A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata

Knief U, Schielzeth H, Ellegren H, Kempenaers B, Forstmeier W (2015)
Molecular Ecology 24(15): 3846-3859.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
The two parental alleles at a specific locus are usually inherited with equal probability to the offspring. However, at least three processes can lead to an apparent departure from fair segregation: early viability selection, biased gene conversion and various kinds of segregation distortion. Here, we conduct a genome-wide scan for transmission distortion in a captive population of zebra finches (Taeniopygia guttata) using 1302 single-nucleotide polymorphisms (SNPs) followed by confirmatory analyses on independent samples from the same population. In the initial genome-wide scan, we found significant distortion at three linked loci on chromosome Tgu2 and we were able to replicate this finding in each of two follow-up data sets [overall transmission ratio = 0.567 (95% CI = 0.536–0.600), based on 1101 informative meioses]. Although the driving allele was preferentially transmitted by both heterozygous females [ratio = 0.560 (95% CI = 0.519–0.603)] and heterozygous males [ratio = 0.575 (95% CI = 0.531–0.623)], we could rule out postzygotic viability selection and biased gene conversion as possible mechanisms. Early postzygotic viability selection is unlikely, because it would result in eggs with no visible embryo and hence no opportunity for genotyping, and we confirmed that both females and males heterozygous for the driving allele did not produce a larger proportion of such eggs than homozygous birds. Biased gene conversion is expected to be rather localized, while we could trace transmission distortion in haplotypes of several megabases in a recombination desert. Thus, we here report the rare case of a prezygotically active transmission distorter operating equally effectively in female and male meioses.
Erscheinungsjahr
Zeitschriftentitel
Molecular Ecology
Band
24
Zeitschriftennummer
15
Seite
3846-3859
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Knief U, Schielzeth H, Ellegren H, Kempenaers B, Forstmeier W. A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata. Molecular Ecology. 2015;24(15):3846-3859.
Knief, U., Schielzeth, H., Ellegren, H., Kempenaers, B., & Forstmeier, W. (2015). A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata. Molecular Ecology, 24(15), 3846-3859. doi:10.1111/mec.13281
Knief, U., Schielzeth, H., Ellegren, H., Kempenaers, B., and Forstmeier, W. (2015). A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata. Molecular Ecology 24, 3846-3859.
Knief, U., et al., 2015. A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata. Molecular Ecology, 24(15), p 3846-3859.
U. Knief, et al., “A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata”, Molecular Ecology, vol. 24, 2015, pp. 3846-3859.
Knief, U., Schielzeth, H., Ellegren, H., Kempenaers, B., Forstmeier, W.: A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata. Molecular Ecology. 24, 3846-3859 (2015).
Knief, Ulrich, Schielzeth, Holger, Ellegren, Hans, Kempenaers, Bart, and Forstmeier, Wolfgang. “A prezygotic transmission distorter acting equally in female and male zebra finches Taeniopygia guttata”. Molecular Ecology 24.15 (2015): 3846-3859.

3 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

A sex-chromosome inversion causes strong overdominance for sperm traits that affect siring success.
Knief U, Forstmeier W, Pei Y, Ihle M, Wang D, Martin K, Opatová P, Albrechtová J, Wittig M, Franke A, Albrecht T, Kempenaers B., Nat Ecol Evol 1(8), 2017
PMID: 29046576
The Ecology and Evolutionary Dynamics of Meiotic Drive.
Lindholm AK, Dyer KA, Firman RC, Fishman L, Forstmeier W, Holman L, Johannesson H, Knief U, Kokko H, Larracuente AM, Manser A, Montchamp-Moreau C, Petrosyan VG, Pomiankowski A, Presgraves DC, Safronova LD, Sutter A, Unckless RL, Verspoor RL, Wedell N, Wilkinson GS, Price TAR., Trends Ecol Evol 31(4), 2016
PMID: 26920473

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