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Miller KB, Michat MC, Ferreira Jr N. Reclassification of Cybistrinae Sharp, 1880 in the Neotropical Region (Coleoptera, Adephaga, Dytiscidae), with description of new taxa. Zookeys 2024; 1188:125-168. [PMID: 38230379 PMCID: PMC10790577 DOI: 10.3897/zookeys.1188.110081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/03/2023] [Indexed: 01/18/2024] Open
Abstract
The classification of the Neotropical Cybistrinae Sharp, 1880 (Coleoptera: Adephaga: Dytiscidae) is extensively revised based on a phylogenetic analysis of morphological features of the group. A new genus, Nilssondytesgen. nov. is described for a unique new species, Nilssondytesdiversussp. nov. from Venezuela. The New World genus, Megadytes Sharp, 1882, with several subgenera, was found to not be monophyletic. The type species of Megadytes, Dytiscuslatus Fabricius, 1801 and the species Cybisterparvus Trémouilles, 1984 were found to be monophyletic together, and phylogenetically more closely related to Cybister Curtis, 1827 than to other species assigned to Megadytes sensu stricto, which were found to also be monophyletic. The name Megadytes is here restricted to include only Megadyteslatus and Megadytesparvus. These two species assigned to this newly restricted genus concept are reviewed and diagnosed. A new genus, Metaxydytesgen. nov., is erected to include all the other species currently assigned to Megadytes sensu stricto. The current subgenus names assigned to Megadytes, Bifurcitus Brinck, 1945, Paramegadytes Trémouilles & Bachmann, 1980, and Trifurcitus Brinck, 1945, are elevated to genus rank since they are variously paraphyletic. The two species assigned to Cybister (Neocybister) Miller, Bergsten & Whiting, 2007, Cybister (Neocybister) festae Griffini, 1895, and Cybister (Neocybister) puncticollis (Brullé, 1837) re reviewed and diagnosed with the former redescribed and its type specimens considered for the first time since its description. Another evidently new species and possible new genus, Megadytes species, IR57 (Ribera et al. 2008), from Peru, is also characterized, but not formally treated because of lack of important data for the single, partial specimen. Diagnostic features are illustrated for the entire group.
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Affiliation(s)
- Kelly B. Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001, USAUniversity of New MexicoAlbuquerqueUnited States of America
| | - Mariano C. Michat
- Instituto de Biodiversidad y Biología Experimental y Aplicada, CONICET-Universidad de Buenos Aires, Buenos Aires, ArgentinaCONICET-Universidad de Buenos AiresBuenos AiresArgentina
| | - Nelson Ferreira Jr
- Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, BrasiUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
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Miller KB, Benetti CJ, Michat MC. Miradessus gen. nov. from South America described for two species previously in Amarodytes Régimbart, 1900 and two new species (Arthropoda, Insecta, Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini). Zookeys 2023; 1176:13-28. [PMID: 37654984 PMCID: PMC10466110 DOI: 10.3897/zookeys.1176.104980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/14/2023] [Indexed: 09/02/2023] Open
Abstract
Miradessusgen. nov. is described for two previously described species, Amarodytespulchellus Guignot, 1955 from Colombia, with new records from Venezuela, and A.plaumanni Gschwendtner, 1935, from Brazil, and two previously unknown species, Miradessusbenisp. nov., from Bolivia and Peru, and Miradessusrikaesp. nov. from Ecuador. The genus is characterized by 1) occipital line absent; 2) basal pronotal striae present; 3) basal elytral stria absent; 4) sutural elytral stria absent; 5) transverse carina on elytral epipleuron at humeral angle absent; 6) distinct marginal bead on anterior clypeal margin absent; and 7) male median lobe deeply multilobed with a dorsal portion separate from a unilobed or bilobed ventral portion.
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Affiliation(s)
- Kelly B. Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001, USAUniversity of New MexicoAlbuquerqueUnited States of America
| | - Cesar J. Benetti
- Departamento de Biodiversidad y Gestión Ambiental, Facultad de Ciencias Biológicas y Ambientales, Universidad de León, Campus de Vegazana, 24071, León, SpainUniversidad de LeónLeónSpain
- Coordenação de Biodiversidade, Programa de Pós-Graduação em Entomologia (PPGEnt), Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067-375, Manaus, AM, BrazilInstituto Nacional de Pesquisas da Amazônia (INPA)ManausBrazil
| | - Mariano C. Michat
- Faculty of Exact and Natural Sciences, Department of Biodiversity and Experimental Biology, Laboratory of Entomology, Institute of Biodiversity and Experimental and Applied Biology (IBBEA), CONICET-University of Buenos Aires, Buenos Aires, ArgentinaCONICET-University of Buenos AiresBuenos AiresArgentina
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Hubbard NA, Miller KB, Aloi J, Bajaj S, Wakabayashi KT, Blair RJR. Evaluating instrumental learning and striatal-cortical functional connectivity in adolescent alcohol and cannabis use. Addict Biol 2023; 28:e13258. [PMID: 36577718 PMCID: PMC10173870 DOI: 10.1111/adb.13258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022]
Abstract
Adolescence is a vulnerable time for the acquisition of substance use disorders, potentially relating to ongoing development of neural circuits supporting instrumental learning. Striatal-cortical circuits undergo dynamic changes during instrumental learning and are implicated in contemporary addiction theory. Human studies have not yet investigated these dynamic changes in relation to adolescent substance use. Here, functional magnetic resonance imaging was used while 135 adolescents without (AUD-CUDLow ) and with significant alcohol (AUDHigh ) or cannabis use disorder symptoms (CUDHigh ) performed an instrumental learning task. We assessed how cumulative experience with instrumental cues altered cue selection preferences and functional connectivity strength between reward-sensitive striatal and cortical regions. Adolescents in AUDHigh and CUDHigh groups were slower in learning to select optimal instrumental cues relative to AUD-CUDLow adolescents. The relatively fast learning observed for AUD-CUDLow adolescents coincided with stronger functional connectivity between striatal and frontoparietal regions during early relative to later periods of task experience, whereas the slower learning for the CUDHigh group coincided with the opposite pattern. The AUDHigh group not only exhibited slower learning but also produced more instrumental choice errors relative to AUD-CUDLow adolescents. For the AUDHigh group, Bayesian analyses evidenced moderate support for no experience-related changes in striatal-frontoparietal connectivity strength during the task. Findings suggest that adolescent cannabis use is related to slowed instrumental learning and delays in peak functional connectivity strength between the striatal-frontoparietal regions that support this learning, whereas adolescent alcohol use may be more closely linked to broader impairments in instrumental learning and a general depression of the neural circuits supporting it.
