| 释义 |
Definition of allogamy in English: allogamynoun əˈlɒɡəmiəˈlɑɡəmi mass nounBotany The fertilization of a flower by pollen from another flower, especially one on a different plant. Compare with autogamy Example sentencesExamples - Changes in floral morphology are normally required to promote either autogamy or allogamy.
- Simulations were based on a Wright-Fisher model, with two modifications: separate sexes (with an equal sex ratio) and strict allogamy (no selfing).
- The allogamy in the genus Helianthus is favoured by the particular mechanism of anthesis in which anthers shed pollen before the stigma of the same flower is ready to receive it.
- Similar patterns were observed for 100% allogamy and 10% allogamy.
- This specialized system is thought to be an adaptation promoting allogamy by secondary pollen presentation.
Derivatives adjective Botany The construction of maps of autotetraploids is a much greater problem than that of maps of allogamous diploids. Example sentencesExamples - In the literature, few studies of gene nucleotide diversity have considered both within-population and between-population variation in allogamous plants.
- A double pseudo-testcross strategy has generally been adopted for constructing genetic maps in conifers having allogamous characteristics.
- Some species are self-compatible (thereafter called SC species) and are obligatorily or facultatively autogamous, while other species have a self-incompatible locus (SI species) and are obligatorily allogamous.
- On the other hand, invading species with predominantly allogamous modes of reproduction may possess a high level of genetic diversity.
Origin Late 19th century: from allo- 'other, different' + Greek -gamia (from gamos 'marriage'). Definition of allogamy in US English: allogamynounəˈlɑɡəmiəˈläɡəmē Botany The fertilization of a flower by pollen from another flower, especially one on a different plant. Compare with autogamy Example sentencesExamples - Similar patterns were observed for 100% allogamy and 10% allogamy.
- This specialized system is thought to be an adaptation promoting allogamy by secondary pollen presentation.
- Simulations were based on a Wright-Fisher model, with two modifications: separate sexes (with an equal sex ratio) and strict allogamy (no selfing).
- The allogamy in the genus Helianthus is favoured by the particular mechanism of anthesis in which anthers shed pollen before the stigma of the same flower is ready to receive it.
- Changes in floral morphology are normally required to promote either autogamy or allogamy.
Origin Late 19th century: from allo- ‘other, different’ + Greek -gamia (from gamos ‘marriage’). |