Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

Iowa State University

Plant Sciences

Ecology, Evolution and Organismal Biology Publications

Gossypium

Articles 1 - 12 of 12

Full-Text Articles in Entire DC Network

Intergenomic Gene Transfer In Diploid And Allopolyploid Gossypium, Nan Zhao, Corrinne E. Grover, Zhiwen Chen, Jonathan F. Wendel, Jinping Hua Jan 2019

Intergenomic Gene Transfer In Diploid And Allopolyploid Gossypium, Nan Zhao, Corrinne E. Grover, Zhiwen Chen, Jonathan F. Wendel, Jinping Hua

Ecology, Evolution and Organismal Biology Publications

Background: Intergenomic gene transfer (IGT) between nuclear and organellar genomes is a common phenomenon during plant evolution. Gossypium is a useful model to evaluate the genomic consequences of IGT for both diploid and polyploid species. Here, we explore IGT among nuclear, mitochondrial, and plastid genomes of four cotton species, including two allopolyploids and their model diploid progenitors (genome donors, G. arboreum: A2 and G. raimondii: D5).

Results: Extensive IGT events exist for both diploid and allotetraploid cotton (Gossypium) species, with the nuclear genome being the predominant recipient of transferred DNA followed by the mitochondrial genome. The nuclear genome has integrated ...


Designations For Individual Genomes And Chromosomes In Gossypium, Kunbo Wang, Jonathan F. Wendel, Jinping Hua Jun 2018

Designations For Individual Genomes And Chromosomes In Gossypium, Kunbo Wang, Jonathan F. Wendel, Jinping Hua

Ecology, Evolution and Organismal Biology Publications

Gossypium, as the one of the biggest genera, the most diversity, and the highest economic value in field crops, is assuming an increasingly important role in studies on plant taxonomy, polyploidization, phylogeny, cytogenetics, and genomics. Here we update and provide a brief summary of the emerging picture of species relationships and diversification, and a set of the designations for individual genomes and chromosomes in Gossypium. This cytogenetic and genomic nomenclature will facilitate comparative studies worldwide, which range from basic taxonomic exploration to breeding and germplasm introgression.


Independent Domestication Of Two Old World Cotton Species, Jonathan F. Wendel, Simon Renny-Byfield, Justin T. Page, Joshua A. Udall, William S. Sanders, Daniel G. Peterson, Mark A. Arick Ii, Corrinne E. Grover Jan 2016

Independent Domestication Of Two Old World Cotton Species, Jonathan F. Wendel, Simon Renny-Byfield, Justin T. Page, Joshua A. Udall, William S. Sanders, Daniel G. Peterson, Mark A. Arick Ii, Corrinne E. Grover

Ecology, Evolution and Organismal Biology Publications

Domesticated cotton species provide raw material for the majority of the world's textile industry. Two independent domestication events have been identified in allopolyploid cotton, one in Upland cotton ( Gossypium hirsutum L.) and the other to Egyptian cotton ( Gossypium barbadense L.). However, two diploid cotton species, Gossypium arboreum L. and Gossypium herbaceum L., have been cultivated for several millennia, but their status as independent domesticates has long been in question. Using genome resequencing data, we estimated the global abundance of various repetitive DNAs. We demonstrate that, despite negligible divergence in genome size, the two domesticated diploid cotton species contain different ...


An Examination Of Nucleotypic Effects In Diploid And Polyploid Cotton, Jonathan F. Wendel, S.J. Snodgrass, Josef J. Jareczek Jan 2016

An Examination Of Nucleotypic Effects In Diploid And Polyploid Cotton, Jonathan F. Wendel, S.J. Snodgrass, Josef J. Jareczek

Ecology, Evolution and Organismal Biology Publications

Nucleotypic effects are phenotypic changes related to the total nuclear DNA amount per cell. These effects are commonly observed among and within genera for certain cell types, and the generality of the positive correlation between genome size and cell size has been well established. However, there are few studies of nucleotypic effects which incorporate into the analysis both ploidy level and genome size (given as Mbp determined by 2C values). To test the hypothesis that cell size scales with genome size and ploidy, we measured the guard cell length, epidermal pavement cell surface area, and pollen grain diameter using individuals ...