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Affiliation(s)
- NA Hubbard
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE
| | - KB Miller
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE
| | - J Aloi
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN
| | - S Bajaj
- Center for Neurobehavioral Research in Children, Boys Town National Research Hospital, Boys Town, NE
| | - KT Wakabayashi
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE
| | - RJR Blair
- Child and Adolescent Mental Health Centre, Mental Health Services, Capital Region of Denmark, Copenhagen, Denmark
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Miller KB. Nineteen new species of Desmopachria Babington, 1841 (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Hyphydrini) with notes on the taxonomy of the genus. Zookeys 2022; 1136:1-56. [PMID: 36762050 PMCID: PMC9836737 DOI: 10.3897/zookeys.1136.72744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/24/2021] [Indexed: 12/23/2022] Open
Abstract
Nineteen new species of Desmopachria Babington, 1841 are described from multiple species groups. Two new species groups are erected, the Desmopachriaapicodente species group and the Desmopachriabifurcita species group. Desmopachriadivergens sp. nov. (Venezuela), Desmopachrialineata sp. nov. (Venezuela), Desmopachriasurinamensis sp. nov. (Suriname), and Desmopachriatenua sp. nov. (Guyana) are described in Desmopachria but are not assigned to a species group. Desmopachriaapicodente sp. nov. (Guyana, Venezuela), Desmopachrialateralis sp. nov. (Venezuela), and Desmopachriatumida sp. nov. (Venezuela) are described in the new Desmopachriaapicodente species group and are the only members of the group. Desmopachriabifurcita sp. nov. (Peru), and Desmopachrialata sp. nov. (Brazil) are described in the new Desmopachriabifurcita group. Other members of the Desmopachriabifurcita group are Desmopachriabifasciata Zimmermann, Desmopachriabolivari Miller, Desmopachriaovalis Sharp, and Desmopachriavarians (each previously "ungrouped"). Desmopachriapseudocavia sp. nov. (Venezuela) is described in the Desmopachriaconvexa-signata species group. Desmopachriawolfei sp. nov. (Venezuela) is described in the Desmopachrianitida species group. Desmopachriaangulata sp. nov. (Guyana, Suriname), Desmopachriaemarginata sp. nov. (Guyana, Suriname, Venezuela), Desmopachriaimparis sp. nov. (Guyana), Desmopachriaimpunctata sp. nov. (Suriname, Venezuela), and Desmopachriatruncata sp. nov. (Guyana, Suriname) are described in the Desmopachriaportmanni-aldessa species group. Desmopachriabisulcata sp. nov. (Suriname), and Desmopachriairregulara sp. nov. (Venezuela) are described in the Desmopachriaportmanni-portmanni species group. Desmopachriarobusta sp. nov. (Venezuela) is described in the Desmopachriastriola species group. A key to the species groups is included. Male genitalia are figured for all new species and dorsal habitus images are provided for most new species.
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Affiliation(s)
- Kelly B. Miller
- Department of Biology and Museum of Southwestern Biology University of New Mexico, Albuquerque, NM 87131–0001, USADepartment of Biology and Museum of Southwestern Biology University of New MexicoAlbuquerqueUnited States of America
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Badano D, Lenzi A, O’Hara JE, Miller KB, Di Giulio A, Di Giovanni F, Cerretti P. A world review of the bristle fly parasitoids of webspinners. BMC ZOOL 2022; 7:37. [PMID: 37170177 PMCID: PMC10127400 DOI: 10.1186/s40850-022-00116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/09/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Dipteran parasitoids of Embioptera (webspinners) are few and extremely rare but known from all biogeographical regions except Australasia/Oceania. All belong to the fly family Tachinidae, a hyperdiverse and widespread clade of parasitoids attacking a variety of arthropod orders.
Results
The webspinner-parasitizing Diptera are reviewed based mostly on records from the collecting and rearing by Edward S. Ross. A new genus is erected to accommodate a new Afrotropical species, Embiophoneus rossi gen. et sp. nov. The genus Perumyia Arnaud is reviewed and a new species, Perumyia arnaudi sp. nov., is described from Central America while P. embiaphaga Arnaud is redescribed and new host records are given. A new species of Phytomyptera Rondani, P. woodi sp. nov., is described from Myanmar, representing the first report of a member of this genus obtained from webspinners. The genus Rossimyiops Mesnil is reviewed, R. longicornis (Kugler) is redescribed and R. aeratus sp. nov., R. fuscus sp. nov. and R. rutilans sp. nov. are newly described from the Oriental Region, and an updated key to species is given.
Conclusions
Webspinners were probably colonized independently at least four times by tachinids shifting from other hosts, most likely Lepidoptera.
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Homziak NT, Lightfoot DC, Metzler EH, Miller KB. The Lepidoptera of Cuatrociénegas Protected Area 1. A new species in the genus Callistege Hübner, [1823] (Erebidae, Erebinae, Euclidiini) from the Chihuahuan Desert, Coahuila, Mexico. Zookeys 2021; 1044:783-796. [PMID: 34183891 PMCID: PMC8222203 DOI: 10.3897/zookeys.1044.59773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/20/2021] [Indexed: 11/12/2022] Open
Abstract
A new species of Callistege Hübner, [1823] (Lepidoptera, Erebidae, Erebinae, Euclidiini) is described from Cuatrociénegas Protected Area and Biosphere Preserve in Coahuila, Mexico. Adult male and female moths are illustrated, including genitalia. Callistegeclara Homziak & Metzler, sp. nov. is one of 27 new species of insects discovered during an inventory survey of arthropods of White Sands National Monument, USA, and Cuatrociénegas Protected Area (Mexico), funded by the U.S. National Park Service. The Cuatrociénegas Basin is known for high endemism of aquatic and wetland biota within the Chihuahuan Desert. Callistegeclara Homziak & Metzler, sp. nov. was found in a wetland environment.
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Affiliation(s)
- Nicholas T Homziak
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, MSC03 2020, Albuquerque, NM 87131-0001, USA University of New Mexico Albuquerque United States of America.,Entomology and Nematology Department, P. O. Box 110620, University of Florida, Gainesville, FL 32611-0620, USA U.S.N.M. Natural History Museum Alamogordo United States of America
| | - David C Lightfoot
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, MSC03 2020, Albuquerque, NM 87131-0001, USA University of New Mexico Albuquerque United States of America
| | - Eric H Metzler
- U.S.N.M. Natural History Museum; Museum of Southwestern Biology, P.O. Box 45, Alamogordo, NM 88311-0045, USA University of Florida Gainesville United States of America
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, MSC03 2020, Albuquerque, NM 87131-0001, USA University of New Mexico Albuquerque United States of America
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Englund WF, Njoroge L, Biström O, Miller KB, Bilton DT, Bergsten J. Taxonomic revision of the Afrotropical Agabus raffrayi species group with the description of four new species (Coleoptera, Dytiscidae). Zookeys 2020; 963:45-79. [PMID: 32922131 PMCID: PMC7458944 DOI: 10.3897/zookeys.963.53470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/12/2020] [Indexed: 11/12/2022] Open
Abstract
We revise the Afrotropical Agabus raffrayi species group, motivated by the discovery of new diversity in Kenya and South Africa. Whilst Agabus is mainly a holarctic genus, the Agabus raffrayi group is restricted to high altitude regions of eastern Africa and temperate parts of South Africa, from where we describe the southernmost Agabus in the world. The following new species are introduced: Agabus anguluverpus sp. nov. from Mount Kenya in central Kenya, Agabus austellus sp. nov. a widespread species in South Africa, Agabus riberae sp. nov. from the Kamiesberg and northeastern Cederberg ranges in the Northern and Western Cape Provinces of South Africa and Agabus agulhas sp. nov. from the Agulhas Plain, Western Cape Province, South Africa. We provide a distribution map, a determination key for males, quantitative measurements of diagnostic characters, habitus photos and detailed photos of male genitalia for all described species in the group, as well as images of diagnostic characters and habitats. The presence or absence of an elongated section between the subapical broadening and the base of the apical and subapical teeth of the male aedeagus is a useful novel character, first revealed by our study. In contrast with the most recent revision of Afrotropical Agabus, we show that Agabus ruwenzoricus Guignot, 1936 is restricted to eastern Africa; South African records of this species having been based on misidentifications, no species of the group being common to southern and eastern Africa. We speculate that the raffrayi group may display phylogenetic niche conservatism, being restricted, as an originally temperate taxon, to higher elevations in tropical eastern Africa, but occurring at lower altitudes in temperate South Africa.
