subterranean mole rats
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2020 ◽  
Vol 117 (51) ◽  
pp. 32499-32508
Author(s):  
Kexin Li ◽  
Shangzhe Zhang ◽  
Xiaoying Song ◽  
Alexandra Weyrich ◽  
Yinjia Wang ◽  
...  

Speciation mechanisms remain controversial. Two speciation models occur in Israeli subterranean mole rats, genusSpalax: a regional speciation cline southward of four peripatric climatic chromosomal species and a local, geologic-edaphic, genic, and sympatric speciation. Here we highlight their genome evolution. The five species were separated into five genetic clusters by single nucleotide polymorphisms, copy number variations (CNVs), repeatome, and methylome in sympatry. The regional interspecific divergence correspond to Pleistocene climatic cycles. Climate warmings caused chromosomal speciation. Triple effective population size,Ne, declines match glacial cold cycles. Adaptive genes evolved under positive selection to underground stresses and to divergent climates, involving interspecies reproductive isolation. Genomic islands evolved mainly due to adaptive evolution involving ancient polymorphisms. Repeatome, including both CNV and LINE1 repetitive elements, separated the five species. Methylation in sympatry identified geologically chalk-basalt species that differentially affect thermoregulation, hypoxia, DNA repair, P53, and other pathways. Genome adaptive evolution highlights climatic and geologic-edaphic stress evolution and the two speciation models, peripatric and sympatric.







2007 ◽  
Vol 53 (2) ◽  
pp. 161-166
Author(s):  
Eric J. Devor ◽  
Andrew S. Peek ◽  
Rebecca M. Dill-Devor ◽  
Aaron Avivi ◽  
Eviatar Nevo


Mammalia ◽  
2007 ◽  
Vol 71 (1/2) ◽  
Author(s):  
Tuba Yağci ◽  
Nursel Aşan


Oncogene ◽  
2006 ◽  
Vol 26 (17) ◽  
pp. 2507-2512 ◽  
Author(s):  
A Avivi ◽  
O Ashur-Fabian ◽  
A Joel ◽  
L Trakhtenbrot ◽  
K Adamsky ◽  
...  


2005 ◽  
Vol 19 (12) ◽  
pp. 1749-1751 ◽  
Author(s):  
Imad Shams ◽  
Eviatar Nevo ◽  
Aaron Avivi




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