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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10146013%21RIV14-GA0-11310___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1371/journal.pone.0064537
dcterms:description
Specialization makes resource use more efficient and should therefore be a common process in animal evolution. However, this process is not as universal in nature as one might expect. Our study shows that Sphecodes (Halictidae) cuckoo bees frequently change their host over the course of their evolution. To test the evolutionary scenario of host specialization in cuckoo bees, we constructed well-supported phylogenetic trees based on partial sequences of five genes for subtribe Sphecodina (Halictini). We detected up to 17 host switches during Sphecodes evolution based on 37 ingroup species subject to mapping analysis of the hosts associated with the cuckoo bee species. We also examine the direction of evolution of host specialization in Sphecodes using the likelihood ratio test and obtain results to support the bidirectional evolutionary scenario in which specialists can arise from generalists, and vice versa. We explain the existence of generalist species in Sphecodes based on their specialization at the individual level, which is recently known in two species. Our findings suggest flexible host choice and frequent host switches in the evolution of Sphecodes cuckoo bees. This scenario leads us to propose an individual choice constancy hypothesis based on the individual specialization strategy in cuckoo bees. Choice constancy has a close relationship to flower constancy in bees and might be an extension of the latter. Our analysis also shows relationships among the genera Microsphecodes, Eupetersia, Sphecodes and Austrosphecodes, a formerly proposed Sphecodes subgenus. Austrosphecodes species form a basal lineage of the subtribe, and Microsphecodes makes it paraphyletic. Specialization makes resource use more efficient and should therefore be a common process in animal evolution. However, this process is not as universal in nature as one might expect. Our study shows that Sphecodes (Halictidae) cuckoo bees frequently change their host over the course of their evolution. To test the evolutionary scenario of host specialization in cuckoo bees, we constructed well-supported phylogenetic trees based on partial sequences of five genes for subtribe Sphecodina (Halictini). We detected up to 17 host switches during Sphecodes evolution based on 37 ingroup species subject to mapping analysis of the hosts associated with the cuckoo bee species. We also examine the direction of evolution of host specialization in Sphecodes using the likelihood ratio test and obtain results to support the bidirectional evolutionary scenario in which specialists can arise from generalists, and vice versa. We explain the existence of generalist species in Sphecodes based on their specialization at the individual level, which is recently known in two species. Our findings suggest flexible host choice and frequent host switches in the evolution of Sphecodes cuckoo bees. This scenario leads us to propose an individual choice constancy hypothesis based on the individual specialization strategy in cuckoo bees. Choice constancy has a close relationship to flower constancy in bees and might be an extension of the latter. Our analysis also shows relationships among the genera Microsphecodes, Eupetersia, Sphecodes and Austrosphecodes, a formerly proposed Sphecodes subgenus. Austrosphecodes species form a basal lineage of the subtribe, and Microsphecodes makes it paraphyletic.
dcterms:title
Flexible Host Choice and Common Host Switches in the Evolution of Generalist and Specialist Cuckoo Bees (Anthophila: Sphecodes) Flexible Host Choice and Common Host Switches in the Evolution of Generalist and Specialist Cuckoo Bees (Anthophila: Sphecodes)
skos:prefLabel
Flexible Host Choice and Common Host Switches in the Evolution of Generalist and Specialist Cuckoo Bees (Anthophila: Sphecodes) Flexible Host Choice and Common Host Switches in the Evolution of Generalist and Specialist Cuckoo Bees (Anthophila: Sphecodes)
skos:notation
RIV/00216208:11310/13:10146013!RIV14-GA0-11310___
n15:predkladatel
n16:orjk%3A11310
n4:aktivita
n13:I n13:S n13:P
n4:aktivity
I, P(GA206/09/0522), S
n4:cisloPeriodika
5
n4:dodaniDat
n14:2014
n4:domaciTvurceVysledku
n19:3010821 n19:9016546
n4:druhVysledku
n6:J
n4:duvernostUdaju
n21:S
n4:entitaPredkladatele
n20:predkladatel
n4:idSjednocenehoVysledku
75289
n4:idVysledku
RIV/00216208:11310/13:10146013
n4:jazykVysledku
n17:eng
n4:klicovaSlova
red queen; arms races; sequence data; nuclear genes; phytophagous insects; cleptoparasitic bees; plant specialization; hymenoptera-halictidae; ecological specialization; phylogenetic-relationships
n4:klicoveSlovo
n5:plant%20specialization n5:ecological%20specialization n5:phylogenetic-relationships n5:phytophagous%20insects n5:nuclear%20genes n5:cleptoparasitic%20bees n5:sequence%20data n5:hymenoptera-halictidae n5:red%20queen n5:arms%20races
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[7685416E78D5]
n4:nazevZdroje
PLoS ONE
n4:obor
n8:EG
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
3
n4:projekt
n12:GA206%2F09%2F0522
n4:rokUplatneniVysledku
n14:2013
n4:svazekPeriodika
8
n4:tvurceVysledku
Straka, Jakub Bogusch, Petr Habermannová, Jana
n4:wos
000319107900109
s:issn
1932-6203
s:numberOfPages
16
n10:doi
10.1371/journal.pone.0064537
n3:organizacniJednotka
11310