Temperate Tree Fruits of North America: Malus Mill., Prunus L., Diospyros L., and Asimina Adans

Volk, Gayle M.

doi:10.1007/978-3-319-97121-6_11

Cited by 10 publications

(10 citation statements)

References 47 publications

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“…These hardy trees routinely grow in conditions in which the vast majority of cultivated apple ( Malus × domestica Borkh.) cultivars cannot survive and reproduce in; M. fusca can withstand winters of −46°C or colder (Fiala, 1994), can grow on beach heads, in sandy soils, exposed to brackish water and in waterlogged conditions (USDA Agricultural Research Service, 2015; Volk, 2019). Moreover, M. fusca has been found to be resistant to fire blight ( Erwinia amylovora ), a devastating disease that is endemic to North America, but is now found worldwide (Bonn & van der Zwet, 2000; Dougherty et al., 2021; Emeriewen et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The Malus genus consists of 25 to 47 recognized species and additional hybrids (Robinson et al., 2001). Of those species, M. fusca and the other North American natives have been isolated from Asian and European gene pools used in the domestication of apple (Volk, 2019). Thus, M. fusca and its other North American relatives, offer untapped potential for unique disease resistance and abiotic tolerance traits.…”

Section: Introductionmentioning

confidence: 99%

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A haplotype resolved chromosome‐scale assembly of North American wild apple Malus fusca and comparative genomics of the fire blight Mfu10 locus

Mansfeld,

Yocca,

et al. 2023

The Plant Journal

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SUMMARYThe Pacific crabapple (Malus fusca) is a wild relative of the commercial apple (Malus × domestica). With a range extending from Alaska to Northern California, M. fusca is extremely hardy and disease resistant. The species represents an untapped genetic resource for the development of new apple cultivars with enhanced stress resistance. However, gene discovery and utilization of M. fusca have been hampered by the lack of genomic resources. Here, we present a high‐quality, haplotype‐resolved, chromosome‐scale genome assembly and annotation for M. fusca. The genome was assembled using high‐fidelity long‐reads and scaffolded using genetic maps and high‐throughput chromatin conformation capture sequencing, resulting in one of the most contiguous apple genomes to date. We annotated the genome using public transcriptomic data from the same species taken from diverse plant structures and developmental stages. Using this assembly, we explored haplotypic structural variation within the genome of M. fusca, identifying thousands of large variants. We further showed high sequence co‐linearity with other domesticated and wild Malus species. Finally, we resolve a known quantitative trait locus associated with resistance to fire blight (Erwinia amylovora). Insights gained from the assembly of a reference‐quality genome of this hardy wild apple relative will be invaluable as a tool to facilitate DNA‐informed introgression breeding.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A haplotype resolved chromosome‐scale assembly of North American wild apple Malus fusca and comparative genomics of the fire blight Mfu10 locus

Mansfeld,

Yocca,

et al. 2023

The Plant Journal

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“…sylvestris Mill. in Europe contributed to the genome of M. domestica through introgressive hybridization (Cornille et al ., 2014; Volk et al ., 2015; Volk, 2019). The domestication of apple has resulted in thousands of cultivars with large fruits, high yield, firm flesh, and high sugar content (Duan et al ., 2017).…”

Section: Introductionmentioning

confidence: 99%

Evidence for host–microbiome co‐evolution in apple

et al. 2021

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Plants evolved in association with a diverse community of microorganisms. The effect of plant phylogeny and domestication on host-microbiome co-evolutionary dynamics are poorly understood.Here we examined the effect of domestication and plant lineage on the composition of the endophytic microbiome of 11 Malus species, representing three major groups: domesticated apple (M. domestica), wild apple progenitors, and wild Malus species.The endophytic community of M. domestica and its wild progenitors showed higher microbial diversity and abundance than wild Malus species. Heirloom and modern cultivars harbored a distinct community composition, though the difference was not significant. A community-wide Bayesian model revealed that the endophytic microbiome of domesticated apple is an admixture of its wild progenitors, with clear evidence for microbiome introgression, especially for the bacterial community. We observed a significant correlation between the evolutionary distance of Malus species and their microbiome.This study supports co-evolution between Malus species and their microbiome during domestication. This finding has major implications for future breeding programs and our understanding of the evolution of plants and their microbiomes.

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“…These hardy trees routinely grow in conditions in which the vast majority of cultivated apple ( Malus × domestica Borkh.) cultivars cannot survive and reproduce in; M. fusca can withstand winters of −46°C or colder (Fiala 1994), can grow on beach heads, in sandy soils, exposed to brackish water and in waterlogged conditions (USDA Agricultural Research Service, 2015; Volk, 2019). Moreover, M. fusca has been found to be resistant to fire blight ( Erwinia amylovora ), a devastating disease that is endemic to North America, but now found worldwide (Dougherty et al, 2021; Emeriewen et al, 2014; Bonn & van der Zwet, 2001; Vanneste, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…The Malus genus consists of 25 to 47 recognized species and additional hybrids (Robinson et al, 2001). Of those species, M. fusca and the other North American natives have been isolated from Asian and European gene pools used in the domestication of apple (Volk, 2019). Thus, M. fusca and its other North American relatives, offer untapped potential for unique disease resistance and abiotic tolerance traits.…”

Section: Introductionmentioning

confidence: 99%

A haplotype resolved chromosome-scale assembly of North American wild appleMalus fuscaand comparative genomics of the fire blightMfu10locus. Genome of the Pacific CrabappleMalus fusca

Mansfeld

Yocca

et al. 2023

Preprint

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The Pacific crabapple (Malus fusca) is a wild relative of the commercial apple (Malus x domestica). With a range extending from Alaska to Northern California, M. fusca is extremely hardy and disease resistant. The species represents an untapped genetic resource for development of new apple cultivars with enhanced stress resistance. However, gene discovery and utilization of M. fusca has been hampered by the lack of genomic resources. Here, we present a high-quality, haplotype-resolved, chromosome-scale genome assembly and annotation for M. fusca. The genome was assembled using high-fidelity long-reads and scaffolded using genetic maps and high-throughput chromatin conformation capture sequencing, resulting in one of the most contiguous apple genomes to date. We annotated the genome using public transcriptomic data from the same species taken from diverse plant structures and developmental stages. Using this assembly, we explored haplotypic structural variation within the genome of M. fusca, identifying thousands of large variants. We further showed high sequence co-linearity with other domesticated and wild Malus species. Finally, we resolve a known quantitative trait locus associated with resistance to fire blight (Erwinia amylovora). Insights gained from the assembly of a reference-quality genome of this hardy wild apple relative will be invaluable as a tool to facilitate DNA-informed introgression breeding.

show abstract

Temperate Tree Fruits of North America: Malus Mill., Prunus L., Diospyros L., and Asimina Adans

Cited by 10 publications

References 47 publications

A haplotype resolved chromosome‐scale assembly of North American wild apple Malus fusca and comparative genomics of the fire blight Mfu10 locus

A haplotype resolved chromosome‐scale assembly of North American wild apple Malus fusca and comparative genomics of the fire blight Mfu10 locus

Evidence for host–microbiome co‐evolution in apple

A haplotype resolved chromosome-scale assembly of North American wild appleMalus fuscaand comparative genomics of the fire blightMfu10locus. Genome of the Pacific CrabappleMalus fusca

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