Lisa W. Alexander
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View article: Production and verification of novel Osmanthus hybrids
Production and verification of novel Osmanthus hybrids Open
Osmanthus fragrans Lour. is prized for its fragrant, cool-season blooms, smooth leaves, and compact tree form; however, the species is limited in production and use to USDA Hardiness Zones 7 and higher. Increasing the total amount of genet…
View article: Powdery Mildew of Bigleaf Hydrangea: Biology, Control, and Breeding Strategies for Resistance
Powdery Mildew of Bigleaf Hydrangea: Biology, Control, and Breeding Strategies for Resistance Open
Hydrangea macrophylla, commonly known as bigleaf, garden, French, or florist hydrangea, is the most economically important member of the Hydrangea genus, with a breeding history spanning hundreds of years. Bigleaf hydrangea breeding improv…
View article: Two haplotype-resolved genomes reveal important flower traits in bigleaf hydrangea (<i>Hydrangea macrophylla</i>) and insights into Asterid evolution
Two haplotype-resolved genomes reveal important flower traits in bigleaf hydrangea (<i>Hydrangea macrophylla</i>) and insights into Asterid evolution Open
The Hydrangea genus belongs to the Hydrangeaceae family, in the Cornales order of flowering plants, which early diverged among the Asterids, and includes several species that are commonly used ornamental plants. Of them, Hydrangea macrophy…
View article: Genome Size, Flowering, and Breeding Compatibility in Osmanthus Accessions
Genome Size, Flowering, and Breeding Compatibility in Osmanthus Accessions Open
Extending the range of Osmanthus species into more cold-hardy climates would open new opportunities for adoption and use of these species by growers, landscapers, and the public. Breeding improvement is hindered by few available cultivars …
View article: Precipitation, Temperature, and Population Structure Influence Genetic Diversity of Oakleaf Hydrangea Throughout Its Native Range
Precipitation, Temperature, and Population Structure Influence Genetic Diversity of Oakleaf Hydrangea Throughout Its Native Range Open
Oakleaf hydrangea ( Hydrangea quercifolia ) is an understory shrub native to the southeastern United States. The species occupies a relatively small native range, and little is known about its demography, genetic diversity, or needs for co…
View article: Growth, Gas Exchange, and Mineral Nutrients of Hydrangea Hybrids Irrigated with Saline Water
Growth, Gas Exchange, and Mineral Nutrients of Hydrangea Hybrids Irrigated with Saline Water Open
Hydrangeas are popular landscape plants that are widely grown in many parts of the world. The objective of this study was to evaluate the salinity tolerance of three novel Dichroa × hydrangea hybrids [ Dichroa febrifuga ‘Yamaguchi Hardy’ ×…
View article: Horticultural Characterization of Wild Hydrangea quercifolia Seedlings Collected Throughout the Species Native Range
Horticultural Characterization of Wild Hydrangea quercifolia Seedlings Collected Throughout the Species Native Range Open
Oakleaf hydrangea ( Hydrangea quercifolia Bartr.) is an understory shrub native to the southeastern United States. Hydrangeas are popular ornamental landscape plants; however, little is known about the diversity in horticulturally importan…
View article: Genomic Resource Development for Hydrangea (Hydrangea macrophylla (Thunb.) Ser.)—A Transcriptome Assembly and a High-Density Genetic Linkage Map
Genomic Resource Development for Hydrangea (Hydrangea macrophylla (Thunb.) Ser.)—A Transcriptome Assembly and a High-Density Genetic Linkage Map Open
Hydrangea (Hydrangea macrophylla) is an important ornamental crop that has been cultivated for more than 300 years. Despite the economic importance, genetic studies for hydrangea have been limited by the lack of genetic resources. Genetic …
View article: Relationship of Imported Fire Ant (Hymenoptera: Formicidae) Integument Coloration to Cuticular Hydrocarbon and Venom Alkaloid Profiles
Relationship of Imported Fire Ant (Hymenoptera: Formicidae) Integument Coloration to Cuticular Hydrocarbon and Venom Alkaloid Profiles Open
Red imported fire ant (Solenopsis invicta Buren; RIFA) and black imported fire ant (Solenopsis richteri Forel (Hymenoptera: Formicidae); BIFA) are considered distinct species with introgression via a reproductively functional hybrid (HIFA)…
View article: Comparative Performance of Reduced-risk Fungicides and Biorational Products in Management of Postharvest Botrytis Blight on Bigleaf Hydrangea Cut Flowers
Comparative Performance of Reduced-risk Fungicides and Biorational Products in Management of Postharvest Botrytis Blight on Bigleaf Hydrangea Cut Flowers Open
