Cytology and mating systems in the climbing cacti Hylocereus and Selenicereus
Chromosome numbers and meiotic behavior are reported for the climbing cacti species Hylocereus undatus, Hylocereus polyrhizus, and Selenicereus megalanthus. The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in po...
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| Veröffentlicht in: | American journal of botany 2000-07, Vol.87 (7), p.1058-1065 |
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| creator | Lichtenzveig, Judith Abbo, Shahal Nerd, Avinoam Tel-Zur, Noemi Mizrahi, Yosef |
| description | Chromosome numbers and meiotic behavior are reported for the climbing cacti species Hylocereus undatus, Hylocereus polyrhizus, and Selenicereus megalanthus. The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in pollen mother cells of S. megalanthus is probably the major cause of its reduced pollen viability and may contribute to low seed set, low number of viable seeds and, consequently, low fruit mass. A pollination study confirmed self-incompatibility in H. polyrhizus and a weakened incompatibility reaction in H. undatus and S. megalanthus. Major crossability barriers do not exist between the Hylocereus spp. investigated. Reciprocal intergeneric crosses were successful between Hylocereus spp. and S. megalanthus, suggesting that an Hylocereus sp. might be one of the diploid progenitors of the tetraploid S. megalanthus. The implications of the results on cacti nomenclature and systematics are briefly discussed. |
| doi_str_mv | 10.2307/2657005 |
| format | Article |
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The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in pollen mother cells of S. megalanthus is probably the major cause of its reduced pollen viability and may contribute to low seed set, low number of viable seeds and, consequently, low fruit mass. A pollination study confirmed self-incompatibility in H. polyrhizus and a weakened incompatibility reaction in H. undatus and S. megalanthus. Major crossability barriers do not exist between the Hylocereus spp. investigated. Reciprocal intergeneric crosses were successful between Hylocereus spp. and S. megalanthus, suggesting that an Hylocereus sp. might be one of the diploid progenitors of the tetraploid S. megalanthus. 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The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in pollen mother cells of S. megalanthus is probably the major cause of its reduced pollen viability and may contribute to low seed set, low number of viable seeds and, consequently, low fruit mass. A pollination study confirmed self-incompatibility in H. polyrhizus and a weakened incompatibility reaction in H. undatus and S. megalanthus. Major crossability barriers do not exist between the Hylocereus spp. investigated. Reciprocal intergeneric crosses were successful between Hylocereus spp. and S. megalanthus, suggesting that an Hylocereus sp. might be one of the diploid progenitors of the tetraploid S. megalanthus. The implications of the results on cacti nomenclature and systematics are briefly discussed.</description><subject>Anaphase</subject><subject>Botany</subject><subject>cacti</subject><subject>Cactus</subject><subject>Cellular biology</subject><subject>Chromosomes</subject><subject>Fruits</subject><subject>Hylocereus</subject><subject>Ovaries</subject><subject>Plant reproduction</subject><subject>Plants</subject><subject>Pollen</subject><subject>Pollen tubes</subject><subject>Pollination</subject><subject>polyploidy</subject><subject>Reproductive Biology</subject><subject>Selenicereus</subject><subject>self‐incompatibility</subject><subject>semi‐sterility</subject><subject>systematics</subject><subject>Viability</subject><issn>0002-9122</issn><issn>1537-2197</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNp1kE1P3DAQhq2qVVloxR9AVcQBTmlnHCe2j8uKj1YgDm3PluN1dr1yEmonivLvCWQFCKknj2ceP2O9hBwjfKcZ8B-0yDlA_oEsMM94SlHyj2QBADSVSOkBOYxxN10lk_QzOUAQUnCRLcjdauxa327GRDfrpNadazZJHGNn65i4Jum2NjHe1eVT32jTueRm9K2xwfbx-c1v623j5sYX8qnSPtqv-_OI_L26_LO6SW_vr3-ulrepYVSIVFRlwRnLK1FmRmMlgSOspUSumQYo5LqwHCUgy0rAvGRQZRrLomDaTAVkR-R89j6E9l9vY6dqF431Xje27aMSnCLleSEn8vQduWv70EyfUxRzIYBRfNWZ0MYYbKUegqt1GBWCespX7fOdyG97XV_Wdv2GmwOdgHQGBuft-D-PWv66oAi5mPiTmd_Frg0v_Ou-s3m8dZvt4IJVsdbeT9tRDcMguOLq2fMIM3OWbw</recordid><startdate>200007</startdate><enddate>200007</enddate><creator>Lichtenzveig, Judith</creator><creator>Abbo, Shahal</creator><creator>Nerd, Avinoam</creator><creator>Tel-Zur, Noemi</creator><creator>Mizrahi, Yosef</creator><general>Botanical