Rapid neo-sex chromosome evolution and incipient speciation in a major forest pest.
Rapid neo-sex chromosome evolution and incipient speciation in a major forest pest.
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DOI:
10.1038/s41467-017-01761-4
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发表时间:
2017-11-17
影响因子:
16.6
通讯作者:
Good JM
中科院分区:
文献类型:
--
作者:
Bracewell RR;Bentz BJ;Sullivan BT;Good JM
Genome evolution is predicted to be rapid following the establishment of new (neo) sex chromosomes, but it is not known if neo-sex chromosome evolution plays an important role in speciation. Here we combine extensive crossing experiments with population and functional genomic data to examine neo-XY chromosome evolution and incipient speciation in the mountain pine beetle. We find a broad continuum of intrinsic incompatibilities in hybrid males that increase in strength with geographic distance between reproductively isolated populations. This striking progression of reproductive isolation is coupled with extensive gene specialization, natural selection, and elevated genetic differentiation on both sex chromosomes. Closely related populations isolated by hybrid male sterility also show fixation of alternative neo-Y haplotypes that differ in structure and male-specific gene content. Our results suggest that neo-sex chromosome evolution can drive rapid functional divergence between closely related populations irrespective of ecological drivers of divergence. The evolution of new sex chromosomes potentially generates reproductive isolation. Here, Bracewell et al. combine crossing experiments with population and functional genomics to characterize neo-sex chromosome evolution and incipient speciation in the mountain pine beetle, Dendroctonus ponderosae.
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DOI:
10.1111/nph.14191
发表时间:
2017-01
期刊:
The New phytologist
影响因子:
--
作者:
Bentz BJ;Hood SM;Hansen EM;Vandygriff JC;Mock KE
通讯作者:
Mock KE
影响因子:
2.7
作者:
Chen, Huapeng;Walton, Adrian
通讯作者:
Walton, Adrian
影响因子:
30.8
作者:
通讯作者:
--
DOI:
10.1126/science.1258524
发表时间:
2015-01-02
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Fontaine MC;Pease JB;Steele A;Waterhouse RM;Neafsey DE;Sharakhov IV;Jiang X;Hall AB;Catteruccia F;Kakani E;Mitchell SN;Wu YC;Smith HA;Love RR;Lawniczak MK;Slotman MA;Emrich SJ;Hahn MW;Besansky NJ
通讯作者:
Besansky NJ
影响因子:
9.2
作者:
Bergero, Roberta;Qiu, Suo;Charlesworth, Deborah
通讯作者:
Charlesworth, Deborah