Biology and Evolution of the Mexican
Cavefish features contributions by
leading researchers in a
comprehensive, unique work that
examines a number of distinct areas of
biology—evolution, development,
ecology, and behavior—using the
Mexican cavefish as a powerful model
system to further understanding of
basic biological processes such as eye
degeneration, hearing, craniofacial
development, sleep, and metabolic
function.
These fish are currently being used to
better understand a number of issues
related to human health, including
age-related blindness, sleep, obesity,
mood-related disorders, and aging. The
recent sequencing of the cavefish
genome broadens the interest of this
system to groups working with diverse
biological systems, and has helped
researchers identify genes that
regulate sleep, eye degeneration, and
metabolic function.
Mexican cavefish are particularly
powerful for the study of biological
processes because these fish evolved
independently in twenty-nine caves in
the Sierra de el Abra Region of
Northeast Mexico. These fish have
dramatic adaptations to the cave
environment, and this can be used to
identify genes involved in
disease-related traits.
This scholarly text will be of
interest to researchers and students
throughout diverse areas of biology
and ecology. It includes photographs
of animals and behavior in laboratory
and natural settings that will also
increase interest and accessibility to
non-experts.
Includes a mixture of images and
illustrations such as the geographical
distribution of cave pools and the
developmental biology of the nervous
systemFeatures a companion site with
geographical maps Fills a notable gap
in the literature on a topic of broad
interest to the scientific
communityPresents the recent
sequencing of the cavefish genome as a
groundbreaking development for
researchers working with diverse
biological systems
Chapter 1 - Cave Exploration and
Mapping in the Sierra de El Abra
Region, Pages 9-40
Chapter 2 - Hydrogeology of Caves in
the Sierra de El Abra Region, Pages
41-58
Chapter 3 - Cave Biodiversity and
Ecology of the Sierra de El Abra
Region, Pages 59-76
Chapter 4 - Phylogeny and Evolutionary
History of Astyanax mexicanus, Pages
77-90
Chapter 5 - Regressive Evolution:
Testing Hypotheses of Selection and
Drift, Pages 93-109
Chapter 6 - Mapping the Genetic Basis
of Troglomorphy in Astyanax: How Far
We Have Come and Where Do We Go from
Here?, Pages 111-135
Chapter 7 - Selection Through Standing
Genetic Variation, Pages 137-152
Chapter 8 - Pigment Regression and
Albinism in Astyanax Cavefish, Pages
155-173
Chapter 9 - Molecular Mechanisms of
Eye Degeneration in Cavefish, Pages
175-192
Chapter 10 - The Evolution of the
Cavefish Craniofacial Complex, Pages
193-207
Chapter 11 - Evolution and Development
of the Cavefish Oral Jaws: Adaptations
for Feeding, Pages 209-225
Chapter 12 - Neural Development and
Evolution in Astyanax mexicanus:
Comparing Cavefish and Surface Fish
Brains, Pages 227-244
Chapter 13 - The Evolution of Sensory
Adaptation in Astyanax mexicanus,
Pages 247-267
Chapter 14 - Feeding Behavior,
Starvation Response, and Endocrine
Regulation of Feeding in Mexican Blind
Cavefish (Astyanax fasciatus
mexicanus), Pages 269-290
Chapter 15 - Investigating the
Evolution of Sleep in the Mexican
Cavefish, Pages 291-308
Chapter 16 - Daily Rhythms in a
Timeless Environment: Circadian Clocks
in Astyanax mexicanus, Pages 309-333
Chapter 17 - Social Behavior and
Aggressiveness in Astyanax, Pages
335-359
Chapter 18 - Spatial Mapping in
Perpetual Darkness: EvoDevo of
Behavior in Astyanax mexicanus
Cavefish, Pages 361-376
Chapter 19 - Transgenesis and Future
Applications for Cavefish Research,
Pages 379-392
Concluding Remarks: The Astyanax
Community, Pages 393-396