Evolutionary Conservation And Divergence Of Gene Coexpression Networks In Gossypium (Cotton) Seeds, Jonathan F. Wendel, Guanjing Hu, Ran Hovav, Corrinne E. Grover, Adi Faigenboim-Doron, Noa Kadmon, Justin T. Page, Joshua A. Udall Jan 2016

Evolutionary Conservation And Divergence Of Gene Coexpression Networks In Gossypium (Cotton) Seeds, Jonathan F. Wendel, Guanjing Hu, Ran Hovav, Corrinne E. Grover, Adi Faigenboim-Doron, Noa Kadmon, Justin T. Page, Joshua A. Udall

Ecology, Evolution and Organismal Biology Publications

The cotton genus (Gossypium) provides a superior system for the study of diversification, genome evolution, polyploidization, and human-mediated selection. To gain insight into phenotypic diversification in cotton seeds, we conducted coexpression network analysis of developing seeds from diploid and allopolyploid cotton species and explored network properties. Key network modules and functional associations were identified related to seed oil content and seed weight. We compared species-specific networks to reveal topological changes, including rewired edges and differentially coexpressed genes, associated with speciation, polyploidy, and cotton domestication. Network comparisons among species indicate that topologies are altered in addition to gene expression profiles, indicating ...


Gossypium Anapoides (Malvaceae), A New Species From Western Australia, James Mcd. Stewart, Lyn A. Craven, Curt L. Brubaker, Jonathan F. Wendel Jan 2015

Gossypium Anapoides (Malvaceae), A New Species From Western Australia, James Mcd. Stewart, Lyn A. Craven, Curt L. Brubaker, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

Gossypium anapoides J. M. Stewart, Craven, Brubaker & Wendel (Malvaceae), a new species ofGossypium L. endemic to the north Kimberley region of Western Australia, is described. The species is erect, with multiple, unbranched stems arising from the crown of a woody lignotuber. This trait, along with the presence of an elaiosome on each seed and the results of molecular analyses, places it with the species of Gossypium sect. Grandicalyx (Fryxell) Fryxell and makes it phylogenetically sister to the geographically disjunct species G. cunninghamii Tod. The species is named for the unique raised venation on the adaxial leaf surface that imparts ...


Cenh3 Evolution In Diploids And Polyploids Of Three Angiosperm Genera, Rick E. Masonbrink, Joseph P. Gallagher, Josef J. Jareczek, Simon Renny-Byfield, Corrinne E. Grover, Lei Gong, Jonathan F. Wendel Dec 2014

Cenh3 Evolution In Diploids And Polyploids Of Three Angiosperm Genera, Rick E. Masonbrink, Joseph P. Gallagher, Josef J. Jareczek, Simon Renny-Byfield, Corrinne E. Grover, Lei Gong, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

Centromeric DNA sequences alone are neither necessary nor sufficient for centromere specification. The centromere specific histone, CenH3, evolves rapidly in many species, perhaps as a coevolutionary response to rapidly evolving centromeric DNA. To gain insight into CenH3 evolution, we characterized patterns of nucleotide and protein diversity among diploids and allopolyploids within three diverse angiosperm genera, Brassica, Oryza, and Gossypium (cotton), with a focus on evidence for diversifying selection in the various domains of the CenH3 gene. In addition, we compare expression profiles and alternative splicing patterns for CenH3 in representatives of each genus. All three genera retain both duplicated CenH3 ...


Targeted Capture Of Homoeologous Coding And Noncoding Sequence In Polyploid Cotton, Armel Salmon, Joshua A. Udall, Jeffrey A. Jeddeloh, Jonathan F. Wendel Aug 2012

Targeted Capture Of Homoeologous Coding And Noncoding Sequence In Polyploid Cotton, Armel Salmon, Joshua A. Udall, Jeffrey A. Jeddeloh, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

Targeted sequence capture is a promising technology in many areas in biology. These methods enable efficient and relatively inexpensive sequencing of hundreds to thousands of genes or genomic regions from many more individuals than is practical using whole-genome sequencing approaches. Here, we demonstrate the feasibility of target enrichment using sequence capture in polyploid cotton. To capture and sequence both members of each gene pair (homeologs) of wild and domesticated Gossypium hirsutum, we created custom hybridization probes to target 1000 genes (500 pairs of homeologs) using information from the cotton transcriptome. Two widely divergent samples of G. hirsutum were hybridized to ...


