scholarly journals Growing Shrub Willow (Salix spp.) on Newly Reclaimed Minesoil in Northeastern West Virginia

2017 ◽  
Author(s):  
Bartholomew Caterino
Keyword(s):  
West Virginia ◽  
Shrub Willow ◽  
Reclaimed Minesoil ◽  
Salix Spp

scholarly journals Nonadditive gene expression is correlated with nonadditive phenotypic expression in interspecific triploid hybrids of willow (Salix spp.)

2021 ◽  
Author(s):  
Craig H Carlson ◽  
Yongwook Choi ◽  
Agnes P Chan ◽  
Christopher D Town ◽  
Lawrence B Smart
Keyword(s):  
Gene Expression ◽  
Differentially Expressed Genes ◽  
Phenotypic Expression ◽  
Differentially Expressed ◽  
Energy Crop ◽  
Bioenergy Crops ◽  
Shrub Willow ◽  
Number Variation ◽  
Willow Breeding ◽  
Salix Spp

Abstract Many studies have highlighted the complex and diverse basis for heterosis in inbred crops. Despite the lack of a consensus model, it is vital that we turn our attention to understanding heterosis in undomesticated, heterozygous, and polyploid species, such as willow (Salix spp.). Shrub willow is a dedicated energy crop bred to be fast-growing and high yielding on marginal land without competing with food crops. A trend in willow breeding is the consistent pattern of heterosis in triploids produced from crosses between diploid and tetraploid species. Here, we test whether differentially expressed genes are associated with heterosis in triploid families derived from diploid S. purpurea, diploid S. viminalis, and tetraploid S. miyabeana parents. Three biological replicates of shoot tips from all family progeny and parents were collected after 12 weeks in the greenhouse and RNA extracted for RNA-Seq analysis. This study provides evidence that nonadditive patterns of gene expression are correlated with nonadditive phenotypic expression in interspecific triploid hybrids of willow. Expression-level dominance was most correlated with heterosis for biomass yield traits and was highly enriched for processes involved in starch and sucrose metabolism. In addition, there was a global dosage effect of parent alleles in triploid hybrids, with expression proportional to copy number variation. Importantly, differentially expressed genes between family parents were most predictive of heterosis for both field and greenhouse collected traits. Altogether, these data will be used to progress models of heterosis to complement the growing genomic resources available for the improvement of heterozygous perennial bioenergy crops.

scholarly journals Differential Susceptibility of Diverse Salix spp. to Melampsora americana and Melampsora paradoxa

Plant Disease ◽  
2020 ◽  
Vol 104 (11) ◽  
pp. 2949-2957
Author(s):  
Chase R. Crowell ◽  
Mariami M. Bekauri ◽  
Ali R. Cala ◽  
Patrick McMullen ◽  
Lawrence B. Smart ◽  
...  
Keyword(s):  
United States ◽  
Differential Susceptibility ◽  
Resistance Breeding ◽  
Geographic Region ◽  
Host Susceptibility ◽  
Northeastern United States ◽  
Shrub Willow ◽  
Phylogenetic Studies ◽  
Serious Disease ◽  
Salix Spp

Melampsora spp. willow rust is the most serious disease of shrub willow bioenergy production in the northeastern United States. Recent phylogenetic studies have identified several Melampsora spp. present on willow in the Northeast; however, in-depth understanding of Melampsora spp. host susceptibility remain unresolved. In this study, a panel of 82 rust isolates collected from the northeastern United States were genotyped via ribosomal DNA sequencing and a subset of these isolates were assayed for host susceptibility. This work revealed that Melampsora americana is the most prevalent species in the sampled geographic region and that there is potential for rust resistance breeding using the Salix spp. taxa assayed. Additionally, leaf morphology traits of these Salix spp. hosts were quantified for correlation analysis, revealing that trichome density and stomata density are possible contributors to resistance. This work provides foundational rust pathology information, which is crucial for M. americana resistance breeding.

scholarly journals Correlations of expression of cell wall biosynthesis genes with variation in biomass composition in shrub willow (Salix spp.) biomass crops

2011 ◽  
Vol 8 (4) ◽  
pp. 775-788 ◽  
Author(s):  
Michelle J. Serapiglia ◽  
Kimberly D. Cameron ◽  
Arthur J. Stipanovic ◽  
Lawrence B. Smart
Keyword(s):  
Cell Wall ◽  
Biomass Composition ◽  
Cell Wall Biosynthesis ◽  
Shrub Willow ◽  
Biomass Crops ◽  
Salix Spp
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