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Affiliation(s)
- William F Englund
- Swedish Museum of Natural History, Department of Zoology, Box 50007, SE-10405 Stockholm, Sweden Swedish Museum of Natural History Stockholm Sweden
| | - Laban Njoroge
- National Museums of Kenya, Section of Invertebrate Zoology, Museum Hill, P.O. BOX 40658- 00100, Nairobi, Kenya National Museums of Kenya Nairobi Kenya
| | - Olof Biström
- Finnish Museum of Natural History, Zoology Unit, P.O. Box 17, FI-00014 University of Helsinki, Finland Finnish Museum of Natural History Helsinki Finland
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001, USA University of New Mexico Albuquerque United States of America
| | - David T Bilton
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK University of Plymouth Plymouth United Kingdom.,Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa University of Johannesburg Johannesburg South Africa
| | - Johannes Bergsten
- Swedish Museum of Natural History, Department of Zoology, Box 50007, SE-10405 Stockholm, Sweden Swedish Museum of Natural History Stockholm Sweden
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Miller KB. Two new species of Desmopachria Babington, 1841 in the D. convexa species group (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Hyphydrini). Zookeys 2020; 923:65-77. [PMID: 32292271 PMCID: PMC7142161 DOI: 10.3897/zookeys.923.47104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/15/2020] [Indexed: 11/23/2022] Open
Abstract
Two new species are described in the Desmopachriaconvexa species group in the Neotropical genus Desmopachria Babington: D.mancosp. nov. (Guyana), and D.mortimersp. nov. (Costa Rica). Two subgroups, the D.convexa-convexa and the D.convexa-signata groups are defined. Desmopachriaconvexa-convexa species are from North and Central America and have a subapical articulable lobe on the male lateral lobe that is large and elongate and extends well beyond the slender, oblique apex of the lateral lobe. Desmopachriaconvexa-signata species are from South America and have a subapical articulable lobe on the male lateral lobe that is small and discrete and does not extend beyond the truncate apex of the lateral lobe. The male genitalia of all recognized species in the D.convexa group are redrawn from the literature. New species are illustrated from specimens and described species have morphological features redrawn from published illustrations.
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Miller KB. Two new species of Agaporomorphus Guignot from Suriname (Coleoptera, Adephaga, Dytiscidae, Copelatinae). Zookeys 2020; 923:51-63. [PMID: 32292270 PMCID: PMC7142164 DOI: 10.3897/zookeys.923.48337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 01/04/2020] [Indexed: 11/12/2022] Open
Abstract
Two new species are described in the Neotropical genus Agaporomorphus Guignot from Suriname: A. hamatocolessp. nov. and A. tortussp. nov. The species are included in a phylogenetic parsimony analysis of 13 morphological characters and all 12 known species. Two equally parsimonious arrangements are found with the only difference a rearrangement among the A. knischi clade. Agaporomorphus tortus belongs to the A. dolichodactylus group based on presence of an elongate, club-like lobe on the dorsal, basal surface of the male median lobe and long, subsinuate male mesotarsal claws and a small lobe at the apex of male mesotarsomere V. Agaporomorphus hamatocoles does not belong to a known species group and is phylogenetically isolated lacking synapomorphies characterizing the other groups, so the species is placed in its own species group. Male genitalia are illustrated for the new species and redrawn for all the species of the A. dolichodactylus group, and male mesotarsal claws are illustrated for A. tortus and redrawn for other members of the A. dolichodactylus group. New distribution records are reported for Suriname for the species A. colberti Miller and Wheeler and A. pereirai Guignot.
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Barnes JN, Harvey RE, Eisenmann NA, Miller KB, Johnson MC, Kruse SM, Lahr BD, Joyner MJ, Miller VM. Cerebrovascular reactivity after cessation of menopausal hormone treatment. Climacteric 2019; 22:182-189. [PMID: 30661405 DOI: 10.1080/13697137.2018.1538340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Women who are currently using menopausal hormone therapy (MHT) have higher cerebrovascular reactivity when compared with postmenopausal women who are not taking MHT; however, the effect of cessation of MHT on cerebrovascular reactivity is not known. Given that MHT can have structural and activational effects on vascular function, this study was performed to characterize cerebrovascular reactivity following cessation of MHT in women at low risk for cerebrovascular disease. METHODS Cerebrovascular reactivity was measured in a subset of women from the Kronos Early Estrogen Prevention Study (KEEPS) 3 years after cessation of the study drug (oral conjugated equine estrogen, transdermal 17β-estradiol, or placebo [PLA]). RESULTS Age, body mass index, and blood pressure were comparable among groups. At rest, the middle cerebral artery velocity (MCAv), cerebrovascular conductance index, mean arterial pressure, and cerebral pulsatility index did not differ among groups. Slope-based summary measures of cerebrovascular reactivity did not differ significantly among groups. However, utilizing repeated-measures modeling, there was a significant upward shift in MCAv responses (p = 0.029) in the combined MHT group compared with the PLA group. CONCLUSION MHT has a marginal sustained effect on cerebrovascular reactivity when measured 3 years after cessation of hormone treatment.
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Affiliation(s)
- J N Barnes
- a Department of Kinesiology , University of Wisconsin-Madison , Madison , WI , USA.,b Department of Anesthesiology , Mayo Clinic , Rochester , MN , USA
| | - R E Harvey
- b Department of Anesthesiology , Mayo Clinic , Rochester , MN , USA.,c College of Medicine and Science , Mayo Clinic , Rochester , MN , USA
| | - N A Eisenmann
- a Department of Kinesiology , University of Wisconsin-Madison , Madison , WI , USA
| | - K B Miller
- a Department of Kinesiology , University of Wisconsin-Madison , Madison , WI , USA
| | - M C Johnson
- b Department of Anesthesiology , Mayo Clinic , Rochester , MN , USA
| | - S M Kruse
- b Department of Anesthesiology , Mayo Clinic , Rochester , MN , USA
| | - B D Lahr
- d Department of Health Science Research , Mayo Clinic , Rochester , MN , USA
| | - M J Joyner
- b Department of Anesthesiology , Mayo Clinic , Rochester , MN , USA
| | - V M Miller
- e Department of Physiology and Biomedical Engineering , Mayo Clinic , Rochester , MN , USA.,f Department of Surgery , Mayo Clinic , Rochester , MN , USA
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Désamoré A, Laenen B, Miller KB, Bergsten J. Early burst in body size evolution is uncoupled from species diversification in diving beetles (Dytiscidae). Mol Ecol 2018; 27:979-993. [DOI: 10.1111/mec.14492] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 12/06/2017] [Accepted: 12/11/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Aurélie Désamoré
- Zoology Department; Swedish Museum of Natural History; Stockholm Sweden
| | - Benjamin Laenen
- Department of Ecology, Environment and Plant Sciences; Stockholm University; Stockholm Sweden
| | - Kelly B. Miller
- Department of Biology and Museum of Southwestern Biology; University of New Mexico; Albuquerque NM USA
| | - Johannes Bergsten
- Zoology Department; Swedish Museum of Natural History; Stockholm Sweden
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Abstract
Spiders are well known for their silk and its varying use across taxa. Very few studies have examined the silk spigot ontogeny of the entire spinning field of a spider. Historically the spider phylogeny was based on morphological data and behavioral data associated with silk. Recent phylogenomics studies have shifted major paradigms in our understanding of silk use evolution, reordering phylogenetic relationships that were once thought to be monophyletic. Considering this, we explored spigot ontogeny in 22 species, including Dolomedes tenebrosus and Hogna carolinensis, reported here for the first time. This is the first study of its kind and the first to incorporate the Araneae Tree of Life. After rigorous testing for phylogenetic signal and model fit, we performed 60 phylogenetic generalized least squares analyses on adult female and second instar spigot morphology. Six analyses had significant correlation coefficients, suggesting that instar, strategy, and spigot variety are good predictors of spigot number in spiders, after correcting for bias of shared evolutionary history. We performed ancestral character estimation of singular, fiber producing spigots on the posterior lateral spinneret whose potential homology has long been debated. We found that the ancestral root of our phylogram of 22 species, with the addition of five additional cribellate and ecribellate lineages, was more likely to have either none or a modified spigot rather than a pseudoflagelliform gland spigot or a flagelliform spigot. This spigot ontogeny approach is novel and we can build on our efforts from this study by growing the dataset to include deeper taxon sampling and working towards the capability to incorporate full ontogeny in the analysis.
