V2EX allopolyploidy

Allopolyploidy

Definition / 释义

异源多倍体形成(异源多倍化):指两个不同物种(或不同基因组来源)的杂交后代,通过染色体加倍而变得可育,从而形成带有两套(或多套)不同来源基因组的多倍体类型。常见于植物的物种形成与育种过程中。(该词也可泛指由异源杂交导致的多倍体状态。)

Pronunciation / 发音

/lplpldi/

Examples / 例句

Allopolyploidy is common in flowering plants.
异源多倍化在开花植物中很常见。

Allopolyploidy can restore fertility after hybridization by doubling the chromosome sets from each parent species.
异源多倍化可以在杂交后通过将来自每个亲本物种的染色体组加倍来恢复可育性。

Etymology / 词源

来自希腊语词根组合:**allo-**(“不同的、他者的”)+ **poly-**(“多”)+ -ploidy(与“倍性/染色体组数”相关,源自 -ploid,意为“……倍的”)。整体字面义可理解为“由不同来源基因组构成的多倍性”。

Related Words / 相关词

Notable Works / 著作例证

  • Plant Systematics(Michael G. Simpson)在讨论植物多倍化与物种形成时常使用该术语。
  • Principles of Plant Genetics and Breeding(George Acquaah)在育种与多倍体章节中出现并用于解释异源多倍体的形成机制。
  • Evolution of Polyploid Plants(P. S. Soltis & D. E. Soltis 等相关著作/章节标题中常见)聚焦多倍体进化,频繁使用 allopolyploidy。
  • Polyploidy and Genome Evolution(多作者学术合集/专著标题与章节中常见)讨论多倍体基因组演化时常用该词。
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