Although many species have gone extinct, their genetic components might exist in extant species because of ancient hybridization. Via advances in genome sequencing and development of modern population genetics, one can find the legacy of unknown or extinct species in the context of available genomes from extant species. Such discovery can be used as a strategy to search for hidden species or fossils in conservation biology and archeology, gain novel insight into complex evolutionary history, and provide the new sources of genetic variation for breeding and trait improvement in agriculture.

中文翻译：

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在现存物种的基因组中寻找未知物种

尽管许多物种已经灭绝，但由于古代杂交，它们的遗传成分可能存在于现存物种中。通过基因组测序的进步和现代群体遗传学的发展，人们可以在现有物种的可用基因组的背景下找到未知或灭绝物种的遗产。这些发现可以作为保护生物学和考古学中寻找隐藏物种或化石的策略，获得对复杂进化历史的新见解，并为农业育种和性状改良提供遗传变异的新来源。