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Affiliation(s)
- Rachael E. Alfaro
- Museum of Southwestern Biology, Division of Arthropods, University of New Mexico, Albuquerque, NM, United States of America
| | - Charles E. Griswold
- Entomology, California Academy of Sciences, San Francisco, CA, United States of America
| | - Kelly B. Miller
- Museum of Southwestern Biology, Division of Arthropods, University of New Mexico, Albuquerque, NM, United States of America
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Gustafson GT, Prokin AA, Bukontaite R, Bergsten J, Miller KB. Tip-dated phylogeny of whirligig beetles reveals ancient lineage surviving on Madagascar. Sci Rep 2017; 7:8619. [PMID: 28831048 PMCID: PMC5567340 DOI: 10.1038/s41598-017-08403-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 07/11/2017] [Indexed: 11/24/2022] Open
Abstract
The temporal origin of Madagascar's extraordinary endemic diversity is debated. A preference for Cenozoic dispersal origins has replaced the classical view of Mesozoic vicariance in the wake of molecular dating. However, evidence of ancient origins is mounting from arthropod groups. Using phylogenetic 'tip-dating' analysis with fossils, we show that a whirligig beetle species, Heterogyrus milloti, inhabiting forest streams in southeastern Madagascar is the last survivor of a once dominant and widespread Mesozoic group. With a Late Triassic to Early Jurassic origin (226-187 Ma) it is the hitherto oldest dated endemic lineage of animal or plant on Madagascar. Island biotas' sensitivity to extinction is well known, but islands can also provide refuge from continental extinction. Heterogyrus milloti is an irreplaceable link to the freshwater biota of the Mesozoic and serves as a reminder of what may be lost without critical conservation efforts on Madagascar.
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Affiliation(s)
- Grey T Gustafson
- Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, 66046, USA.
| | - Alexander A Prokin
- Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzsky District, Yaroslavl Oblast, 152742, Russia
| | - Rasa Bukontaite
- Department of Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05, Stockholm, Sweden
| | - Johannes Bergsten
- Department of Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05, Stockholm, Sweden
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM, 87131, USA
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Miller KB. A review of the Neotropical genus Bidessodes Régimbart, 1895 including description of four new species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini). Zookeys 2017:9-38. [PMID: 28435383 PMCID: PMC5396571 DOI: 10.3897/zookeys.658.10928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/26/2017] [Indexed: 11/12/2022] Open
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Hastriter MW, Miller KB, Svenson GJ, Martin GJ, Whiting MF. New record of a phoretic flea associated with earwigs (Dermaptera, Arixeniidae) and a redescription of the bat flea Lagaropsylla signata (Siphonaptera, Ischnopsyllidae). Zookeys 2017:67-79. [PMID: 28331409 PMCID: PMC5345370 DOI: 10.3897/zookeys.657.11095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 02/06/2017] [Indexed: 11/26/2022] Open
Abstract
Lagaropsyllasignata (Wahlgren, 1903), previously known only from the Island of Java, Indonesia is redescribed and reported for the first time in Deer Cave, Gunung Mulu National Park, Sarawak, Malaysia (west coast of Borneo). Many were found clinging to the earwig Arixeniaesau Jordan, 1909. A similar account of a phoretic flea (Lagaropsyllaturba Smit, 1958) on the same species of cave-dwelling earwig has been reported in peninsular Malaysia in a well-documented association with the hairless naked bulldog bat, Cheiromelestorquatus Horsfield, 1824. The association of Lagaropsyllasignata with Arixeniaesau is parallel to the evolution and co-existence with bats in Deer Cave just as in the case of Lagaropsyllaturba, Arixeniaesau, and Cheiromelestorquatus. The evidence suggests that Lagaropsyllaturba and Lagaropsyllasignata are obligate phoretic parasites whose survival depends on Arixeniaesau to access a bat host. Arixeniaesau is reported for the first time in Deer Cave and the occurrence of Lagaropsyllasignata on the island of Borneo represented a new record, previously being found only on the island of Java. Images of Lagaropsyllasignata attached to Arixeniaesau are provided. Xeniariajacobsoni (Burr, 1912), often associated with Arixeniaesau in other geographical areas, was not present in the material examined from Deer Cave. The natural history of the earwig genera Arixenia Jordan, 1909 and Xeniaria Maa, 1974 are discussed and summarized relative to their associations with phoretic fleas and their bat hosts.
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Affiliation(s)
- Michael W Hastriter
- Monte L. Bean Life Science Museum, Brigham Young University, 290 MLBM, P.O. Box 20200, Provo, Utah 84602-0200, USA
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Gavin J Svenson
- The Cleveland Museum of Natural History, 1 Wade Oval Drive, Cleveland, Ohio 44106, USA
| | - Gavin J Martin
- The Cleveland Museum of Natural History, 1 Wade Oval Drive, Cleveland, Ohio 44106, USA; Department of Biology, Brigham Young University, Provo, Utah 84606, USA
| | - Michael F Whiting
- Monte L. Bean Life Science Museum, Brigham Young University, 290 MLBM, P.O. Box 20200, Provo, Utah 84602-0200, USA; Department of Biology, Brigham Young University, Provo, Utah 84606, USA
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Baca SM, Toussaint EF, Miller KB, Short AE. Molecular phylogeny of the aquatic beetle family Noteridae (Coleoptera: Adephaga) with an emphasis on data partitioning strategies. Mol Phylogenet Evol 2017; 107:282-292. [DOI: 10.1016/j.ympev.2016.10.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 10/11/2016] [Accepted: 10/22/2016] [Indexed: 01/06/2023]
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Miller KB. Novadessus viracocha, a new genus and species of Bidessini Sharp from Peru (Coleoptera, Adephaga, Dytiscidae, Hydroporinae). Zookeys 2016:125-130. [PMID: 27843392 PMCID: PMC5096400 DOI: 10.3897/zookeys.623.10018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 09/17/2016] [Indexed: 11/17/2022] Open
Abstract
Novadessusviracochagen. n. and sp. n. is described from Peru. The genus distinctly is characterized by having the following combination: (1) a transverse occipital line absent on the head; (2) the anterior clypeal margin not modified; (3) a pair of basal pronotal striae present; (4) the basal elytral stria absent; (5) the elytral sutural stria absent; (6) the elytron without longitudinal carinae; (7) the epipleuron without a transverse carina at the humeral angle; (8) the lateral lobes of the male aedeagus two-segmented; (9) the overall habitus elongate and oval, with lateral pronotal and elytral margins discontinuous; (10) without distinct denticles along the posterior margins of the abdominal sternites; (11) the male genitalia (both median lobe and lateral lobes) bilaterally symmetrical; and (12) the metatrochanter small relative to the metafemur, approximately 0.6 × the length of the metafemur. The genus is diagnostically similar to Fontidessus Miller and Spangler and Neobidessodes Hendrich and Balke, but is superficially more similar to Liodessus Guignot. The habitus and male genitalia are illustrated, and a distribution map is provided.
