pedigree collapse

名词 n.
中文释义

英文释义

名词 n.
  1. The phenomenon in which ancestral inbreeding causes the number of a descendant’s distinct ancestors to be smaller than that predicted by a binary tree (∑ᵢ₌₁ⁿ 2ⁱ, where n represents the number of generations). uncountable
    — Less well-known is the argument that we may all have a single mitochondrial foundress — not necessarily a single ancestress — owing to the likelihood of ‘lineage extinction’ and ‘pedigree collapse’ as a result of mating with cousins, small population sizes, and high mortality before reproductive age.

词源

Coined by Robert C. Gunderson.
0 次浏览 数据来源: Wiktionary