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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15868
|2 doi
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|a pubmed24n0987.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Delph, Lynda F
|e verfasserin
|4 aut
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|a Pollen competition is the mechanism underlying a variety of evolutionary phenomena in dioecious plants
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 22.07.2020
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 The Author. New Phytologist © 2019 New Phytologist Trust.
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|a It has long been known that more pollen grains often arrive on stigmas than there are ovules to fertilize, resulting in pollen competition. Moreover, this competition among pollen grains (gametophytes) depends, in part, on their extensive haploid gene expression. Here I review how this leads to a variety of phenomena in dioecious plants of interest to evolutionary biologists. For example, pollen competition can lead to extreme female-biased sex ratios. In addition, gene expression by individual pollen grains can slow mutation accumulation and degeneration of the Y chromosome. Lastly, I review work on how the haploid selection resulting from pollen competition has been proposed to influence which alleles are linked to the Y chromosome, and some recent empirical evidence in support of this theory
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Review
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|a Rumex
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| 650 |
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|a Silene
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| 650 |
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|a gametophyte
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| 650 |
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|a gene expression
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| 650 |
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|a haploid selection
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| 650 |
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|a sex-chromosome evolution
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| 650 |
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|a sex-ratio bias
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|i Enthalten in
|t The New phytologist
|d 1979
|g 224(2019), 3 vom: 01. Nov., Seite 1075-1079
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:224
|g year:2019
|g number:3
|g day:01
|g month:11
|g pages:1075-1079
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|u http://dx.doi.org/10.1111/nph.15868
|3 Volltext
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