Detailed Information on Publication Record

MIKULA, Ondřej, Jean-Christophe AUFFRAY and Miloš MACHOLÁN. Asymmetric size and shape variation in the Central European transect across the house mouse hybrid zone. Biological Journal of the Linnean Society. London: Blackwell Publishing, 2010, vol. 101, No 1, p. 13-27. ISSN 0024-4066. Available from: https://dx.doi.org/10.1111/j.1095-8312.2010.01490.x.

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TY  - JOUR
ID  - 1664060
AU  - Mikula, Ondřej - Auffray, Jean-Christophe - Macholán, Miloš
PY  - 2010
TI  - Asymmetric size and shape variation in the Central European transect across the house mouse hybrid zone
JF  - Biological Journal of the Linnean Society
VL  - 101
IS  - 1
SP  - 13-27
EP  - 13-27
PB  - Blackwell Publishing
SN  - 00244066
KW  - asymmetric variation
KW  - developmental instability
KW  - fluctuating asymmetry
KW  - mandible
KW  - Mus musculus
KW  - skull
UR  - https://doi.org/10.1111/j.1095-8312.2010.01490.x
L2  - https://doi.org/10.1111/j.1095-8312.2010.01490.x
N2  - We studied asymmetric variation of the mandible in the Central European portion of the hybrid zone between two house mouse subspecies, Mus musculus musculus and Mus musculus domesticus. Within introgression classes, defined by the share of diagnostic allozymes, we quantified the directional and fluctuating component of asymmetric variation, as well as skewness and kurtosis of individual asymmetry distributions. Furthermore, in the same manner we re-analysed asymmetric variation of the ventral side of the skull. According to the quadratic polynomial model, the mandible shape-fluctuating asymmetry, but not size-fluctuating asymmetry, was significantly decreased in the centre of the hybrid zone (with a minimum predicted for a hybrid index of 0.41). On the contrary, the skull shape-fluctuating asymmetry non-monotonically increased towards the musculus side of the hybrid zone (with a peak predicted for a hybrid index of 0.86). Thus, the impact of hybridization on fluctuating asymmetry is trait-specific in this portion of the house mouse hybrid zone. The only general feature of asymmetric variation we observed was the shift towards the platykurtosis of asymmetry distributions in the centre of the hybrid zone. Taken together, we suggest genetic variability for right-left asymmetries to be generally increased, but the developmental instability of mandible shape to be decreased, by hybridization. We hypothesize the decrease of developmental instability to be caused by overdominant effects on developmental dynamics rather than by increased heterozygosity.
ER  -

Basic information
Original name	Asymmetric size and shape variation in the Central European transect across the house mouse hybrid zone
Authors	MIKULA, Ondřej (203 Czech Republic, belonging to the institution), Jean-Christophe AUFFRAY and Miloš MACHOLÁN (203 Czech Republic, belonging to the institution).
Edition	Biological Journal of the Linnean Society, London, Blackwell Publishing, 2010, 0024-4066.

Other information
Original language	English
Type of outcome	Article in a journal
Field of Study	10602 Biology , Evolutionary biology
Country of publisher	United Kingdom of Great Britain and Northern Ireland
Confidentiality degree	is not subject to a state or trade secret
WWW	URL
Impact factor	Impact factor: 2.166
Organization unit	Faculty of Science
Doi	http://dx.doi.org/10.1111/j.1095-8312.2010.01490.x
UT WoS	000281210500002
Keywords in English	asymmetric variation; developmental instability; fluctuating asymmetry; mandible; Mus musculus; skull
Tags	rivok
Tags	International impact, Reviewed
Changed by	Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 24/6/2020 10:39.

Abstract
We studied asymmetric variation of the mandible in the Central European portion of the hybrid zone between two house mouse subspecies, Mus musculus musculus and Mus musculus domesticus. Within introgression classes, defined by the share of diagnostic allozymes, we quantified the directional and fluctuating component of asymmetric variation, as well as skewness and kurtosis of individual asymmetry distributions. Furthermore, in the same manner we re-analysed asymmetric variation of the ventral side of the skull. According to the quadratic polynomial model, the mandible shape-fluctuating asymmetry, but not size-fluctuating asymmetry, was significantly decreased in the centre of the hybrid zone (with a minimum predicted for a hybrid index of 0.41). On the contrary, the skull shape-fluctuating asymmetry non-monotonically increased towards the musculus side of the hybrid zone (with a peak predicted for a hybrid index of 0.86). Thus, the impact of hybridization on fluctuating asymmetry is trait-specific in this portion of the house mouse hybrid zone. The only general feature of asymmetric variation we observed was the shift towards the platykurtosis of asymmetry distributions in the centre of the hybrid zone. Taken together, we suggest genetic variability for right-left asymmetries to be generally increased, but the developmental instability of mandible shape to be decreased, by hybridization. We hypothesize the decrease of developmental instability to be caused by overdominant effects on developmental dynamics rather than by increased heterozygosity.

Abstract

We studied asymmetric variation of the mandible in the Central European portion of the hybrid zone between two house mouse subspecies, Mus musculus musculus and Mus musculus domesticus. Within introgression classes, defined by the share of diagnostic allozymes, we quantified the directional and fluctuating component of asymmetric variation, as well as skewness and kurtosis of individual asymmetry distributions. Furthermore, in the same manner we re-analysed asymmetric variation of the ventral side of the skull. According to the quadratic polynomial model, the mandible shape-fluctuating asymmetry, but not size-fluctuating asymmetry, was significantly decreased in the centre of the hybrid zone (with a minimum predicted for a hybrid index of 0.41). On the contrary, the skull shape-fluctuating asymmetry non-monotonically increased towards the musculus side of the hybrid zone (with a peak predicted for a hybrid index of 0.86). Thus, the impact of hybridization on fluctuating asymmetry is trait-specific in this portion of the house mouse hybrid zone. The only general feature of asymmetric variation we observed was the shift towards the platykurtosis of asymmetry distributions in the centre of the hybrid zone. Taken together, we suggest genetic variability for right-left asymmetries to be generally increased, but the developmental instability of mandible shape to be decreased, by hybridization. We hypothesize the decrease of developmental instability to be caused by overdominant effects on developmental dynamics rather than by increased heterozygosity.