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Göteborgs universitets publikationer

Habitat conditions and phenological tree traits overrule the influence of tree genotype in the needle mycobiome–Picea glauca system at an arctic treeline ecotone

Författare och institution:
Pascal Eusemann (-); Martin Schnittler (-); R. Henrik Nilsson (Institutionen för biologi och miljövetenskap); Ari Jumpponen (-); Mathilde B. Dahl (-); David G. Würth (-); Allan Buras (-); Martin Wilmking (-); Martin Unterseher (-)
Publicerad i:
New Phytologist, 211 ( 4 ) s. 1221-1231
ISSN:
0028-646X
E-ISSN:
1469-8137
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2016
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
Plant-associated mycobiomes in extreme habitats are understudied and poorly understood. We analysed Illumina-generated ITS1 sequences from the needle mycobiome of white spruce (Picea glauca) at the northern treeline in Alaska (USA). Sequences were obtained from the same DNA that was used for tree genotyping. In the present study, fungal metabarcoding and tree microsatellite data were compared for the first time. In general, neighbouring trees shared more fungal taxa with each other than trees growing in further distance. Mycobiomes correlated strongly with phenological host traits and local habitat characteristics contrasting a dense forest stand with an open treeline site. Genetic similarity between trees did not influence fungal composition and no significant correlation existed between needle mycobiome and tree genotype. Our results suggest the pronounced influence of local habitat conditions and phenotypic tree traits on needle-inhabiting fungi. By contrast, the tree genetic identity cannot be benchmarked as a dominant driver for needle-inhabiting mycobiomes, at least not for white spruce in this extreme environment.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Geovetenskap och miljövetenskap
NATURVETENSKAP ->
Geovetenskap och miljövetenskap ->
Klimatforskning
NATURVETENSKAP ->
Biologiska vetenskaper ->
Mikrobiologi
NATURVETENSKAP ->
Biologiska vetenskaper ->
Botanik
NATURVETENSKAP ->
Biologiska vetenskaper ->
Bioinformatik och systembiologi
NATURVETENSKAP ->
Biologiska vetenskaper ->
Ekologi
NATURVETENSKAP ->
Biologiska vetenskaper ->
Biologisk systematik
LANTBRUKSVETENSKAPER ->
Lantbruksvetenskap, skogsbruk och fiske ->
Skogsvetenskap
Nyckelord:
biodiversity; Illumina high-throughput sequencing; internal transcribed spacer (ITS) rDNA; metabarcoding; microsatellites; needle-inhabiting fungal phytobiome; plant–fungus interactions; tree phenotypic plasticity
Postens nummer:
236528
Posten skapad:
2016-05-13 15:41
Posten ändrad:
2016-09-26 10:26

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