Galápagos Islands Insects: Colonization, Structure, and Evolution

Mapes, Carol C.; Dorchin, Netta; Buss, Eileen A.; Moya‐Raygoza, Gustavo; Franz, Gérald; Handler, Alfred M.; Hoy, Marjorie A.; Striganova, Bella R.; Goula, Marta; Northfield, Tobin D.; Mizell, Russell F.; Overholt, William A.; Conlong, Des E.; Sétamou, Mamoudou; Cardwell, Kitty F.; Schulthess, Fritz; Kfir, Rami; Overholt, William A.; Goebel, Régis; Rashidan, Kia; Guertin, Claude; Cabana, Jean; Downie, Doug; Orphanides, George M.; Arthurs, Steven; Sánchez, Norma E.; Wysiecki, Marı́a L. De; Heppner, John B.; Aldryhim, Yousif; Dunford, James C.; Sims, Kelly R.; Capinera, John L.; Sword, Gregory A.; Riddick, Eric W.; Choate, Paul M.; Brewer, Wayne

doi:10.1007/978-1-4020-6359-6_1019

Cited by 5 publications

(5 citation statements)

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“…An explanation for this correlation could be the presence of silicon in volcanic soil as it has been shown to boost plants' resistance to pests by accumulating magnesium at the base of trichomes (Ma, 2004). Some S. galapagense accessions originating from the Galápagos Islands have been exposed to dry and saline growing conditions (Pailles et al, 2020) and high insect pressure (Peck, 2008), thus may represent a generous source of alleles that can be explored to improve biotic and abiotic stress. As this species can easily hybridize with cultivated tomatoes (Rick, 1961), they have been used as donors for stress tolerance genes, which could be transferred into commercial varieties by introgression breeding (Zamir, 2001).…”

Section: Discussionmentioning

confidence: 99%

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area in Solanum galapagense

Henzler,

Khazaei

2024

GenResJ

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Glandular trichomes are physical and chemical barriers used by some tomato wild relatives to confer resistance against insect pests and diseases transmitted by them. Solanum galapagense has been identified as one of the potential sources of insect pest resistance. The present study aimed to examine the trichome diversity and acylsugar concentration of 26 accessions of S. galapagense along with one cultivated tomato (S. lycopersicum) and one cherry tomato (S. l. cerasiforme) cultivar. The results revealed large phenotypic variation among S. galapagense accessions for all studied traits. The S. galapagense accessions had significantly higher trichome types IV density on the adaxial and abaxial surfaces of the leaf and greater acylsugar concentration but a smaller leaflet area than the cultivated tomato. The selected cherry tomato line represents greater trichome type IV density and acylsugar concentration than other groups. The acylsugar concentration was positively associated with trichome type IV but negatively associated with trichome type V on both leaf surfaces. DNA markers revealed the presence of two previously identified whitefly-resistance alleles in S. galapagense accessions. This study will support breeding programs aiming to improve insect pest resistance in tomato cultivars using crop wild relatives.

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Section: Discussionmentioning

confidence: 99%

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area in Solanum galapagense

Henzler,

Khazaei

2024

GenResJ

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“…The S. galapagense accessions originating from the Galápagos Islands have been exposed to dry and saline growing conditions (Pailles et al, 2020) and high insect pressure (Peck, 2008), thus representing a generous source of alleles that can be explored to improve biotic and abiotic stress.…”

Section: Discussionmentioning

confidence: 99%

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area inSolanum galapagense

Henzler

Khazaei

2022

Preprint

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Glandular trichomes are physical and chemical barriers used by some tomato wild relatives to confer resistance against insect pests and diseases transmitted by them. Solanum galapagense has been identified as one of the potential sources of insect pest resistance. The present study aimed to examine the trichome diversity and acylsugar concentration of 26 accessions of S. galapagense along with one cultivated tomato (S. lycopersicum) and one cherry tomato (S. l. cerasiforme) cultivar. The results revealed large genetic variation among S. galapagense accessions for all studied traits. The S. galapagense accessions had significantly higher trichome types IV on the adaxial and abaxial surfaces of the leaf and greater acylsugar concentration but smaller leaflet area than cultivated tomato. The selected cherry tomato line represents greater trichome type IV and acylsugar than other groups. The acylsugar concentration was positively associated with trichome type IV but negatively associated with trichome type V on both leaf surfaces. Leaflet area was negatively associated with trichome IV density and acylsugar concentration. Analysis of DNA markers revealed the presence of two previously identified whitefly-resistance alleles in S. galapagense accessions. This study will support breeding programs aiming to improve insect pest resistance in tomato cultivars using crop wild relatives.

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“…Most brachypterous individuals of Cymindis punctigera punctigera live in the Mojave, Sonoran and Chihuahuan deserts, so desert associated conditions almost certainly play a role in this observed pattern. Wing reduction or loss has been tied to hot, dry, desert conditions in members of several insect taxa (Brues 1903; Peck 2008). This is partly because wing surfaces provide a major outlet for water loss and because of this, are more readily selected against in areas with these condition (Tinaut 1992).…”

Section: Discussionmentioning

confidence: 99%

A taxonomic revision of the Cymindis (Pinacodera) limbata species group (Coleoptera, Carabidae, Lebiini), including description of a new species from Florida, U.S.A.

Hunting¹

2013

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The Cymindis (Pinacodera) limbata species group (Coleoptera, Carabidae, Lebiini) is a precinctive New World taxon with ranges extended from portions of temperate southeastern Canada and the U.S.A. through the montane regions of Mexico, south to the Isthmus of Tehuantepec. The group is distinguishable from all other members of the subgenus Pinacodera by males possessing a distinctive sclerite (endophallic plate) at the apex of the endophallus. In the past, a lack of material and misunderstandings of range of variation within species have contributed to confusion about how many species there really are.This revision of the limbata species group includes a classification, a key to groups within the subgenus Pinacodera and species within the limbata group, descriptions of species, re-rankings and new synonymies. In total 10 taxa are treated, with 6 new synonyms proposed, 1 new combination introduced and 1 new species described: Cymindis (Pinacodera) rufostigma (type locality: Archbold Biological Station, Highlands County, Florida, U.S.A.). Each taxon is characterized in terms of structural features of adults, habitat, geographical distribution, and chorological affinities. Available ecological information and treatments of variation are included.

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Galápagos Islands Insects: Colonization, Structure, and Evolution

Cited by 5 publications

References 0 publications

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area in Solanum galapagense

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area in Solanum galapagense

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area inSolanum galapagense

A taxonomic revision of the Cymindis (Pinacodera) limbata species group (Coleoptera, Carabidae, Lebiini), including description of a new species from Florida, U.S.A.

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