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NATURAL PARTHENOGENESIS [2 records]
Record 1 - internal organization data 2001-09-28
Record 1, English
Record 1, Subject field(s)
- Genetics
- Plant Biology
Record 1, Main entry term, English
- natural parthenogenesis
1, record 1, English, natural%20parthenogenesis
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- natural parthenocarpy 2, record 1, English, natural%20parthenocarpy
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Natural parthenogenesis has been observed in many lower animals (it is characteristic of the rotifers), especially insects, e.g., the aphid. In many social insects, such as the honeybee and the ant, the unfertilized eggs give rise to the male drones and the fertilized eggs o the female workers and queens. ... The phenomenon is rarer among plants (where it is called parthenocarpy) than among animals. Unusual patterns of heredity can occur in parthenogenetic organisms. 1, record 1, English, - natural%20parthenogenesis
Record number: 1, Textual support number: 1 OBS
Authors monitored the natural parthenocarpy, i.e. the ratio of seedless (parthenocarpous), empty or embryoless seed containing (stenospermocarpous) fruits on three sites of contrasting ecological conditions for ten years with 87 varieties. Every time (variety and year) 40 to 150 buds were emasculated radically and isolated without having been pollinated. 2, record 1, English, - natural%20parthenogenesis
Record 1, French
Record 1, Domaine(s)
- Génétique
- Biologie végétale
Record 1, Main entry term, French
- parthénogenèse naturelle
1, record 1, French, parth%C3%A9nogen%C3%A8se%20naturelle
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- parthénocarpie naturelle 2, record 1, French, parth%C3%A9nocarpie%20naturelle
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La formation du fruit résulte normalement de la fécondation. Certains fruits se développent sans fécondation par parthénogenèse et donc sans graine. La parthénogenèse peut être naturelle (ananas, clémentines corses, raisin de Corinthe, Sultanine, banane, ...) ou provoquée par des hormones; cela permet d'établir une fructification malgré des conditions climatiques contraires à la pollinisation [...] 1, record 1, French, - parth%C3%A9nogen%C3%A8se%20naturelle
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-09-27
Record 2, English
Record 2, Subject field(s)
- Genetics
- Animal Biology
Record 2, Main entry term, English
- natural parthenogenesis
1, record 2, English, natural%20parthenogenesis
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Natural parthenogenesis has been observed in many lower animals (it is characteristic of the rotifers), especially insects, e.g., the aphid. In many social insects, such as the honeybee and the ant, the unfertilized eggs give rise to the male drones and the fertilized eggs o the female workers and queens. ... The phenomenon is rarer among plants (where it is called parthenocarpy) than among animals. Unusual patterns of heredity can occur in parthenogenetic organisms. 1, record 2, English, - natural%20parthenogenesis
Record 2, French
Record 2, Domaine(s)
- Génétique
- Biologie animale
Record 2, Main entry term, French
- parthénogenèse naturelle
1, record 2, French, parth%C3%A9nogen%C3%A8se%20naturelle
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Mode de reproduction non provoquée par lequel les ovules se développent naturellement et donnent naissance à un nouvel être sans avoir été fécondés. 2, record 2, French, - parth%C3%A9nogen%C3%A8se%20naturelle
Record number: 2, Textual support number: 1 CONT
[...] la parthénogenèse est un phénomène fréquent dans la nature; de nombreux organismes utilisent ce mode de reproduction. [...] La parthénogenèse naturelle. Lorsque des femelles sont issues de gamètes non fécondés, on parle de parthénogenèse thélytoque; si seuls des mâles se développent, on dit qu'elle est arrhénotoque; quand une femelle vierge donne à la fois des mâles et des femelles, on qualifie la parthénogenèse de deutérotoque. Chez les insectes, la parthénogenèse présente des aspects encore plus divers: elle est cyclique, par exemple, chez les pucerons, qui passent de la parthénogenèse à la reproduction sexuée. [...] Tous les intermédiaires existent entre la parthénogenèse exclusive et la parthénogenèse occasionnelle. On peut cependant classer ces formes de reproduction en quatre groupes : La parthénogenèse exclusive [...]. La parthénogenèse exclusive ou normale [...]. La parthénogenèse facultative [...]. La parthénogenèse occasionnelle. 1, record 2, French, - parth%C3%A9nogen%C3%A8se%20naturelle
Record 2, Spanish
Record 2, Textual support, Spanish
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