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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14453
|2 doi
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|a pubmed24n0895.xml
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|a (DE-627)NLM268762805
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|a (NLM)28176339
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Zhou, Wei
|e verfasserin
|4 aut
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| 245 |
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|a Phylogeographic insights on the evolutionary breakdown of heterostyly
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|c 2017
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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 16.02.2018
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|a Date Revised 31.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a The breakdown of heterostyly to homostyly is a classic system for the investigation of evolutionary transitions from outcrossing to selfing. Loss of sexual polymorphism is characterized by changes to population morph structure and floral morphology. Here, we used molecular phylogeography to investigate the geographical context for the breakdown process in Primula chungensis, a species with distylous and homostylous populations. We genotyped plants from 20 populations throughout the entire range in south-west China using the chloroplast intergenic spacer (trnL-trnF), nuclear internal transcribed spacer (ITS) and 10 nuclear microsatellite loci, and determined the genetic relationships among populations and the variation in floral traits associated with homostyle evolution. The marker data identified two multi-population lineages (Tibet and Sichuan) and one single-population lineage (Yunnan), a pattern consistent with at least two independent origins of homostyly. Evidence from flower and pollen size variation is consistent with the hypothesis that transitions to selfing have arisen by the same genetic mechanism involving recombination and/or mutation at the distyly linkage group. Nevertheless, flowers of homostylous lineages have followed divergent evolutionary trajectories following their origin, resulting in populations with both approach and reverse herkogamy. Our study illustrates a rare example of the near-complete replacement of sexual polymorphism by floral monomorphism in a heterostylous species
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|a Journal Article
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|a Primula chungensis
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| 650 |
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|a floral evolution
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| 650 |
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4 |
|a heterostyly
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| 650 |
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4 |
|a homostyly
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| 650 |
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4 |
|a mating systems
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| 650 |
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4 |
|a phylogeography
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| 650 |
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4 |
|a selfing
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| 650 |
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7 |
|a DNA, Chloroplast
|2 NLM
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| 700 |
1 |
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|a Barrett, Spencer C H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Hai-Dong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Zhi-Kun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xin-Jia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Hong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, De-Zhu
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 214(2017), 3 vom: 08. Mai, Seite 1368-1380
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:214
|g year:2017
|g number:3
|g day:08
|g month:05
|g pages:1368-1380
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|u http://dx.doi.org/10.1111/nph.14453
|3 Volltext
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|d 214
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|h 1368-1380
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