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Affiliation(s)
- Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001 USA
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Kanda K, Gomez RA, Van Driesche R, Miller KB, Maddison DR. Phylogenetic placement of the Pacific Northwest subterranean endemic diving beetle Stygoporus oregonensis Larson & LaBonte (Dytiscidae, Hydroporinae). Zookeys 2016; 632:75-91. [PMID: 27920606 PMCID: PMC5126547 DOI: 10.3897/zookeys.632.9866] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 10/12/2016] [Indexed: 11/12/2022] Open
Abstract
Stygoporus oregonensis Larson & LaBonte is a little-known subterranean diving beetle, which, until recently, had not been collected since the type series was taken from a shallow well in western Oregon, USA, in 1984. Here we report the discovery of additional specimens collected from a nearby well in the Willamette Valley. Sequence data from four mitochondrial genes, wingless, and histone III place Stygoporus Larson & LaBonte in the predominantly Mediterranean subtribe Siettitiina of the Hydroporini. Morphological support for these results is discussed, and details of the collecting circumstances of the new specimens are presented. We argue that the biogeographic patterns of Nearctic Siettitiina highlight the likelihood of additional undiscovered subterranean dytiscids in North America.
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Affiliation(s)
- Kojun Kanda
- Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America
| | - R. Antonio Gomez
- Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America
| | - Richard Van Driesche
- Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America
| | - Kelly B. Miller
- Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - David R. Maddison
- Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America
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Miller KB. New species of Bidessonotus Régimbart, 1895 with a review of the South American species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini). Zookeys 2016:95-127. [PMID: 27843382 PMCID: PMC5096411 DOI: 10.3897/zookeys.622.9155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/02/2016] [Indexed: 11/24/2022] Open
Abstract
The South American species of the New World genus Bidessonotus Régimbart, 1895 are reviewed with descriptions of seven new species. This brings the total number of valid Bidessonotus species to 37, making it the largest Bidessini genus in the New World. The new species are Bidessonotusannaesp. n. (Venezuela), Bidessonotusjosiahisp. n. (Venezuela), Bidessonotuspalecephalussp. n. (Venezuela), Bidessonotusreductussp. n. (Venezuela), Bidessonotusseptimussp. n. (Venezuela), Bidessonotusspinosussp. n. (Venezuela), and Bidessonotusvaldezisp. n. (Guyana, Suriname). New distribution records are provided for many other South American Bidessonotus species. The main diagnostic features of Bidessonotus species are in the male genitalia, and these are illustrated for all South American species. Diagnostic features, distributions (including distribution maps), and additional comments are provided for all South American species.
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Affiliation(s)
- Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001 USA
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Miller KB. Revision of the Neotropical diving beetle genus Hydrodessus J. Balfour-Browne, 1953 (Coleoptera, Dytiscidae, Hydroporinae, Bidessini). Zookeys 2016:45-124. [PMID: 27110208 PMCID: PMC4829950 DOI: 10.3897/zookeys.580.8153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/04/2016] [Indexed: 11/15/2022] Open
Abstract
The Neotropical diving beetle genus Hydrodessus J. Balfour-Browne, 1953 (Coleoptera: Dytiscidae: Hydroporinae: Bidessini) is revised. Thirty species are recognized. The following new species are described: Hydrodessusbimaculatussp. n. (Venezuela), Hydrodessusbrevissp. n. (Venezuela), Hydrodessusconcoloranssp. n. (Venezuela), Hydrodessuscontinuussp. n. (Venezuela), Hydrodessusdisjunctussp. n. (Suriname), Hydrodessusfasciatussp. n. (Brazil), Hydrodessusimparilissp. n. (Ecuador), Hydrodessuskeithisp. n. (Brazil, Colombia, Ecuador), Hydrodessuskurtisp. n. (Suriname), Hydrodessuskyleisp. n. (Suriname, Venezuela), Hydrodessuslaetussp. n. (Venezuela), Hydrodessuslatotibialissp. n. (Peru), Hydrodessusmaculatussp. n. (Guyana, Venezuela), Hydrodessusmorsussp. n. (Venezuela), Hydrodessuspalussp. n. (Venezuela), and Hydrodessustenuatussp. n. (Suriname). The following new synonyms are established: Hydrodessusfragrans Spangler, 1985 = Hydrodessusbiguttatus (Guignot, 1957) syn. n. and Hydrodessusrobinae Spangler, 1985 = Hydrodessusoctospilus (Guignot, 1957), syn. n. One species is transferred from Hydrodessus to Amarodytes Régimbart, Amarodytessoekhnandanae (Makhan, 1994), comb. n. Habitus photographs (dorsal and lateral) and photos of the ventral surfaces are provided for most species. Line drawings of male and female genitalia and other diagnostic features are also provided along with distribution maps.
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Affiliation(s)
- Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, MSC03 2020, Albuquerque, NM 87131-0001, USA
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Abstract
Heteranassa Smith (Erebidae, Omopterini), native to the southwestern United States and Mexico, includes two recognized species, namely Heteranassa mima (Harvey) and Heteranassa fraterna Smith. These are separated mainly by subtle differences in wing color and pattern, leading to speculation about the validity of the described species. This study examines variation in external and internal morphology across the geographic range of the genus, aiming to clarify species limits, describe morphology, and provide a comprehensive assessment of variation within the genus. Results indicate that Heteranassa fraterna syn. n., is a junior synonym of Heteranassa mima.
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Affiliation(s)
- Nicholas Homziak
- Kelly Miller Lab, Department of Biology, University of New Mexico, 167 Castetter Hall, MSC03 2020, Albuquerque, NM 87131-0001 USA ; Current address: Department of Entomology, University of Florida, P.O. Box 110620, Gainesville, FL 32611-0620 USA
| | - Heidi Hopkins
- Kelly Miller Lab, Department of Biology, University of New Mexico, 167 Castetter Hall, MSC03 2020, Albuquerque, NM 87131-0001 USA
| | - Kelly B Miller
- Kelly Miller Lab, Department of Biology, University of New Mexico, 167 Castetter Hall, MSC03 2020, Albuquerque, NM 87131-0001 USA
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Leister M, Miller KB. Description of a new tracheline spider, Trachelas mombachensis sp. n., in the T. bispinosus species group from the Mombacho Volcano in Nicaragua (Araneae: Trachelidae). Zootaxa 2015; 3936:141-6. [PMID: 25947427 DOI: 10.11646/zootaxa.3936.1.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Indexed: 11/04/2022]
Affiliation(s)
- Matthew Leister
- Museum of Southwestern Biology, Division of Arthropods, MSC03 2020, University of New Mexico, Albuquerque, NM, USA 87131-0001.;
| | - Kelly B Miller
- Museum of Southwestern Biology, Division of Arthropods, MSC03 2020, University of New Mexico, Albuquerque, NM, USA 87131-0001.;
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Gustafson GT, Miller KB. The New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini). Zookeys 2015:1-135. [PMID: 25685002 PMCID: PMC4311692 DOI: 10.3897/zookeys.476.8630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/12/2014] [Indexed: 12/03/2022] Open
Abstract
All New World members of the whirligig beetle genus Dineutus Macleay, 1825 are treated. The New World Dineutus are found to be composed of 18 species and 6 subspecies: one species, Dineutusmexicanus Ochs, 1925, stat. n. is elevated from subspecies to species rank, and the subspecies Dineutuscarolinusmutchleri Ochs, 1925, syn. n. is synonymized here with the typical form. Lectotypes are designated for Dineutusdiscolor Aubé, 1838, Dineutesmetallicus Aubé, 1838, Dineutussolitarius Aubé, 1838, Dineutesanalis Régimbart, 1883, and Gyrinuslongimanus Olivier, 1795. Each taxonomic unit is provided with a taxonomic history, type locality, diagnosis, distribution, habitat information, and a discussion section. The aedeagus and male mesotarsal claws are illustrated, and dorsal and ventral habitus images of both sexes, for each species and subspecies are provided. General distribution maps are provided for all taxonimc units. A key to the genera of New World Gyrinidae, as well as all the New World Dineutus species is provided. General Dineutus anatomy as well as a clarification of homology and anatomical terms is included.
