Role of gene interactions in hybrid speciation: Evidence from ancient and experimental hybrids

被引：345

作者：

Rieseberg, LH ^{[1
]}

Sinervo, B ^{[1
]}

Linder, CR ^{[1
]}

Ungerer, MC ^{[1
]}

Arias, DM ^{[1
]}

机构：

[1] UNIV AUTONOMA ESTADO MORELOS,CTR INVEST AMBIENTAL & INVEST SIERRA HUAUTLA,CUERNAVACA 62210,MORELOS,MEXICO

来源：

SCIENCE | 1996年 / 272卷 / 5262期

关键词：

D O I：

10.1126/science.272.5262.741

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The origin of a new diploid species by means of hybridization requires the successful merger of differentiated parental species' genomes. To study this process, the genomic composition of three experimentally synthesized hybrid lineages was compared with that of an ancient hybrid species. The genomic composition of the synthesized and ancient hybrids was concordant (r(s) = 0.68, P < 0.0001), indicating that selection to a large extent governs hybrid species formation. Further, nonrandom rates of introgression and significant associations among unlinked markers in each of the three synthesized hybrid lineages imply that interactions between coadapted parental species' genes constrain the genomic composition of hybrid species.

引用

页码：741 / 745

页数：5

共 21 条

[1] ARE NATURAL HYBRIDS FIT OR UNFIT RELATIVE TO THEIR PARENTS [J].