英语词汇“introgression”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

introgression

/ˌɪntrə(ʊ)ˈɡrɛʃ(ə)n

noun [mass noun] Biology

The transfer of genetic information from one species to another as a result of hybridization between them and repeated backcrossing.Therefore, there is the potential for gene introgression across species via backcross of hybrid females to the parental species....

This would rule out scenarios of numt evolution involving horizontal transfer or introgression between species.
In the absence of selection against genetic introgression, the incipient species should fuse.

Derivatives

introgressive

adjective ...

Plant biologists have long been comfortable with the notion that ‘good species’ can still exchange some genes via introgressive hybridization as have biologists concerned with hybrid zones.
Incongruence among data sets can arise from various biological processes, including introgressive hybridization, recombination, and gene conversion.
For instance, introgressive events, even when rare, may be more important than mutations as a source of novel genetic variability within taxa.

Origin

Mid 17th century: from Latin introgredi 'step in', from intro- 'to the inside' + gradi 'proceed, walk', on the pattern of egression, ingression.

单词	introgression
释义	introgression /ˌɪntrə(ʊ)ˈɡrɛʃ(ə)n / noun [mass noun] Biology The transfer of genetic information from one species to another as a result of hybridization between them and repeated backcrossing.Therefore, there is the potential for gene introgression across species via backcross of hybrid females to the parental species.... This would rule out scenarios of numt evolution involving horizontal transfer or introgression between species. In the absence of selection against genetic introgression, the incipient species should fuse. Derivatives introgressive adjective ... Plant biologists have long been comfortable with the notion that ‘good species’ can still exchange some genes via introgressive hybridization as have biologists concerned with hybrid zones. Incongruence among data sets can arise from various biological processes, including introgressive hybridization, recombination, and gene conversion. For instance, introgressive events, even when rare, may be more important than mutations as a source of novel genetic variability within taxa. Origin Mid 17th century: from Latin introgredi 'step in', from intro- 'to the inside' + gradi 'proceed, walk', on the pattern of egression, ingression.
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