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Affiliation(s)
- Grey T Gustafson
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
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Grzymala TL, Miller KB. Taxonomic Revision and Phylogenetic Analysis of the Genus Elytroleptus Dugés (Coleoptera: Cerambycidae: Cerambycinae: Trachyderini). Zootaxa 2014; 3659:1-62. [PMID: 25333085 DOI: 10.11646/zootaxa.3659.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The longhorned beetle genus Elytroleptus Dugés (Cerambycidae: Cerambycinae: Trachyderini) is revised to include fifteen species. One new species is described: E. quadricostatus sp. nov. Grzymala & Miller. Three new synonymies are proposed: E. dichromaticus Linsley, 1961 syn. n. = E. divisus (LeConte, 1884); E. luteicollis Skiles & Chemsak, 1982 syn. n. = E. ignitus (LeConte, 1884); E. peninsularis Hovore, 1988 syn. n. = E. immaculipennis Knull, 1935. A lectotype is designated for E. scabricollis Bates, 1892. The genus is generally distributed throughout the southwestern United States, Mexico, and Central America (Guatemala, Honduras, Nicaragua, and Costa Rica) with one species, E. floridanus (LeConte), extending the range to the northeastern and southeastern United States. Elytroleptus is of interest to both naturalists and taxonomists as several species are lycid (Coleoptera: Lycidae) mimics with three recorded as predaceous on their own models (E. apicalis (LeConte), E. ignitus (LeConte), E. limpianus Skiles & Chemsak). Descriptions of all species are provided with an emphasis on clarifying intraspecific polychromatic variation. A key to the adult species, distribution maps, habitus images, and illustrations of mouthparts and genitalia are presented. A phylogenetic analysis of Elytroleptus is performed using twenty-one adult morphological characters. Six most parsimonious trees (L = 59; CI = 50; RI = 75) are recovered. Results suggest that Elytroleptus is monophyletic and is supported by four unambiguous synapomorphies.
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Affiliation(s)
- Traci L Grzymala
- Department of Environmental Science, Policy, and Management, Division of Organisms & Environment, University of California, Berkeley, CA.
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Miller KB, Montano ET. Review of the genus Fontidessus Miller & Spangler, 2008 (Coleoptera, Dytiscidae, Hydroporinae, Bidessini) with description of four new species. Zookeys 2014; 426:65-85. [PMID: 25147458 PMCID: PMC4137291 DOI: 10.3897/zookeys.426.7217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 07/01/2014] [Indexed: 11/30/2022] Open
Abstract
The genus Fontidessus Miller & Spangler, 2008 (Coleoptera: Dytiscidae: Hydroporinae: Bidessini) is reviewed. The genus now includes seven species with three previously described, and four new species described here: F. microphthalmus Miller & Montano, sp. n.; F. bettae Miller & Montano, sp. n.; F. christineae Miller & Montano, sp. n., and F. aquarupe Miller & Montano, sp. n. Each species is diagnosed and described, including the previously known species, based on new specimens and new information. Habitus, male genitalia and other diagnostic features are illustrated for each species. A key to the seven species is provided. Fontidessus species are unique to hygropetric habitats in the Guiana Shield craton of northern South American.
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Affiliation(s)
- Kelly B. Miller
- Department of Biology, University of New Mexico, Albuquerque, NM 87131–0001 USA
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Miller KB. Agaporomorphus sharynae, a new species of diving beetle (Coleoptera: Dytiscidae: Copelatinae) from Venezuela. Zootaxa 2014; 3790:177-84. [PMID: 24869866 DOI: 10.11646/zootaxa.3790.1.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 11/04/2022]
Abstract
Agaporomorphus sharynae sp. n. is described from Amazonas, Venezuela. Agaporomorphus Zimmermann, 1921 now includes nine known species. The new species is part of the A. knishi species group since it has similarly convoluted male genitalia with rows of setae on the dorsal surface. Males can be separated from those of other members of the genus by the structure of the abdominal ventrites, shape of the antennae, and shape of the male median lobe. The cladistic analysis of K.B. Miller & Wheeler (2008) is modified to include the new species. The habitus and male and female genitalia are illustrated, and male genitalia of other species of the A. knishi species group are illustrated for comparison.
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Affiliation(s)
- Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131 USA.;
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Bukontaite R, Miller KB, Bergsten J. The utility of CAD in recovering Gondwanan vicariance events and the evolutionary history of Aciliini (Coleoptera: Dytiscidae). BMC Evol Biol 2014; 14:5. [PMID: 24423391 PMCID: PMC3901756 DOI: 10.1186/1471-2148-14-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 12/30/2013] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Aciliini presently includes 69 species of medium-sized water beetles distributed on all continents except Antarctica. The pattern of distribution with several genera confined to different continents of the Southern Hemisphere raises the yet untested hypothesis of a Gondwana vicariance origin. The monophyly of Aciliini has been questioned with regard to Eretini, and there are competing hypotheses about the intergeneric relationship in the tribe. This study is the first comprehensive phylogenetic analysis focused on the tribe Aciliini and it is based on eight gene fragments. The aims of the present study are: 1) to test the monophyly of Aciliini and clarify the position of the tribe Eretini and to resolve the relationship among genera within Aciliini, 2) to calibrate the divergence times within Aciliini and test different biogeographical scenarios, and 3) to evaluate the utility of the gene CAD for phylogenetic analysis in Dytiscidae. RESULTS Our analyses confirm monophyly of Aciliini with Eretini as its sister group. Each of six genera which have multiple species are also supported as monophyletic. The origin of the tribe is firmly based in the Southern Hemisphere with the arrangement of Neotropical and Afrotropical taxa as the most basal clades suggesting a Gondwana vicariance origin. However, the uncertainty as to whether a fossil can be used as a stem-or crowngroup calibration point for Acilius influenced the result: as crowngroup calibration, the 95% HPD interval for the basal nodes included the geological age estimate for the Gondwana break-up, but as a stem group calibration the basal nodes were too young. Our study suggests CAD to be the most informative marker between 15 and 50 Ma. Notably, the 2000 bp CAD fragment analyzed alone fully resolved the tree with high support. CONCLUSIONS 1) Molecular data confirmed Aciliini as a monophyletic group. 2) Bayesian optimizations of the biogeographical history are consistent with an influence of Gondwana break-up history, but were dependent on the calibration method. 3) The evaluation using a method of phylogenetic signal per base pair indicated Wnt and CAD as the most informative of our sampled genes.
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Affiliation(s)
- Rasa Bukontaite
- Department of Entomology, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden
- Department of Zoology, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Johannes Bergsten
- Department of Entomology, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden
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Abstract
All available genus- and family- group nomina for the Gyrinidae (Coleoptera: Adephaga) are listed along with original citation, original and current status, type nominal taxon with method of designation, and known synonymies and incorrect subsequent spellings. The nomina included follow the most current classification. Discussion is provided clarifying numerous nomenclatural problems with original spellings, correct authorship and type designation. Dineutini Ochs, 1926 syn. nov. is found to be a junior homonym of Dineutini Desmarest, 1851, and Enhydrini Régimbart, 1882 syn. nov. and its justified emendation Enhydrusini (Anonymous 2012) are here synonymized with Dineutini Desmarest, 1851.