Duplicate Gene Revolution, Homoeologous Recombination, And Transcriptome Characterization In Allopolyploid Cotton, Lex E. Flagel, Jonathan F. Wendel, Joshua A. Udall Jul 2012

Duplicate Gene Revolution, Homoeologous Recombination, And Transcriptome Characterization In Allopolyploid Cotton, Lex E. Flagel, Jonathan F. Wendel, Joshua A. Udall

Ecology, Evolution and Organismal Biology Publications

Modern allotetraploid cotton contains an “A” and “D” genome from an ancestral polyploidy event that occurred approximately 1–2 million years ago. Diploid A- and D-genome species can be compared to the A- and D-genomes found within these allotetraploids to make evolutionary inferences about polyploidy. In this paper we present a comprehensive EST assembly derived from diploid and model allotetraploid cottons and demonstrate several evolutionary inferences regarding genic evolution that can be drawn from these data. We generated a set of cotton expressed sequence tags (ESTs), comprising approximately 4.4 million Sanger and next-generation (454) transcripts supplemented by approximately 152 ...


Initiation And Early Development Of Fiber In Wild And Cultivated Cotton, Kara M. Butterworth, Dean C. Adams, Harry T. Horner, Jonathan F. Wendel Jun 2009

Initiation And Early Development Of Fiber In Wild And Cultivated Cotton, Kara M. Butterworth, Dean C. Adams, Harry T. Horner, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

Cultivated cotton fiber has undergone transformation from short, coarse fibers found in progenitor wild species to economically important, long, fine fibers grown globally. Morphological transformation requires understanding of development of wild fiber and developmental differences between wild and cultivated fiber.We examined early development of fibers, including abundance and placement on seed surface, nucleus position, presence of vacuoles, and fiber size and shape. Four species were studied using microscopic, morphometric, and statistical methods: Gossypium raimondii (wild D genome), Gossypium herbaceum (cultivated A genome), Gossypium hirsutum (wild tetraploid), and Gossypium hirsutum (cultivated tetraploid). Early fiber development is highly asynchronous in G ...


Phylogeny Of The New World Diploid Cottons (Gossypium L., Malvaceae) Based On Sequences Of Three Low-Copy Nuclear Genes, Inés Álvarez, Richard Clark Cronn, Jonathan F. Wendel May 2005

Phylogeny Of The New World Diploid Cottons (Gossypium L., Malvaceae) Based On Sequences Of Three Low-Copy Nuclear Genes, Inés Álvarez, Richard Clark Cronn, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

American diploid cottons (Gossypium L., subgenus Houzingenia Fryxell) form a monophyletic group of 13 species distributed mainly in western Mexico, extending into Arizona, Baja California, and with one disjunct species each in the Galapagos Islands and Peru. Prior phylogenetic analyses based on an alcohol dehydrogenase gene (AdhA) and nuclear ribosomal DNA indicated the need for additional data from other molecular markers to resolve phylogenetic relationships within this subgenus. Toward this end, we sequenced three nuclear genes, the anonymous locus A1341, an alcohol dehydrogenase gene (AdhC), and a cellulose synthase gene (CesA1b). Independent and combined analyses resolved clades ...


Cryptic Trysts, Genomic Mergers, And Plant Speciation, Richard Clark Cronn, Jonathan F. Wendel Jan 2004

Cryptic Trysts, Genomic Mergers, And Plant Speciation, Richard Clark Cronn, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

It has long been recognized that interspecific hybridization is common in plants, enhancing processes of diversification and speciation. With the widespread utilization of molecular tools, interspecific hybridization – as revealed through incongruence among two or more phylogenetic data sets – is now inferred to be even more prevalent than indicated by morphological and cytogenetic evidence. UsingGossypium as an example, we show how multiple molecular markers have implicated a high frequency of historical hybridization between lineages whose modern descendants are strongly isolated by geography and intrinsic genetic barriers. For example, transoceanic dispersal of propagules from Africa to the New World led to ...