overdominance中文什么意思

超显性：杂合子的适应性超过两种纯合子的现象。

过显性

• associative overdominance:    联系超显性
• assortative overdominance:    联合超显性,联系超显性
• cumulative overdominance:    累积超显性

例句与用法

1. Overdominance or heterosis for catkin length in interspecific crosses has been reported .
   栗树种间杂交在荑花序长度上所表现的超亲（或杂种优势）已报道了。
2. Overdominance or heterosis for catkin length in interspecific crosses has been reported
   栗树种间杂交在?荑花序长度上所表现的超亲（或杂种优势）已报道了。
3. Overdominance or heterosis for catkin length in interspecific crosses has been reported
   < uk >栗树种间杂交在荑花序长度上所表现的超亲（或杂种优势）已报道了。 < / uk >

百科释义

Overdominance is a condition in genetics where the phenotype of the heterozygote lies outside of the phenotypical range of both homozygote parents. Overdominance can also be described as heterozygote advantage, wherein heterozygous individuals have a higher fitness than homozygous individuals.