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Affiliation(s)
- Grey T Gustafson
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA.;
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA.;
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Abstract
Notomicrus josiahi sp. n. is described from a stream in southern Venezuela. The species differs from others in the genus in 1) large size for the genus (1.48-1.53mm), 2) smooth, shiny dorsal surface with indistinct punctation and mircroretic-ulation, 3) distinct coloration with head and pronotum yellow and elytron bicolored with basal portion black and apical portion brown, and 4) distinctive male genitalia. A checklist of the valid, known species of Notomicrus is given.
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Affiliation(s)
- Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131-0001 USA;
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Jean A, Telles ND, Gibson JR, Foley D, Miller KB. Description of a New Genus and Species of Stygobiontic Diving Beetle, Psychopomporus felipi Jean, Telles, and Miller (Coleoptera: Dytiscidae: Hydroporinae), from the Edwards-Trinity Aquifer System of Texas, USA. Coleopt Bull 2012; 66:105-110. [PMID: 25177045 PMCID: PMC4148458 DOI: 10.1649/072.066.0202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Psychopomporus felipi Jean, Telles, and Miller, new genus and new species (Coleoptera: Dytiscidae), is described from San Felipe Springs, Val Verde County, Texas, USA, which emerges from the Edwards-Trinity aquifer system. Psychopomporus felipi shows several features typical of subterranean diving beetles, such as depigmentation, compound eyes reduced, elytra fused, and flight wings absent. Psychopomporus differs from other hydroporine genera in having a broad elytral epipleuron, the prosternal process small and with a medial, strongly produced prominence, and the meso- and (to a lesser extent) protibia apically broadly expanded and medially distinctly curved. This is the fourth stygobiontic diving beetle described from the Edwards-Trinity aquifer system in south-central Texas, USA.
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Affiliation(s)
- April Jean
- Department of Earth and Planetary Sciences, University of New Mexico Albuquerque, NM 87131-0001, U.S.A.
| | - Nicole D Telles
- Department of Biology and Museum of Southwestern Biology, University of New Mexico Albuquerque, NM 87131-0001, U.S.A.
| | - J Randy Gibson
- National Fish Hatchery and Technology Center, U. S. Fish and Wildlife Service 500 East McCarty Lane, San Marcos, TX 78666, U.S.A.
| | - Dan Foley
- Department of Biology, Sul Ross State University, Rio Grande College 205 Wildcat Drive, Del Rio, TX 78840, U.S.A.
| | - Kelly B Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico Albuquerque, NM 87131-0001, U.S.A.
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Abstract
Sperm display remarkable morphological diversity among even closely related species, a pattern that is widely attributed to postcopulatory sexual selection. Surprisingly few studies have used phylogenetic analyses to discern the details of evolutionary diversification in ornaments and armaments subject to sexual selection, and the origins of novel sperm traits and their subsequent modification are particularly poorly understood. Here we investigate sperm evolution in diving beetles (Dytiscidae), revealing dramatic diversification in flagellum length, head shape, presence of sperm heteromorphism, and the presence/type of sperm conjugation, an unusual trait where two or more sperm unite for motility or transport. Sperm conjugation was found to be the ancestral condition in diving beetles, with subsequent diversification into three forms, each exhibiting varying degrees of evolutionary loss, convergence, and recurrence. Sperm head shape, but not length or heteromorphism, was found to evolve in a significantly correlated manner with conjugation, consistent with the different mechanisms of head alignment and binding required for the different forms of conjugation. Our study reveals that sperm morphological evolution is channeled along particular evolutionary pathways (i.e., conjugate form), yet subject to considerable diversification within those pathways through modification in sperm length, head shape, and heteromorphism.
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Affiliation(s)
- Dawn M. Higginson
- Department of Biology, Syracuse University, Syracuse, New York 13244
| | - Kelly B. Miller
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, New Mexico 87131
| | - Kari A. Segraves
- Department of Biology, Syracuse University, Syracuse, New York 13244
| | - Scott Pitnick
- Department of Biology, Syracuse University, Syracuse, New York 13244
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Gómez RA, Lightfoot DC, Miller KB. A phylogenetic review of the North American band-winged grasshopper genus, Encoptolophus Scudder with description of Nebulatettix gen.n. (Orthoptera: Acrididae: Oedipodinae). Insect Syst Evol 2012; 43:117-145. [PMID: 24605044 PMCID: PMC3941475 DOI: 10.1163/187631212x649541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A taxonomic review of the North American band-winged grasshopper genus Encoptolophus Scudder (Orthoptera: Acrididae: Oedipodinae) was conducted. This genus is hypothesized to be non-monophyletic following a cladistic analysis of the genera in the Chortophaga genus group. We examined all species currently classified in this genus group for morphological characters and one behavioral character. The phenotypic character data were combined with three mitochondrial genes: cytochrome c oxidase subunit II, 16S rRNA and 12S rRNA. A parsimony analysis was performed on the combined data resulting in two equally parsimonious trees. Encoptolophus, as historically defined, is resolved in three separate clades. The results support erection of a new genus, Nebulatettix Gómez, Lightfoot & Miller gen.n. to comprise one of the groups historically classified in Encoptolophus. In addition, we transfer the species Encoptolophus californicus Bruner to Chimarocephala Scudder, comb.n., a combination used historically. The evolution of certain characters in the Chortophaga group is discussed, and a key to the genera is provided.
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Miller KB. A review of: Foundations of Systematics and Biogeography by Williams and Ebach. Cladistics 2011. [DOI: 10.1111/j.1096-0031.2010.00335.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Stahl L, Miller KB, Apgar J, Sweigart DS, Stuart DA, McHale N, Ou B, Kondo M, Hurst WJ. Preservation of cocoa antioxidant activity, total polyphenols, flavan-3-ols, and procyanidin content in foods prepared with cocoa powder. J Food Sci 2010; 74:C456-61. [PMID: 19723182 DOI: 10.1111/j.1750-3841.2009.01226.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Little is known about the effects of common cooking processes on cocoa flavanols. Antioxidant activity, total polyphenols (TP), flavanol monomers, and procyanidin oligomers were determined in chocolate frosting, a hot cocoa drink, chocolate cookies, and chocolate cake made with natural cocoa powder. Recoveries of antioxidant activity, TP, flavanol monomers, and procyanidins ranged from 86% to over 100% in the chocolate frosting, hot cocoa drink, and chocolate cookies. Losses were greatest in the chocolate cake with recoveries ranging from 5% for epicatechin to 54% for antioxidant activity. The causes of losses in baked chocolate cakes were investigated by exchanging baking soda with baking powder or combinations of the 2 leavening agents. Use of baking soda as a leavening agent was associated with increased pH and darkening color of cakes. Losses of antioxidant activity, TP, flavanol monomers, and procyanidins were associated with an increased extractable pH of the baked cakes. Chocolate cakes made with baking powder for leavening resulted in an average extractable pH of 6.2 with essentially complete retention of antioxidant activity and flavanol content, but with reduced cake heights and lighter cake color. Commercially available chocolate cake mixes had final pHs above 8.3 and contained no detectable monomeric flavanols after baking. These results suggest that baking soda causes an increase in pH and subsequent destruction of flavanol compounds and antioxidant activity. Use of an appropriate leavening agent to moderate the final cake pH to approximately 7.25 or less results in both good leavening and preservation of cocoa flavanols and procyanidins.
