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单词 haplontic
释义

Definition of haplontic in English:

haplontic

adjective hapˈlɒntɪk
Genetics
  • (of an alga or other lower plant) having a life cycle in which the main form is haploid, with a diploid zygote being formed only briefly.

    Compare with diplontic and diplohaplontic
    Example sentencesExamples
    • The life-cycle is of haplontic type showing alternation of dominant haploid stage with short-lived diploid stage.
    • Most are saprophytic similar to true fungi. v. Sexual life cycle is diplontic, fungi have haplontic cycle.
    • If it is primarily haploid, it is said to have a haplontic cycle, and if it is primarily diploid, it is said to have a diplontic cycle.
    • Multicellular organisms with haplontic life cycles follow paths A and C.
    • This pattern is reverse of haplontic type.

Derivatives

  • haplont

  • noun
    Genetics
    • The individuals or cells as a result of mitosis are haplonts, hence this life cycle is also called haplontic life cycle.
      Example sentencesExamples
      • The individuals or cells resulting from mitosis are haplonts, hence this life cycle is also called haplontic life cycle.
      • When the haplont selection or homozygotization by mutation happens in all spikelets on one of M1-plant stalks, then all kernels formed in these spikelets and, therefore, all plants of M2-family will have the mutation of the same type.
      • The haploid filamentous plants are known as haplonts which reproduce asexually by zoospores or aplanospores producing the individuals like parents.
      • Coexistence of sexual and asexual reproduction within the same individual is an intriguing problem, especially when it concerns homothallic haplonts, like the fungus Aspergillus nidulans.
 
 

Definition of haplontic in US English:

haplontic

adjectiveˌhapˈlän(t)ik
Genetics
  • (of an alga or other lower plant) having a life cycle in which the main form is haploid, with a diploid zygote being formed only briefly.

    Compare with diplontic and diplohaplontic
    Example sentencesExamples
    • This pattern is reverse of haplontic type.
    • The life-cycle is of haplontic type showing alternation of dominant haploid stage with short-lived diploid stage.
    • Multicellular organisms with haplontic life cycles follow paths A and C.
    • If it is primarily haploid, it is said to have a haplontic cycle, and if it is primarily diploid, it is said to have a diplontic cycle.
    • Most are saprophytic similar to true fungi. v. Sexual life cycle is diplontic, fungi have haplontic cycle.
 
 
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更新时间:2024/9/22 21:23:25