject><subject>POLINIZADORES</subject><subject>POLLEN</subject><subject>Pollinating insects</subject><subject>Pollination</subject><subject>POLLINATORS</subject><subject>Pollinia</subject><subject>POLLINISATEUR</subject><subject>POLLINISATION CROISEE</subject><subject>Reproductive Biology</subject><subject>reproductive isolation</subject><subject>SEED SET</subject><subject>SEEDS</subject><subject>SEMILLA</subject><subject>VIRGINIA</subject><subject>VIRGINIE</subject><issn>0002-9122</issn><issn>1537-2197</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNqVkEtP3DAUhS3USp3S_oMiWazKIqkfiROzC6j0IaRWallbN44DjkIcbI-Y6a_HmQD7rnzt851j3YPQKSU5JYR9GXJa8ipjVFY5lVLksaWspiLfHaHNq_QGbUiiM0kZe4fehzCkqywk26D4242jnSBaN-FbM5lodcCux3f71tvO_lsVO-Gwv58heqvx7ObteHg_kE3Qo5ktBGx2MEaIgGHqcJMni7egAX9-QTrQBszZB_S2hzGYj8_nMbq5-vr38nt2_evbj8vmOtOMC5GVhpatMLyStDdty0lXt0JqwmQLPTMVKQVoLqDoGeFlDTUXNekhMQwk6xg_Rqdr7uzdw9aEqAa39VP6UjFa1lVFCpGg8xXS3oXgTa9mb-_B7xUlailZDWppUi1NqqVk9Vyy2iVzs5of7Wj2_-FUzc8LdphTxqc1YwjR-dcMVhRlzYskn6xyD07BrbdB3fxJYcv6Fan5E1bsmHM</recordid><startdate>199612</startdate><enddate>199612</enddate><creator>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.)</creator><creator>Vail, C</creator><creator>Sherman-Broyles, S.L</creator><general>American Botanical Society</general><general>Botanical Society of America, Inc</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope></search><sort><creationdate>199612</creationdate><title>Pollination genetics of hybridization in sympatric populations of Asclepias exaltata and A. syriaca (Asclepiadaceae)</title><author>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.) ; Vail, C ; Sherman-Broyles, S.L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2366-5e15b6e3791febb30d8b69c029baf2e7056ac36a4f20358a83680fab692a92d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>ASCLEPIADACEAE</topic><topic>Asclepias</topic><topic>ASCLEPIAS SYRIACA</topic><topic>Botany</topic><topic>CROSS POLLINATION</topic><topic>FRUCTIFICACION</topic><topic>FRUCTIFICATION</topic><topic>FRUIT SET</topic><topic>FRUITING</topic><topic>FRUITS</topic><topic>FRUTAS</topic><topic>Genetic hybridization</topic><topic>Genetics</topic><topic>GRAINE</topic><topic>HIBRIDACION INTERESPECIFICA</topic><topic>Hybrid seeds</topic><topic>HYBRIDATION INTERSPECIFIQUE</topic><topic>Hybridity</topic><topic>hybridization</topic><topic>Insect pollination</topic><topic>INTERSPECIFIC HYBRIDIZATION</topic><topic>INTROGRESION</topic><topic>INTROGRESSION</topic><topic>Plant reproduction</topic><topic>Plants</topic><topic>POLEN</topic><topic>POLINIZACION CRUZADA</topic><topic>POLINIZADORES</topic><topic>POLLEN</topic><topic>Pollinating insects</topic><topic>Pollination</topic><topic>POLLINATORS</topic><topic>Pollinia</topic><topic>POLLINISATEUR</topic><topic>POLLINISATION CROISEE</topic><topic>Reproductive Biology</topic><topic>reproductive isolation</topic><topic>SEED SET</topic><topic>SEEDS</topic><topic>SEMILLA</topic><topic>VIRGINIA</topic><topic>VIRGINIE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.)</creatorcontrib><creatorcontrib>Vail, C</creatorcontrib><creatorcontrib>Sherman-Broyles, S.L</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><jtitle>American journal of botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Broyles, S.B. (State University of New York at Cortland, Cortland, NY.)</au><au>Vail, C</au><au>Sherman-Broyles, S.L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pollination genetics of hybridization in sympatric populations of Asclepias exaltata and A. syriaca (Asclepiadaceae)</atitle><jtitle>American journal of botany</jtitle><date>1996-12</date><risdate>1996</risdate><volume>83</volume><issue>12</issue><spage>1580</spage><epage>1584</epage><pages>1580-1584</pages><issn>0002-9122</issn><eissn>1537-2197</eissn><coden>AJBOAA</coden><abstract>Enzyme electrophoresis of pollinia and seeds was used to identify pollinia on pollinators, interspecific pollinations, and hybrid seed production in sympatric populations of Asclepias exaltata and A. syriaca. The frequency of mixed pollinia loads on pollinators was low. Only 4.1% (N= 169 pollinia) and 8% (N= 244 pollinia) of the pollinia collected from pollinators of A. syriaca and A. exaltata, respectively, were identified as pollinia from the other species. Natural levels of interspecific pollination, 3.6% (N = 166 pollinia) on A. syriaca and 3.1% (N = 228 pollinia) on A. exaltata, were typically lower than the number of foreign pollinia carried by pollinators. Hybrid seeds were identified in only two of 208 A. syriaca fruits and one of 178 A. exaltata fruits. Hybrid seeds were largely underdeveloped in the single A. exaltata fruit. High fruit set (34.7%) and near normal seed set following hand-pollination of A. syriaca with A. exaltata pollinia suggest that hybridization is more likely between these taxa when A. syriaca is the maternal parent. Our findings indicate that the likelihood of hybridization between A. exaltata and A. syriaca is remote. Nevertheless, introgressive hybridization has been documented in these species, which suggests that hybridization remains a strong evolutionary force even for species that infrequently interbreed</abstract><cop>Columbus</cop><pub>American Botanical Society</pub><doi>10.1002/j.1537-2197.1996.tb12816.x</doi><tpages>5</tpages></addata></record> |
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| ispartof | American journal of botany, 1996-12, Vol.83 (12), p.1580-1584 |
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| source | Wiley HSS Collection; JSTOR |
| subjects | ASCLEPIADACEAE Asclepias ASCLEPIAS SYRIACA Botany CROSS POLLINATION FRUCTIFICACION FRUCTIFICATION FRUIT SET FRUITING FRUITS FRUTAS Genetic hybridization Genetics GRAINE HIBRIDACION INTERESPECIFICA Hybrid seeds HYBRIDATION INTERSPECIFIQUE Hybridity hybridization Insect pollination INTERSPECIFIC HYBRIDIZATION INTROGRESION INTROGRESSION Plant reproduction Plants POLEN POLINIZACION CRUZADA POLINIZADORES POLLEN Pollinating insects Pollination POLLINATORS Pollinia POLLINISATEUR POLLINISATION CROISEE Reproductive Biology reproductive isolation SEED SET SEEDS SEMILLA VIRGINIA VIRGINIE |
| title | Pollination genetics of hybridization in sympatric populations of Asclepias exaltata and A. syriaca (Asclepiadaceae) |
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