Translocation heterozygosity and sex ratio in Viscum fischeri
Summary Male plants of V. fischeri have 2n = 23 and constantly produce seven bivalents and a multivalent chain of nine chromosomes at meiosis. Regular assortment results in transmission of 11- and 12-chromosome genomes via the pollen. Female plants have the chromosome number 2n = 22 and are homozygo...
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| Veröffentlicht in: | Heredity 1976-08, Vol.37 (1), p.27-40 |
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| container_title | Heredity |
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| creator | Barlow, B A Wiens, D |
| description | Summary
Male plants of
V. fischeri
have
2n
= 23 and constantly produce seven bivalents and a multivalent chain of nine chromosomes at meiosis. Regular assortment results in transmission of 11- and 12-chromosome genomes via the pollen. Female plants have the chromosome number
2n
= 22 and are homozygous for the 11-chromosome genome. The multivalent chain in the males is a consequence of reciprocal translocations, one of which was Robertsonian and one of which involved the chromosome carrying the sex determination factors. There is a constant female-predominant sex ratio of approximately 1:2 in
V. fischeri
, possibly maintained by gamete selection; the genes involved may have been linked with the sex determination mechanism through the translocation system. |
| doi_str_mv | 10.1038/hdy.1976.63 |
| format | Article |
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Male plants of
V. fischeri
have
2n
= 23 and constantly produce seven bivalents and a multivalent chain of nine chromosomes at meiosis. Regular assortment results in transmission of 11- and 12-chromosome genomes via the pollen. Female plants have the chromosome number
2n
= 22 and are homozygous for the 11-chromosome genome. The multivalent chain in the males is a consequence of reciprocal translocations, one of which was Robertsonian and one of which involved the chromosome carrying the sex determination factors. There is a constant female-predominant sex ratio of approximately 1:2 in
V. fischeri
, possibly maintained by gamete selection; the genes involved may have been linked with the sex determination mechanism through the translocation system.</description><identifier>ISSN: 0018-067X</identifier><identifier>EISSN: 1365-2540</identifier><identifier>DOI: 10.1038/hdy.1976.63</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Biomedical and Life Sciences ; Biomedicine ; Cytogenetics ; Ecology ; Evolutionary Biology ; Human Genetics ; original-article ; Plant Genetics and Genomics</subject><ispartof>Heredity, 1976-08, Vol.37 (1), p.27-40</ispartof><rights>The Genetical Society of Great Britain 1976</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-fcb4b24a24cb200f5f062f4b441969d4cbf5dc7ec338a032d8d6685111a00e0c3</citedby><cites>FETCH-LOGICAL-c371t-fcb4b24a24cb200f5f062f4b441969d4cbf5dc7ec338a032d8d6685111a00e0c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Barlow, B A</creatorcontrib><creatorcontrib>Wiens, D</creatorcontrib><title>Translocation heterozygosity and sex ratio in Viscum fischeri</title><title>Heredity</title><addtitle>Heredity</addtitle><description>Summary
Male plants of
V. fischeri
have
2n
= 23 and constantly produce seven bivalents and a multivalent chain of nine chromosomes at meiosis. Regular assortment results in transmission of 11- and 12-chromosome genomes via the pollen. Female plants have the chromosome number
2n
= 22 and are homozygous for the 11-chromosome genome. The multivalent chain in the males is a consequence of reciprocal translocations, one of which was Robertsonian and one of which involved the chromosome carrying the sex determination factors. There is a constant female-predominant sex ratio of approximately 1:2 in
V. fischeri
, possibly maintained by gamete selection; the genes involved may have been linked with the sex determination mechanism through the translocation system.</description><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Cytogenetics</subject><subject>Ecology</subject><subject>Evolutionary Biology</subject><subject>Human Genetics</subject><subject>original-article</subject><subject>Plant Genetics and Genomics</subject><issn>0018-067X</issn><issn>1365-2540</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1976</creationdate><recordtype>article</recordtype><recordid>eNptj0tLxDAUhYMoWEdX_oHstfXm0bRduJDBFwy4GcVdSPOYZphpJOmA9dfbMi5dHbjn43I-hK4JFARYfdeZsSBNJQrBTlBGmChzWnI4RRkAqXMQ1ec5ukhpCwCsok2G7tdR9WkXtBp86HFnBxvDz7gJyQ8jVr3ByX7jOLfY9_jDJ33YYzdFZ6O_RGdO7ZK9-ssFen96XC9f8tXb8-vyYZVrVpEhd7rlLeWKct1SAFc6ENTxlnPSiMZMV1caXVnNWK2AUVMbIeqSEKIALGi2QDfHvzqGlKJ18iv6vYqjJCBnczmZy9lcCjbRt0c6TVS_sVFuwyH208B_8V_uPlvF</recordid><startdate>19760801</startdate><enddate>19760801</enddate><creator>Barlow, B A</creator><creator>Wiens, D</creator><general>Springer International Publishing</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19760801</creationdate><title>Translocation heterozygosity and sex ratio in Viscum fischeri</title><author>Barlow, B A ; Wiens, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-fcb4b24a24cb200f5f062f4b441969d4cbf5dc7ec338a032d8d6685111a00e0c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1976</creationdate><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Cytogenetics</topic><topic>Ecology</topic><topic>Evolutionary Biology</topic><topic>Human Genetics</topic><topic>original-article</topic><topic>Plant Genetics and Genomics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Barlow, B A</creatorcontrib><creatorcontrib>Wiens, D</creatorcontrib><collection>CrossRef</collection><jtitle>Heredity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Barlow, B A</au><au>Wiens, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Translocation heterozygosity and sex ratio in Viscum fischeri</atitle><jtitle>Heredity</jtitle><stitle>Heredity</stitle><date>1976-08-01</date><risdate>1976</risdate><volume>37</volume><issue>1</issue><spage>27</spage><epage>40</epage><pages>27-40</pages><issn>0018-067X</issn><eissn>1365-2540</eissn><abstract>Summary
Male plants of
V. fischeri
have
2n
= 23 and constantly produce seven bivalents and a multivalent chain of nine chromosomes at meiosis. Regular assortment results in transmission of 11- and 12-chromosome genomes via the pollen. Female plants have the chromosome number
2n
= 22 and are homozygous for the 11-chromosome genome. The multivalent chain in the males is a consequence of reciprocal translocations, one of which was Robertsonian and one of which involved the chromosome carrying the sex determination factors. There is a constant female-predominant sex ratio of approximately 1:2 in
V. fischeri
, possibly maintained by gamete selection; the genes involved may have been linked with the sex determination mechanism through the translocation system.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1038/hdy.1976.63</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0018-067X |
| ispartof | Heredity, 1976-08, Vol.37 (1), p.27-40 |
| issn | 0018-067X 1365-2540 |
| language | eng |
| recordid | cdi_crossref_primary_10_1038_hdy_1976_63 |
| source | Nature; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Biomedical and Life Sciences Biomedicine Cytogenetics Ecology Evolutionary Biology Human Genetics original-article Plant Genetics and Genomics |
| title | Translocation heterozygosity and sex ratio in Viscum fischeri |
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