Botrytis cinerea is one of the problematic and notorious postharvest pathogens of bigleaf hydrangea ( Hydrangea macrophylla ) cut flowers. It causes flower blight, leaf blight, and stem rot, reducing the ornamental value (such as longevity…
View article: Genome-wide association studies for inflorescence type and remontancy in Hydrangea macrophylla
Genome-wide association studies for inflorescence type and remontancy in Hydrangea macrophylla Open
Inflorescence type and remontancy are two valuable traits in bigleaf hydrangea ( Hydrangea macrophylla L.) and both are recessively inherited. Molecular marker-assisted selection (MAS) can greatly reduce the time necessary to breed cultiva…
View article: Ploidy Level Influences Pollen Tube Growth and Seed Viability in Interploidy Crosses of Hydrangea macrophylla
Ploidy Level Influences Pollen Tube Growth and Seed Viability in Interploidy Crosses of Hydrangea macrophylla Open
All Hydrangea macrophylla cultivars tested to date are diploid or triploid and triploid H. macrophylla have thicker stems, larger flowers, and larger stoma compared to related diploids. It is unknown whether interploidy cross…
View article: Growth, Flowering, and Powdery Mildew-related Responses of Witchhazels in Tennessee
Growth, Flowering, and Powdery Mildew-related Responses of Witchhazels in Tennessee Open
Witchhazel ( Hamamelis sp.) cultivars are now available in an array of forms and flower colors, including several native, pollinator-friendly cultivars. However, little is known about response of witchhazel cultivars to powdery mildew ( Po…
View article: Genetic Diversity and Population Structure Analysis of Bigleaf Hydrangea Using Genotyping-by-sequencing
Genetic Diversity and Population Structure Analysis of Bigleaf Hydrangea Using Genotyping-by-sequencing Open
Hydrangea macrophylla (bigleaf hydrangea) is one of the most important floral and nursery crops worldwide. However, breeding of new bigleaf hydrangea cultivars has been hampered by a long breeding cycle and lack of genetic resources. This …
View article: Growth, Cold-hardiness, and Flowering of Sweet Olive, Fortune’s Osmanthus, Fragrant Tea Olive, and Holly Tea Olive in Tennessee
Growth, Cold-hardiness, and Flowering of Sweet Olive, Fortune’s Osmanthus, Fragrant Tea Olive, and Holly Tea Olive in Tennessee Open
Production and use of sweet olive ( Osmanthus armatus ), fragrant tea olive ( O . fragrans ), holly tea olive ( O . heterophyllus ), and fortune’s osmanthus ( O . x fortunei ) as a landscape plant is currently limited to U.S. Department of…
View article: ‘Sunglow’ American Witchhazel
‘Sunglow’ American Witchhazel Open
The genus Hamamelis L. (Hamamelidaceae R. Br., the witchhazel family) is represented by about six species distributed across the temperate regions of North America and Asia (Wen and Shi, 1999;Leonard, 2006).Although as many as 15 species a…
View article: Pollen gene flow, male reproductive success, and genetic correlations among offspring in a northern red oak (Quercus rubra L.) seed orchard
Pollen gene flow, male reproductive success, and genetic correlations among offspring in a northern red oak (Quercus rubra L.) seed orchard Open
Northern red oak is a high-value hardwood used for lumber, furniture and veneer. Intensively managed northern red oak seed orchards are required to obtain genetic gain for trait improvement. Data from conifer seed orchards and natural and …
View article: Production of Triploid Hydrangea macrophylla via Unreduced Gamete Breeding
Production of Triploid Hydrangea macrophylla via Unreduced Gamete Breeding Open
Hydrangea macrophylla (Thunb.) Ser., florist’s or bigleaf hydrangea, is the most economically important member of the Hydrangea genus, which accounted for over $120,000,000 in U.S. nursery sales in 2014. Both diploid and triploid H. macrop…
View article: Rapid, Effective DNA Isolation from Osmanthusvia Modified Alkaline Lysis
Rapid, Effective DNA Isolation from Osmanthusvia Modified Alkaline Lysis Open
Variability of leaf structure and presence of secondary metabolites in mature leaf tissue present a challenge for reliable DNA extraction from Osmanthus species and cultivars. The objective of this study was to develop a universal rapid, e…
View article: Hybridization of downregulated-COMT transgenic switchgrass lines with field-selected switchgrass for improved biomass traits
Hybridization of downregulated-COMT transgenic switchgrass lines with field-selected switchgrass for improved biomass traits Open
View article: ‘Queen of Hearts’ Oakleaf Hydrangea
‘Queen of Hearts’ Oakleaf Hydrangea Open