About: Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha)

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About: Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha) Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We applied flow cytometry, karyotyping, and mitochondrial DNA sequencing to three sexual and five parthenogenetic Eastern-Alpine species of the jumping-bristletail genus Machilis to investigate whether (1) parthenogenesis originated once or multiply and (2) whether parthenogenesis is strictly associated with polyploidy. The mitochondrial phylogeny revealed that parthenogenesis evolved at least five times independently in this genus. One parthenogenetic species was exclusively triploid, while a second consisted of both diploid and triploid populations. The other parthenogenetic species and all sexual species were diploid. Our results thus indicate that polyploidy can co-occur with parthenogenesis, but that it was not mandatory for the emergence of parthenogenesis in Machilis. The haploid genome size decreased with elevation, and we therefore hypothesize that genome downsizing could have been crucial for the persistence of alpine Machilis species. We applied flow cytometry, karyotyping, and mitochondrial DNA sequencing to three sexual and five parthenogenetic Eastern-Alpine species of the jumping-bristletail genus Machilis to investigate whether (1) parthenogenesis originated once or multiply and (2) whether parthenogenesis is strictly associated with polyploidy. The mitochondrial phylogeny revealed that parthenogenesis evolved at least five times independently in this genus. One parthenogenetic species was exclusively triploid, while a second consisted of both diploid and triploid populations. The other parthenogenetic species and all sexual species were diploid. Our results thus indicate that polyploidy can co-occur with parthenogenesis, but that it was not mandatory for the emergence of parthenogenesis in Machilis. The haploid genome size decreased with elevation, and we therefore hypothesize that genome downsizing could have been crucial for the persistence of alpine Machilis species. (en)
Title	Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha) Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha) (en)
skos:prefLabel	Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha) Extensive variation in chromosome number and genome size in sexual and parthenogenetic species of the jumping-bristletail genus Machilis (Archaeognatha) (en)
skos:notation	RIV/60077344:_____/14:00436717!RIV15-GA0-60077344
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA14-22765S)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Marec, František
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	16203
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/14:00436717
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	asexuality; chromosomal speciation; genome downsizing (en)
http://linked.open.../riv/klicoveSlovo	asexuality chromosomal speciation genome downsizing
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0B74DBB621C9]
http://linked.open...i/riv/nazevZdroje	Ecology and Evolution
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Turnover of sex chromosomes in the karyotype evolution of Lepidoptera
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	4
http://linked.open...iv/tvurceVysledku	Marec, František Schönswetter, P. Arthofer, W. Dejaco, T. Gassner, M. Schlick-Steiner, B. C. Steiner, F. M.
http://linked.open...ain/vavai/riv/wos	000344752000007
issn	2045-7758
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/ece3.1264

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