Gender variation, partial male sterility and labile sex expression in gynodioecious Plantago coronopus

Gynodioecy is 8 breeding system consisting of male, steriles (MS, females) and hermaphrodites (H). There is however within such systems a third, often neglected, class of partially male sterile plants (PMS), i.e. plants with an intermediate sex expression, In natural populations of Plantago coronopu...

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Veröffentlicht in:The New phytologist. - 1979. - 132(1996), 1 vom: 18. Jan., Seite 67-76
1. Verfasser: Koelewijn, Hans P (VerfasserIn)
Weitere Verfasser: VAN Damme, Jos M M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1996
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article (partial) male sterility Gender strategy Plantago coronopus gynodioecy labile sex expression
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520 |a Gynodioecy is 8 breeding system consisting of male, steriles (MS, females) and hermaphrodites (H). There is however within such systems a third, often neglected, class of partially male sterile plants (PMS), i.e. plants with an intermediate sex expression, In natural populations of Plantago coronopus partially male sterile individuals were us common as male steriles (frequencies in the range 1·7-36·8%). These PMS plants constitute a continuous series, linking complete male sterility and hermaphroditism. We discovered that temperature influenced sex expression and the degree of male sterility of PMS individuals, but not of MS and H individuals. Thus, at higher temperatures PMS individuals became more male sterile. Difference in cytoplasmic background of the individuals did nut influence their response to temperature. It is argued that partial male sterility is a normal feature of gynodioecious species and not an abnormality 
650 4 |a Journal Article 
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650 4 |a Gender strategy 
650 4 |a Plantago coronopus 
650 4 |a gynodioecy 
650 4 |a labile sex expression 
700 1 |a VAN Damme, Jos M M  |e verfasserin  |4 aut 
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