56. A widespread terrestrial species becomes divided when rising sea levels isolate a portion of the population on a newly formed island. Genetic analyses show rapid divergence in allele frequencies between mainland and island populations, and after several thousand generations, individuals from the two populations produce inviable hybrids when brought back into contact. Throughout the isolation period, there was no evidence of gene flow between populations. Which evolutionary process is best supported by this scenario?
(A) Introgressive hybridization maintaining genetic connectivity
(B) Behavioral isolation evolving within a continuous population
(C) Instantaneous reproductive isolation caused by genome duplication
(D) Divergence following geographic isolation with interrupted gene flow
(E) Ecological speciation driven by niche differentiation within the same habitat

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統計： A(0), B(2), C(0), D(5), E(0) #3852910

詳解 (共 1 筆)

#7375636

異域種化：主要是因地理隔離，而同域種化為polyploidy

(A)基因滲透有基因交流
（B)行為隔離為求偶行為或訊號改變
（E)生態種：在同一棲地內生態位分化

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