Английская Википедия:Andromonoecy

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Andromonoecy is a breeding system of plant species in which male and hermaphrodite flowers are on the same plant.[1] It is a monomorphic sexual system comparable with monoecy, gynomonoecy and trimonoecy.[2] Andromonoecy is frequent among genera with zygomorphic flowers,[3] however it is overall rare and occurs in less than 2% of plant species. Nonetheless the breeding system has gained interest among biologists in the study of sex expression.[4]

Etymology

The word andromonoecious is a combination of andr- (meaning male) and monoecious and was first used in 1877.[5]

Prevalence

Andromonoecy is uncommon and has been estimated to occur in less than 2% of plant species.[4] In angiosperms, it occurs in 1.7% of angiosperms making up around 4000 species in 33 families.[6][7] It is common in the grass subfamily Panicoideae.[8]

Andromonoecious species

Solanum

Evolution

Some authors view andromonoecy as a transitional state from hermaphroditism to monoecy.[11] It has been suggested that andromonoecy evolved from hermaphroditism due to the loss of female structures.[9]

Andromonoecy is also considered an evolutionary step towards dioecy.[15] If female flowers are better at producing seeds than hermaphroditic ones, andromonoecy could evolve towards monoecy.[16]

References

Шаблон:Reflist

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ Шаблон:Citation
  2. ↑ Шаблон:Cite journal
  3. ↑ Шаблон:Cite book
  4. ↑ 4,0 4,1 Шаблон:Cite book
  5. ↑ Шаблон:Cite web
  6. ↑ Шаблон:Cite journal
  7. ↑ Шаблон:Cite journal
  8. ↑ Шаблон:Cite book
  9. ↑ 9,0 9,1 9,2 Шаблон:Cite book
  10. ↑ Шаблон:Cite journal
  11. ↑ 11,0 11,1 Шаблон:Cite journal
  12. ↑ Шаблон:Cite book
  13. ↑ 13,0 13,1 Шаблон:Cite book
  14. ↑ Шаблон:Cite book
  15. ↑ Шаблон:Cite book
  16. ↑ Шаблон:Cite book
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