Structure-whether inorganic matter, the morphology of living things, or objects crafted by culture-is data rich. If the information contained within a single material, organism, or cultural artifact is immense, the collective information contained in the universe of things is fathomless.


In Morphology Lab we measure shapes with exquisite detail using X-ray Computed Tomography (CT) and analyze the resulting data using Topological Data Analysis (TDA). Below, explore our publications to see what we're working on!

Soltani et al. 2021

The genetics and physiology of seed dormancy, a crucial trait in common bean domestication

Bryson, Wilson Brown, Mullins, Dong et al. 2020

Composite modeling of leaf shape along shoots discriminates Vitis species better than individual leaves

Chitwood 2020

The shapes of wine and table grape leaves: an ampelometric study inspired by the methods of Pierre Galet

Amézquita et al. 2020

The shape of things to come: Topological data analysis and biology, from molecules to organisms

Baumgartner et al. 2020

Rapid leaf trait response to growing-season meteorology in Vitis: Implications for leaf physiognomic paleoclimate reconstructions

Rowland et al. 2020

Leaf shape is a predictor of fruit quality and cultivar performance in tomato

Demmings et al. 2019

Quantitative Trait Locus Analysis of Leaf Morphology Indicates Conserved Shape Loci in Grapevine

Eithun et al. 2019

Isolating phyllotactic patterns embedded in the secondary growth of sweet cherry (Prunus avium L.) using magnetic resonance imaging

Li et al. 2019

Characterizing grapevine (Vitis spp.) inflorescence architecture using X-ray imaging: implications for understanding cluster density

Chitwood et al. 2019

Topological Mapper for 3D Volumetric Images

Migicovsky et al. 2019

Rootstock effects on scion phenotypes in a ‘Chambourcin’ experimental vineyard

Barbosa et al. 2018

Bundle sheath extensions affect leaf structural and physiological plasticity in response to irradiance

Haus et al. 2018

Long-distance and trans-generational stomatal patterning by CO2 across Arabidopsis organs

Skopelitis et al. 2018

Gating of miRNA movement at defined cell-cell interfaces governs their impact as positional signals

Li et al. 2018

The persistent homology mathematical framework provides enhanced genotype-to-phenotype associations for plant morphology

Li et al. 2018

Topological Data Analysis as a Morphometric Method: Using Persistent Homology to Demarcate a Leaf Morphospace

Coneva & Chitwood 2018

Genetic and Developmental Basis for Increased Leaf Thickness in the Arabidopsis Cvi Ecotype

Migicovsky et al. 2018

Morphometrics Reveals Complex and Heritable Apple Leaf Shapes

Chitwood & Otoni 2017

Divergent leaf shapes among Passiflora species arise from a shared juvenile morphology

Coneva et al. 2017

Genetic architecture and molecular networks underlying leaf thickness in desert-adapted tomato Solanum pennellii

Bender et al. 2017

Heritability of the Structures and 13C Fractionation in Tomato Leaf Wax Alkanes: A Genetic Model System to Inform Paleoenvironmental Reconstructions

Bucksch et al. 2017

Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences

Li et al. 2017

Persistent homology and the branching topologies of plants

Klein et al. 2017

Digital morphometrics of two North American grapevines (Vitis: Vitaceae) quantifies leaf variation between species, within species, and among individuals

Chitwood & Otoni 2017

Morphometric analysis of Passiflora leaves: the relationship between landmarks of the vasculature and elliptical Fourier descriptors of the blade

Wilson et al. 2017

Gene expression atlas for the food security crop cassava

Andres et al. 2017

Modifications to a LATE MERISTEM IDENTITY1 gene are responsible for the major leaf shapes of Upland cotton (Gossypium hirsutum L.)

