Saltation (biology) | Wikipedia audio article
Channel: wikipedia tts
Date: 25/12/2018

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Saltation_(biology)


00:00:36 1 History
00:05:43 2 Macromutation theory
00:12:22 3 Current status
00:12:31 3.1 Known mechanisms
00:13:08 3.2 Claimed instances
00:15:05 3.3 Explanations
00:16:01 4 See also
00:16:24 5 Footnotes
00:16:33 6 Sources
00:16:42 7 External links



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SUMMARY
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In biology, saltation (from Latin, saltus, "leap") is a sudden and large mutational change from one generation to the next, potentially causing single-step speciation. This was historically offered as an alternative to Darwinism. Some forms of mutationism were effectively saltationist, implying large discontinuous jumps.
Speciation, such as by polyploidy in plants, can sometimes be achieved in a single and in evolutionary terms sudden step. Evidence is accumulating for various forms of saltation in a variety of organisms.