植物学报2025，Vol.60Issue(6)：859-862,4.DOI:10.11983/CBB25139
同倍杂交物种形成演化出令人惊奇的创新性状
Homoploid Hybrid Speciation Produces Surprising Innovative Traits
摘要
Abstract
Recent research has discovered that an ancient homoploid interspecific hybridization event between ancestral species of the tomato lineage(Solanum sect.Lycopersicon)and sect.Etuberosum lineage in the nightshade family(So-lanaceae)gave rise to the ancestral species of the potato lineage(sect.Petota)and generated the innovative"potato"tuber trait.This hybridization event not only introduced this key innovative trait but also triggered the exploitation of new ecological niches,ultimately leading to the explosive emergence of species within the potato clade.This study,together with related case studies in recent years,collectively reveals the universality of the molecular mechanism of homoploid hybrid speciation-namely,"generating innovative traits through the alternate inheritance of highly diverged alleles from both parental lineages".These findings hold significant implications for revising the traditional bifurcating speciation model and advancing the paradigm shift in artificial breeding practices.关键词
马铃薯组/番茄组/同倍杂交物种形成/交替继承/高分化等位基因/创新性状/普适性Key words
Petota/Lycopersicon(tomato)/homoploid hybrid speciation/alternate inheritance/highly diverged alleles/innovative trait/universality引用本文复制引用
王文..同倍杂交物种形成演化出令人惊奇的创新性状[J].植物学报,2025,60(6):859-862,4.基金项目
新基石研究员项目(2025) （2025）