Martinez et al. 2016

Left-right leaf asymmetry in decussate and distichous phyllotactic systems

Chitwood & Irish 2016

A renaissance in plant development

Martinez et al. 2016

A Sister of PIN1 gene in tomato (Solanum lycopersicum) defines leaf and flower organ initiation patterns by maintaining epidermal auxin flux

Fulop et al. 2016

A New Advanced Backcross Tomato Population Enables High Resolution Leaf QTL Mapping and Gene Identification

Ranjan et al. 2016

eQTL regulating Transcript Levels Associated with Diverse Biological Processes in Tomato

Frank & Chitwood 2016

Plant chimeras: the good, the bad, and the 'Bizzaria'

Chitwood & Sinha 2016

Evolutionary and Environmental Forces Sculpting Leaf Development

Fahlgren et al. 2016

Plant scientists: GM technology is safe

Chitwood et al. 2016

Climate and developmental plasticity: interannual variability in grapevine leaf morphology

Warschefsky et al. 2015

Rootstocks: Diversity, Domestication, and Impacts on Shoot Phenotypes

Ostria-Gallardo et al. 2016

Transcriptomic analysis suggests a key role for SQUAMOSA PROMOTER BINDING PROTEIN LIKE, NAC and YUCCA genes in the heteroblastic development of the temperate rainforest tree Gevuina avellana (Proteaceae)

Chitwood et al. 2016

Latent developmental and evolutionary shapes embedded within the grapevine leaf

Chitwood et al. 2015

Light-Induced Indeterminacy Alters Shade-Avoiding Tomato Leaf Morphology

Coneva & Chitwood 2015

Plant architecture without multicellularity: quandaries over patterning and the soma-germline divide in siphonous algae

Chitwod & Topp 2015

Revealing plant cryptotypes: defining meaningful phenotypes among infinite traits

Ranjan et al. 2015

An intracellular transcriptomic atlas of the giant coenocyte Caulerpa taxifolia

Chitwood & Sinha 2014

Plant development: small RNAs and the metamorphosis of leaves

Chitwood 2014

Imitation, genetic lineages, and time influenced the morphological evolution of the violin

Chitwood et al. 2014

Resolving distinct genetic regulators of tomato leaf shape within a heteroblastic and ontogenetic context

Ichihashi et al. 2014

Evolutionary developmental transcriptomics reveals a gene network module regulating interspecific diversity in plant leaf shape

Screen Shot 2020-07-03 at 10.23.20 AM

A modern ampelography: a genetic basis for leaf shape and venation patterning in grape

Chitwood et al. 2013

A quantitative genetic basis for leaf morphology in a set of precisely defined tomato introgression lines

Koenig et al. 2013

Comparative transcriptomics reveals patterns of selection in domesticated and wild tomato

Chitwood et al. 2013

Dynamic transcriptomic profiles between tomato and a wild relative reflect distinct developmental architectures

Chitwood & Sinha 2013

A census of cells in time: quantitative genetics meets developmental biology

Kumar et al. 2012

A High-Throughput Method for Illumina RNA-Seq Library Preparation

Chitwood et al. 2012

Conflict between Intrinsic Leaf Asymmetry and Phyllotaxis in the Resupinate Leaves of Alstroemeria psittacina

Chitwood et al. 2012

Leaf asymmetry as a developmental constraint imposed by auxin-dependent phyllotactic patterning

Chitwood et al. 2012

Native environment modulates leaf size and response to simulated foliar shade across wild tomato species

Screen Shot 2020-07-03 at 10.20.40 AM

The developmental trajectory of leaflet morphology in wild tomato species

Chitwood & Timmermans 2010

Small RNAs are on the move

Husbands et al. 2009

Signals and prepatterns: new insights into organ polarity in plants

Chitwood et al. 2009

Pattern formation via small RNA mobility

Nogueira et al. 2009

Regulation of small RNA accumulation in the maize shoot apex

Chitwood & Timmermans 2007

Target mimics modulate miRNAs

Nogueira et al. 2007

Two small regulatory RNAs establish opposing fates of a developmental axis

Nogueira et al. 2006

Organ polarity in plants is specified through the opposing activity of two distinct small regulatory RNAs

Chitwood et al. 2007

Establishing leaf polarity: the role of small RNAs and positional signals in the shoot apex

Irvine et al. 2006

Argonaute slicing is required for heterochromatic silencing and spreading

Lee et al. 2005

Activation of CRABS CLAW in the Nectaries and Carpels of Arabidopsis

© 2019 by Dan Chitwood.

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