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A horizontally transferred nuclear gene is associated with microhabitat variation in a natural plant population.

Prentice, Honor C LU ; Li, Yuan LU ; Lönn, Mikael; Tunlid, Anders LU and Ghatnekar, Lena LU (2015) In Royal Society of London. Proceedings B. Biological Sciences 282(1821).
Abstract
Horizontal gene transfer involves the non-sexual interspecific transmission of genetic material. Even if they are initially functional, horizontally transferred genes are expected to deteriorate into non-expressed pseudogenes, unless they become adaptively relevant in the recipient organism. However, little is known about the distributions of natural transgenes within wild species or the adaptive significance of natural transgenes within wild populations. Here, we examine the distribution of a natural plant-to-plant nuclear transgene in relation to environmental variation within a wild population. Festuca ovina is polymorphic for an extra (second) expressed copy of the nuclear gene (PgiC) encoding cytosolic phosphoglucose isomerase, with... (More)
Horizontal gene transfer involves the non-sexual interspecific transmission of genetic material. Even if they are initially functional, horizontally transferred genes are expected to deteriorate into non-expressed pseudogenes, unless they become adaptively relevant in the recipient organism. However, little is known about the distributions of natural transgenes within wild species or the adaptive significance of natural transgenes within wild populations. Here, we examine the distribution of a natural plant-to-plant nuclear transgene in relation to environmental variation within a wild population. Festuca ovina is polymorphic for an extra (second) expressed copy of the nuclear gene (PgiC) encoding cytosolic phosphoglucose isomerase, with the extra PgiC locus having been acquired horizontally from the distantly related grass genus Poa. We investigated variation at PgiC in samples of F. ovina from a fine-scale, repeating patchwork of grassland microhabitats, replicated within spatially separated sites. Even after accounting for spatial effects, the distributions of F. ovina individuals carrying the additional PgiC locus, and one of the enzyme products encoded by the locus, are significantly associated with fine-scale habitat variation. Our results suggest that the PgiC transgene contributes, together with the unlinked 'native' PgiC locus, to local adaptation to a fine-scale mosaic of edaphic and biotic grassland microhabitats. (Less)
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publication status
published
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in
Royal Society of London. Proceedings B. Biological Sciences
volume
282
issue
1821
publisher
Royal Society
external identifiers
  • pmid:26674953
  • wos:000368096900028
  • scopus:84951812496
ISSN
1471-2954
DOI
10.1098/rspb.2015.2453
language
English
LU publication?
yes
id
6fc3ea3f-d3c9-48ba-a024-d35a981de2bd (old id 8504524)
date added to LUP
2016-01-08 09:28:43
date last changed
2017-01-01 03:52:40
@article{6fc3ea3f-d3c9-48ba-a024-d35a981de2bd,
  abstract     = {Horizontal gene transfer involves the non-sexual interspecific transmission of genetic material. Even if they are initially functional, horizontally transferred genes are expected to deteriorate into non-expressed pseudogenes, unless they become adaptively relevant in the recipient organism. However, little is known about the distributions of natural transgenes within wild species or the adaptive significance of natural transgenes within wild populations. Here, we examine the distribution of a natural plant-to-plant nuclear transgene in relation to environmental variation within a wild population. Festuca ovina is polymorphic for an extra (second) expressed copy of the nuclear gene (PgiC) encoding cytosolic phosphoglucose isomerase, with the extra PgiC locus having been acquired horizontally from the distantly related grass genus Poa. We investigated variation at PgiC in samples of F. ovina from a fine-scale, repeating patchwork of grassland microhabitats, replicated within spatially separated sites. Even after accounting for spatial effects, the distributions of F. ovina individuals carrying the additional PgiC locus, and one of the enzyme products encoded by the locus, are significantly associated with fine-scale habitat variation. Our results suggest that the PgiC transgene contributes, together with the unlinked 'native' PgiC locus, to local adaptation to a fine-scale mosaic of edaphic and biotic grassland microhabitats.},
  articleno    = {20152453},
  author       = {Prentice, Honor C and Li, Yuan and Lönn, Mikael and Tunlid, Anders and Ghatnekar, Lena},
  issn         = {1471-2954},
  language     = {eng},
  number       = {1821},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Proceedings B. Biological Sciences},
  title        = {A horizontally transferred nuclear gene is associated with microhabitat variation in a natural plant population.},
  url          = {http://dx.doi.org/10.1098/rspb.2015.2453},
  volume       = {282},
  year         = {2015},
}