Linkage map of Lissotriton newts provides insight into the genetic basis of reproductive isolation

2017
journal article
article
10
cris.lastimport.wos2024-04-10T02:00:30Z
dc.abstract.enLinkage maps are widely used to investigate structure, function, and evolution of genomes. In speciation research, maps facilitate the study of the genetic architecture of reproductive isolation by allowing identification of genomic regions underlying reduced fitness of hybrids. Here we present a linkage map for European newts of the Lissotriton vulgaris species complex, constructed using two families of F2 L. montandoni × L. vulgaris hybrids. The map consists of 1146 protein-coding genes on 12 linkage groups, equal to the haploid chromosome number, with a total length of 1484 cM (1.29 cM per marker). It is notably shorter than two other maps available for salamanders, but the differences in map length are consistent with cytogenetic estimates of the number of chiasmata per chromosomal arm. Thus, large salamander genomes do not necessarily translate into long linkage maps, as previously suggested. Consequently, salamanders are an excellent model to study evolutionary consequences of recombination rate variation in taxa with large genomes and a similar number of chromosomes. A complex pattern of transmission ratio distortion (TRD) was detected: TRD occurred mostly in one family, in one breeding season, and was clustered in two genomic segments. This is consistent with environment-dependent mortality of individuals carrying L. montandoni alleles in these two segments and suggests a role of TRD blocks in reproductive isolation. The reported linkage map will empower studies on the genomic architecture of divergence and interactions between the genomes of hybridizing newts.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowiskupl
dc.contributor.authorNiedzicka, Marta - 236150 pl
dc.contributor.authorDudek, Katarzyna - 108319 pl
dc.contributor.authorFijarczyk, Anna - 173221 pl
dc.contributor.authorZieliński, Piotr - 117246 pl
dc.contributor.authorBabik, Wiesław - 127155 pl
dc.date.accessioned2017-12-08T14:06:10Z
dc.date.available2017-12-08T14:06:10Z
dc.date.issued2017pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number7pl
dc.description.physical2115-2124pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume7pl
dc.identifier.doi10.1534/g3.117.041178pl
dc.identifier.eissn2160-1836pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/47376
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.enLissotritonpl
dc.subject.enlinkage mappl
dc.subject.enreproductive isolationpl
dc.subject.ensalamanderpl
dc.subject.entransmission ratio distortionpl
dc.subtypeArticlepl
dc.titleLinkage map of Lissotriton newts provides insight into the genetic basis of reproductive isolationpl
dc.title.journalG3pl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-10T02:00:30Z
dc.abstract.enpl
Linkage maps are widely used to investigate structure, function, and evolution of genomes. In speciation research, maps facilitate the study of the genetic architecture of reproductive isolation by allowing identification of genomic regions underlying reduced fitness of hybrids. Here we present a linkage map for European newts of the Lissotriton vulgaris species complex, constructed using two families of F2 L. montandoni × L. vulgaris hybrids. The map consists of 1146 protein-coding genes on 12 linkage groups, equal to the haploid chromosome number, with a total length of 1484 cM (1.29 cM per marker). It is notably shorter than two other maps available for salamanders, but the differences in map length are consistent with cytogenetic estimates of the number of chiasmata per chromosomal arm. Thus, large salamander genomes do not necessarily translate into long linkage maps, as previously suggested. Consequently, salamanders are an excellent model to study evolutionary consequences of recombination rate variation in taxa with large genomes and a similar number of chromosomes. A complex pattern of transmission ratio distortion (TRD) was detected: TRD occurred mostly in one family, in one breeding season, and was clustered in two genomic segments. This is consistent with environment-dependent mortality of individuals carrying L. montandoni alleles in these two segments and suggests a role of TRD blocks in reproductive isolation. The reported linkage map will empower studies on the genomic architecture of divergence and interactions between the genomes of hybridizing newts.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku
dc.contributor.authorpl
Niedzicka, Marta - 236150
dc.contributor.authorpl
Dudek, Katarzyna - 108319
dc.contributor.authorpl
Fijarczyk, Anna - 173221
dc.contributor.authorpl
Zieliński, Piotr - 117246
dc.contributor.authorpl
Babik, Wiesław - 127155
dc.date.accessioned
2017-12-08T14:06:10Z
dc.date.available
2017-12-08T14:06:10Z
dc.date.issuedpl
2017
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
7
dc.description.physicalpl
2115-2124
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
7
dc.identifier.doipl
10.1534/g3.117.041178
dc.identifier.eissnpl
2160-1836
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/47376
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.enpl
Lissotriton
dc.subject.enpl
linkage map
dc.subject.enpl
reproductive isolation
dc.subject.enpl
salamander
dc.subject.enpl
transmission ratio distortion
dc.subtypepl
Article
dc.titlepl
Linkage map of Lissotriton newts provides insight into the genetic basis of reproductive isolation
dc.title.journalpl
G3
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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