Abstract:
:The initial experimental population of Drosophila persimilis was photopositive and slightly geonegative. In this respect, the initial population of D. persimilis differed from the experimental population of D. pseudoobscura, described by others, which was close to photo- and geotactic neutrality. In D. persimilis as in D. pseudoobscura, photo- and geotactic selection was efficient in both positive and negative directions. In D. persimilis, unlike in D. pseudoobscura, the responses to geotactic and phototactic selection were clearly asymmetrical. As a result of such responses, selection practically eliminated interspecific difference in geotaxis and almost eliminated interspecific difference in phototaxis. The realized heritabilities of photo- and geotaxis over the first ten generations of selection in D. persimilis are between 6 and 7 percent. Practically, these heritabilities in D. persimilis have the same value, whereas in D. pseudoobscura the heritabilities are clearly different. These findings suggest that D. persimilis differs considerably from D. pseudoobscura in the composition of the genes determining photo- and geotactic behavior, most probably reflecting adaptations of these sibling species to different ecological niches. However, both species are capable of reacting quickly to external stresses by reorganizing their gene pools and by correspondingly changing their behavior.
journal_name
Behav Genetjournal_title
Behavior geneticsauthors
Polivanov Sdoi
10.1007/BF01066177subject
Has Abstractpub_date
1975-07-01 00:00:00pages
255-67issue
3eissn
0001-8244issn
1573-3297journal_volume
5pub_type
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journal_title:Behavior genetics
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pub_type: 传,历史文章,杂志文章
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journal_title:Behavior genetics
pub_type: 杂志文章
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journal_title:Behavior genetics
pub_type: 杂志文章
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更新日期:1981-03-01 00:00:00
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journal_title:Behavior genetics
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1007/s10519-019-09982-7
更新日期:2020-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s10519-006-9123-2
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pub_type: 杂志文章,meta分析
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journal_title:Behavior genetics
pub_type: 杂志文章
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更新日期:1999-03-01 00:00:00
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journal_title:Behavior genetics
pub_type: 杂志文章
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更新日期:1997-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2002-11-01 00:00:00
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pub_type: 杂志文章
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journal_title:Behavior genetics
pub_type: 杂志文章
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更新日期:1989-01-01 00:00:00
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pub_type: 杂志文章
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