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@article{1664060,
author = {Mikula, Ondřej and Auffray, JeanandChristophe and Macholán, Miloš},
article_location = {London},
article_number = {1},
doi = {http://dx.doi.org/10.1111/j.1095-8312.2010.01490.x},
keywords = {asymmetric variation; developmental instability; fluctuating asymmetry; mandible; Mus musculus; skull},
language = {eng},
issn = {0024-4066},
journal = {Biological Journal of the Linnean Society},
title = {Asymmetric size and shape variation in the Central European transect across the house mouse hybrid zone},
url = {https://doi.org/10.1111/j.1095-8312.2010.01490.x},
volume = {101},
year = {2010}
}
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 -
MIKULA, Ondřej, Jean-Christophe AUFFRAY a Miloš MACHOLÁN. Asymmetric size and shape variation in the Central European transect across the house mouse hybrid zone. \textit{Biological Journal of the Linnean Society}. London: Blackwell Publishing, 2010, roč.~101, č.~1, s.~13-27. ISSN~0024-4066. Dostupné z: https://dx.doi.org/10.1111/j.1095-8312.2010.01490.x.
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