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Article
Characterization and expression analysis of GLABRA3 (GL3) genes in cotton: insights into trichome development and hormonal regulation
GLABRA3 (GL3) and ENHANCER OF GLABRA3 (EGL3) genes encode a typical helix-loop-helix (bHLH) transcription factors that primarily regulate trichome branching and root hair development, DNA endoreduplication, trich...
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Article
The GaKAN2, a KANADI transcription factor, modulates stem trichomes in Gossypium arboreum
GaKAN2, a member of the KANADI family, was found to be widely expressed in the cotton tissues and regulates trichome development through complex pathways.
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Article
Open AccessDifferentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species
Cotton stem trichomes and seed fibers are each single celled structures formed by protrusions of epidermal cells, and were found sharing the overlap** molecular mechanism. Compared with fibers, cotton stem t...
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Article
GaHD1, a candidate gene for the Gossypium arboreum SMA-4 mutant, promotes trichome and fiber initiation by cellular H2O2 and Ca2+ signals
Cotton fibers are initiated from the epidermal cells of the ovule before or on the day of anthesis. Gossypium arboreum SMA-4 mutant contains recessive mutation (sma-4(ha)) and has the phenotypes of fibreless seed...
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Article
Preferential insertion of a Ty1 LTR-retrotransposon into the A sub-genome’s HD1 gene significantly correlated with the reduction in stem trichomes of tetraploid cotton
Stem trichomes and seed fibers originate from epidermal cells and partially share a regulatory pathway at the molecular level. In Gossypium barbadense, two insertions of a Ty1 long-terminal repeat-retrotransposon...
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Article
Identification and map** of a photoperiod response gene (QPpd.zafu-4A) on wild emmer wheat (Triticum turgidum L.) chromosome 4AL
Heading date (HD) is an important agronomic trait, influencing directly or indirectly yield and quality traits. Previous experiments showed that the chromosome arm substitution line (CASL) 4AL of wild emmer in...
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Article
A genetic system on chromosome arm 1BL of wild emmer causes distorted segregation in common wheat
Nonrandom segregation ratios of alleles ‘segregation distortion’ can have a striking impact on transmission genetics, and with widespread availability of genetic markers has been shown to be a frequent phenome...
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Article
Open AccessDivergence and evolution of cotton bHLH proteins from diploid to allotetraploid
Polyploidy is considered a major driving force in genome expansion, yielding duplicated genes whose expression may be conserved or divergence as a consequence of polyploidization.
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Article
Genetic fine map** and candidate gene analysis of the Gossypium hirsutum Ligon lintless-1 (Li1) mutant on chromosome 22(D)
Ligon lintless-1 (Li1) is a Gossypium hirsutum mutant that is controlled by a dominant gene that arrests the development of cotton fiber after anthesis. Two F2 map** populations were developed from mutant (Li1 ...
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Article
Molecular characterization of a transcriptionally active Ty1/copia-like retrotransposon in Gossypium
A transcriptionally active Ty1/ copia -like retrotransposon was identified in the genome of Gossypium barbadense . The di...
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Article
Genome-wide investigation and transcriptome analysis of the WRKY gene family in Gossypium
WRKY transcription factors play important roles in various stress responses in diverse plant species. In cotton, this family has not been well studied, especially in relation to fiber development. Here, the ge...
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Article
Cot-based sampling of genomes for polymorphic low-copy DNA
DNA polymorphisms are powerful tools for many evolutionary and genomic studies in plants including molecular breeding. Single nucleotide polymorphisms (SNPs) are the most elemental DNA marker for genomic studi...
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Article
Open AccessAnalyses of the sucrose synthase gene family in cotton: structure, phylogeny and expression patterns
In plants, sucrose synthase (Sus) is widely considered as a key enzyme involved in sucrose metabolism. Several paralogous genes encoding different isozymes of Sus have been identified and characterized in mult...
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Article
QTL alleles for improved fiber quality from a wild Hawaiian cotton, Gossypium tomentosum
Seventeen backcross-self families from crosses between two Gossypium hirsutum recurrent parent lines (CA3084, CA3093) and G. tomentosum were used to identify quantitative trait loci (QTLs) controlling fiber quali...
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Article
Open AccessA draft physical map of a D-genome cotton species (Gossypium raimondii)
Genetically anchored physical maps of large eukaryotic genomes have proven useful both for their intrinsic merit and as an adjunct to genome sequencing. Cultivated tetraploid cottons, Gossypium hirsutum and G. ba...
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Chapter
Comparative Genomics of Cotton and Arabidopsis
Upland cotton (G. hirsutum), a tetraploid species, evolved from a reunion of two diploid species (most probably G. herbaceum and G. raimondii with A and D genomes respectively) about 1-2 million year ago. Cytogen...
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Article
Genetic map** and comparative analysis of seven mutants related to seed fiber development in cotton
Map** of genes that play major roles in cotton fiber development is an important step toward their cloning and manipulation, and provides a test of their relationships (if any) to agriculturally-important QT...
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Article
Genetic map** of a cross between Gossypium hirsutum (cotton) and the Hawaiian endemic, Gossypium tomentosum
The existence of five tetraploid species that derive from a common polyploidization event about 1 million years ago makes Gossypium (cotton) an attractive genus in which to study polyploid evolution and offers op...
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Article
Unravelling angiosperm genome evolution by phylogenetic analysis of chromosomal duplication events
Conservation of gene order in vertebrates is evident after hundreds of millions of years of divergence1,2, but comparisons of the Arabidopsis thaliana sequence3 to partial gene orders of other angiosperms (flower...
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Article
Microdissection of chromosome 7B of common wheat and cloning of low-copy specific DNA sequences
The 7B chromosome of common wheat was microdissected from pollen mother cells of the 78 monosomic line of common wheat cv. Chinese Spring (CS). After proteinase K and DNA topoisomerase I treatments, the isolat...