Soc America</general><general>Botanical Society of America</general><general>Botanical Society of America, Inc</general><scope>NPM</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><scope>7X8</scope></search><sort><creationdate>200007</creationdate><title>Cytology and mating systems in the climbing cacti Hylocereus and Selenicereus</title><author>Lichtenzveig, Judith ; Abbo, Shahal ; Nerd, Avinoam ; Tel-Zur, Noemi ; Mizrahi, Yosef</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4288-8fb67445f8b3ca1f90710d9917a4a0069d6e7190143b015b40f3a1b664ac3a103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Anaphase</topic><topic>Botany</topic><topic>cacti</topic><topic>Cactus</topic><topic>Cellular biology</topic><topic>Chromosomes</topic><topic>Fruits</topic><topic>Hylocereus</topic><topic>Ovaries</topic><topic>Plant reproduction</topic><topic>Plants</topic><topic>Pollen</topic><topic>Pollen tubes</topic><topic>Pollination</topic><topic>polyploidy</topic><topic>Reproductive Biology</topic><topic>Selenicereus</topic><topic>self‐incompatibility</topic><topic>semi‐sterility</topic><topic>systematics</topic><topic>Viability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lichtenzveig, Judith</creatorcontrib><creatorcontrib>Abbo, Shahal</creatorcontrib><creatorcontrib>Nerd, Avinoam</creatorcontrib><creatorcontrib>Tel-Zur, Noemi</creatorcontrib><creatorcontrib>Mizrahi, Yosef</creatorcontrib><collection>PubMed</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><collection>MEDLINE - Academic</collection><jtitle>American journal of botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lichtenzveig, Judith</au><au>Abbo, Shahal</au><au>Nerd, Avinoam</au><au>Tel-Zur, Noemi</au><au>Mizrahi, Yosef</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cytology and mating systems in the climbing cacti Hylocereus and Selenicereus</atitle><jtitle>American journal of botany</jtitle><addtitle>Am J Bot</addtitle><date>2000-07</date><risdate>2000</risdate><volume>87</volume><issue>7</issue><spage>1058</spage><epage>1065</epage><pages>1058-1065</pages><issn>0002-9122</issn><eissn>1537-2197</eissn><coden>AJBOAA</coden><abstract>Chromosome numbers and meiotic behavior are reported for the climbing cacti species Hylocereus undatus, Hylocereus polyrhizus, and Selenicereus megalanthus. The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in pollen mother cells of S. megalanthus is probably the major cause of its reduced pollen viability and may contribute to low seed set, low number of viable seeds and, consequently, low fruit mass. A pollination study confirmed self-incompatibility in H. polyrhizus and a weakened incompatibility reaction in H. undatus and S. megalanthus. Major crossability barriers do not exist between the Hylocereus spp. investigated. Reciprocal intergeneric crosses were successful between Hylocereus spp. and S. megalanthus, suggesting that an Hylocereus sp. might be one of the diploid progenitors of the tetraploid S. megalanthus. The implications of the results on cacti nomenclature and systematics are briefly discussed.</abstract><cop>United States</cop><pub>Botanical Soc America</pub><pmid>10898783</pmid><doi>10.2307/2657005</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Anaphase Botany cacti Cactus Cellular biology Chromosomes Fruits Hylocereus Ovaries Plant reproduction Plants Pollen Pollen tubes Pollination polyploidy Reproductive Biology Selenicereus self‐incompatibility semi‐sterility systematics Viability |
| title | Cytology and mating systems in the climbing cacti Hylocereus and Selenicereus |
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