SelectedWorks - Nicole Valenzuela

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Selected Works of Nicole Valenzuela

Professor of Ecology, Evolution and Organismal Biology

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About Nicole Valenzuela

2015 - Present	Associate Professor, Iowa State University ‐ Department of Ecology, Evolution and Organismal Biology
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Ecology and Evolutionary Biology

239 Bessey

2200 Osborn Dr

Ames, IA 50011

Phone: 515-294-1285

Fax: 515-294-1337

Email:

Peer-Reviewed Articles (22)

Alternative splicing and thermosensitive expression of Dmrt1 during urogenital development ...

Beatriz Mizoguchi and Nicole Valenzuela

Background The doublesex and mab-3 related transcription factor 1 (Dmrt1) is a highly conserved gene across numerous vertebrates and invertebrates ...

Turtle Insights into the Evolution of the Reptilian Karyotype and ...

Basanta Bista and Nicole Valenzuela

Sex chromosome evolution remains an evolutionary puzzle despite its importance in understanding sexual development and genome evolution. The seemingly random ...

Do Local Environmental Factors and Lunar Cycle Influence Timing and ...

Diversity (2019)

Tibisay Escalona, Nicole Valenzuela and Dean C. Adams

Timing of nesting affects fitness of oviparous animals living in seasonal environments, and females may cue on environmental factors for ...

Extreme thermal fluctuations from climate change unexpectedly accelerate demographic collapse ...

Scientific Reports (2019)

Nicole Valenzuela, Robert Literman, Jennifer L. Neuwald, Beatriz Mizoguchi, et al.

Global climate is warming rapidly, threatening vertebrates with temperature-dependent sex determination (TSD) by disrupting sex ratios and other traits. Less ...

A lengthy solution to the optimal propagule size problem in ...

Evolutionary Ecology (2018)

Tibisay Escalona, Dean C. Adams and Nicole Valenzuela

In oviparous vertebrates lacking parental care, resource allocation during reproduction is a major maternal effect that may enhance female fitness. ...

Reconstruction of the diapsid ancestral genome permits chromosome evolution tracing ...

Nature Communications (2018)

Rebecca E. O'Connor, Michael N. Ramanov, Lucas G. Larkin, Paul M. Barrett, et al.

Genomic organisation of extinct lineages can be inferred from extant chromosome-level genome assemblies. Here, we apply bioinformatic and molecular cytogenetic ...

Transcriptomic responses to environmental temperature by turtles with temperature-dependent and ...

PLoS ONE (2017)

Srihari Radhakrishnan, Robert A. Literman, Jennifer L. Neuwald, Andrew Severin, et al.

Vertebrate sexual fate is decided primarily by the individual’s genotype (GSD), by the environmental temperature during development (TSD), or both. ...

MeDIP-seq and nCpG analyses illuminate sexually dimorphic methylation of gonadal ...

Epigenetics & Chromatin (2017)

Srihari Radhakrishnan, Robert Literman, Beatriz Mizoguchi and Nicole Valenzuela

Background: DNA methylation alters gene expression but not DNA sequence and mediates some cases of phenotypic plasticity. Temperature-dependent sex determination ...

Sex determination, longevity, and the birth and death of reptilian ...

Ecology and Evolution (2016)

Niv Sabath, Yuval Itescu, Anat Feldman, Shai Meiri, et al.

Vertebrate sex-determining mechanisms (SDMs) are triggered by the genotype (GSD), by temperature (TSD), or occasionally, by both. The causes and ...

Physical Mapping and Refinement of the Painted Turtle Genome (Chrysemys ...

Genome Biology and Evolution (2015)

Daleen Badenhorst, LaDeana W. Hillier, Robert A. Literman, Eugenia Elisabet Montiel, et al.

Comparative genomics continues illuminating amniote genome evolution, but for many lineages our understanding remains incomplete. Here, we refine the assembly ...

Y Fuse? Sex Chromosome Fusions in Fishes and Reptiles

PLOS Genetics (2015)

Matthew W. Pennell, Mark Kirkpatrick, Sarah P. Otto, Jana C. Vamosi, et al.

Chromosomal fusion plays a recurring role in the evolution of adaptations and reproductive isolation among species, yet little is known ...

Sex Determination: Why So Many Ways of Doing It?

PLOS Biology (2014)

Doris Bachtrog, Judith E. Mank, Catherine L. Peichel, Mark Kirkpatrick, et al.

Sexual reproduction is an ancient feature of life on earth, and the familiar X and Y chromosomes in humans and ...

Tree of Sex: A database of sexual systems

Scientific Data (2014)

Tia-Lynn Ashman, Doris Bachtrog, Heath Blackmon, Emma E. Goldberg, et al.

The vast majority of eukaryotic organisms reproduce sexually, yet the nature of the sexual system and the mechanism of sex ...

Sex-Biased Expression of Sex-Differentiating Genes FOXL2 and FGF9 in American ...

Sexual Development (2013)

Daniel E. Janes, Ruth M. Elsey, Esther M. Langan, Nicole M. Valenzuela, et al.

Across amniotes, sex-determining mechanisms exhibit great variation, yet the genes that govern sexual differentiation are largely conserved. Studies of evolution ...

The western painted turtle genome, a model for the evolution ...

Genome Biology (2013)

H. Bradley Shaffer, Patrick Minx, Daniel E. Warren, Andrew M. Shedlock, et al.

Abstract Background: We describe the genome of the western painted turtle, Chrysemys picta bellii, one of the most widespread, abundant, ...

Sex Chromosome Evolution in Amniotes: Applications for Bacterial Artificial Chromosome ...

Journal of Biomedicine and Biotechnology (2011)

Daniel E. Janes, Nicole M. Valenzuela, Tariq Ezaz, Chris T. Amemiya, et al.

Variability among sex chromosome pairs in amniotes denotes a dynamic history. Since amniotes diverged from a common ancestor, their sex ...

The Lesser Known Challenge of Climate Change: Thermal Variance and ...

PLOS One (2011)

Jennifer L. Neuwald and Nicole M. Valenzuela

Climate change is expected to disrupt biological systems. Particularly susceptible are species with temperature-dependent sex determination (TSD), as in many ...

Skeletochronology of the endangered side-neck turtle, Podocnemis expansa

South African Journal of Science (2008)

Anusuya Chinsamy and Nicole M. Valenzuela

Previous preliminary mark–recapture studies, and assessment of carapace length and annuli of the endangered giant Amazonian river turtle, Podocnemis expansa, ...

Book review of "Incubation of Reptile Eggs"

The Quarterly Review of Biology (2006)

Nicole M. Valenzuela

This book is an updated translation of an original German edition that covers a wide variety of topics related to ...

Pattern Does Not Equal Process: Exactly When Is Sex Environmentally ...

American Naturalist (2003)

Nicole Valenzuela, Dean C. Adams and Fredric J. Janzen

Of prime importance in evolutionary biology are the description of pattern and explanations of process. Frequently, however, multiple processes can ...

Nest-site philopatry and the evolution of temperature-dependent sex determination

Evolutionary Ecology Research (2001)

Nicole M. Valenzuela and Fredric J. Janzen

Despite intensive research, there is no clear empirical evidence to explain the evolution and persistence of temperature-dependent sex determination in ...

Constant, shift, and natural temperature effects on sex determination in ...

Nicole Valenzuela

Environmental sex determination may yield biased sex ratios, as is the case in many reptilian species with temperature-dependent sex determination ...