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Affiliation(s)
- L Stahl
- The Hershey Co., Hershey, PA 17033, USA
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Miller KB, Bergsten J, Whiting MF. Phylogeny and classification of the tribe Hydaticini (Coleoptera: Dytiscidae): partition choice for Bayesian analysis with multiple nuclear and mitochondrial protein-coding genes. ZOOL SCR 2009. [DOI: 10.1111/j.1463-6409.2009.00393.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cameron SL, Sullivan J, Song H, Miller KB, Whiting MF. A mitochondrial genome phylogeny of the Neuropterida (lace-wings, alderflies and snakeflies) and their relationship to the other holometabolous insect orders. ZOOL SCR 2009. [DOI: 10.1111/j.1463-6409.2009.00392.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Miller KB, Edgerly JS. Systematics and natural history of the Australian genus Metoligotoma Davis (Embioptera:Australembiidae). INVERTEBR SYST 2008. [DOI: 10.1071/is07018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Members of the order Embioptera (webspinners) are among the least known groups of insects, but have a relatively well-developed, phylogenetically unique, and biologically interesting fauna in portions of Australia. The genus Metoligotoma Davis (Australembiidae) is a well-defined group occurring in south-eastern Australia where species are especially distinctive in that they occupy extremely small endemic areas. Additionally, both males and females are wingless, thereby severely limiting opportunities for dispersal. Hypotheses of relationships among these species are not available in a modern phylogenetic context and little is known of their natural history and biogeography. A new species of Embioptera, Metoligotoma rooksi Miller & Edgerly, sp. nov. is described from a male specimen from near Bombala, New South Wales, Australia. A phylogenetic analysis of the genus (including 10 of the 16 known species of Metoligotoma) was conducted using morphological and molecular data from 16S, 28S, COI+COII and H3. The new species is most closely related to M. begae, from which it is geographically separated by the high coastal mountains. The natural history of the genus is reviewed, including descriptions of the silk galleries, habitats and eggs. The biogeography of the genus is examined in light of the phylogeny. No obvious vicariance model supports the current distribution and small endemic areas exhibited by members of the genus. Instead, it is speculated that periodic, rare dispersal events from north to south, and inland over the coastal mountains, resulted in the current distribution of the species. This is the first modern phylogenetic analysis of the Australembiidae, and the first extensive analysis of any group of Embioptera to include molecular data.
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Abstract
BACKGROUND Darwin illustrated his sexual selection theory with male and female morphology of diving beetles, but maintained a cooperative view of their interaction. Present theory suggests that instead sexual conflict should be a widespread evolutionary force driving both intersexual coevolutionary arms races and speciation. METHODOLOGY/PRINCIPAL FINDINGS We combined Bayesian phylogenetics, complete taxon sampling and a multi-gene approach to test the arms race scenario on a robust diving beetle phylogeny. As predicted, suction cups in males and modified dorsal surfaces in females showed a pronounced coevolutionary pattern. The female dorsal modifications impair the attachment ability of male suction cups, but each antagonistic novelty in females corresponds to counter-differentiation of suction cups in males. CONCLUSIONS A recently diverged sibling species pair in Japan is possibly one consequence of this arms race and we suggest that future studies on hypoxia might reveal the key to the extraordinary selection for female counter-adaptations in diving beetles.
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Affiliation(s)
- Johannes Bergsten
- Entomology Department, Natural History Museum, London, United Kingdom; Division of Biology, Imperial College London, Silwood Park Campus, Ascot, United Kingdom.
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Poutsiaka DD, Price LL, Ucuzian A, Chan GW, Miller KB, Snydman DR. Blood stream infection after hematopoietic stem cell transplantation is associated with increased mortality. Bone Marrow Transplant 2007; 40:63-70. [PMID: 17468772 DOI: 10.1038/sj.bmt.1705690] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Blood stream infection (BSI) is a serious complication of hematopoietic stem cell transplantation (HSCT). The aim of this retrospective cohort analysis was to describe BSI after HSCT, and to assess the predictors and outcomes of BSI after HSCT using multivariable modeling. Of the 243 subjects transplanted, 56% received allogeneic HSCT and 106 (43.6%) developed BSI. Of the 185 isolates, 68% were Gram-positive cocci, 21% were Gram-negative bacilli (GNR) and 11% were fungi. Type of allogeneic HSCT was an independent risk factor for BSI (hazard ratio (HR) 3.26, 95% confidence interval (CI) 1.50, 7.07, P = 0.01), as was the degree of HLA matching (HR 1.84, 95% CI 1.00, 3.37, P = 0.05). BSI was a significant independent predictor of mortality after HSCT (HR 1.79, 95% CI 1.18, 2.73, P = 0.007), after adjusting for acute graft-versus-host disease (GVHD) and allogeneic HSCT (both predicting death < or = 3 months after HSCT). In contrast to the effects of acute GVHD and allogeneic HSCT, the effect of BSI was evident throughout the post-HSCT period. GNR BSI and vancomycin-resistant enterococcal BSI also were significantly associated with death. We concluded that BSI is a common complication of HSCT associated with increased mortality throughout the post-HSCT period.
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Affiliation(s)
- D D Poutsiaka
- Division of Geographic Medicine and Infectious Diseases, Department of Medicine, Tufts-New England Medical Center, Boston, MA 02111, USA.
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Miller KB, Bergsten J, Whiting MF. Phylogeny and classification of diving beetles in the tribe Cybistrini (Coleoptera, Dytiscidae, Dytiscinae). ZOOL SCR 2007. [DOI: 10.1111/j.1463-6409.2006.00254.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Two new species in the genus Agaporomorphus Zimmermann are described from Madre de Dios, Peru, A. tambopatensis Miller, n. sp. and A. silvaticus Miller, n. sp. A key to males of all the species in the genus is provided. A cladistic analysis is presented including the new species. Agaporomorphus is arranged into three species groups; the A. dolichodactylus-group (A. dolichodactylus Miller, A. mecolobus Miller and A. grandisinuatus Miller); the A. knischi-group (A. knischi Zimmermann, A. tambopatensis and A. silvaticus); and the A. pereirai-group with a single species, A. pereirai Guignot. Taxonomically and phylogenetically important characters are discussed and illustrated.
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Foss FM, DiVenuti GM, Chin K, Sprague K, Grodman H, Klein A, Chan G, Stiffler K, Miller KB. Prospective study of extracorporeal photopheresis in steroid-refractory or steroid-resistant extensive chronic graft-versus-host disease: analysis of response and survival incorporating prognostic factors. Bone Marrow Transplant 2005; 35:1187-93. [PMID: 15852025 DOI: 10.1038/sj.bmt.1704984] [Citation(s) in RCA: 138] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We enrolled 25 patients with extensive, steroid-refractory chronic graft-versus-host disease (cGVHD) in a prospective trial evaluating the efficacy of extracorporeal photophoresis (ECP) in both skin and visceral cGVHD. The median time from transplant to initiation of ECP was 790 days. ECP was administered for 2 consecutive days every 2 weeks in 17 patients and once a week in eight patients until best response or stable disease. The median duration of therapy was 9 months (range 3-24 months). In all, 20 patients had improvement in cutaneous GVHD and six had healing of oral ulcerations. Steroid sparing or discontinuation of immunosuppressive medications was possible in 80% of patients. Response rates were similar between patients receiving treatment weekly vs every 2 weeks and in patients commencing ECP less than vs greater than 18 months from transplant (70 vs 66%). When patients were stratified based on the Akpek prognostic score, there was no difference in overall response between the favorable (Akpek score<2.5) and unfavorable risk groups, but patients with progressive onset cGVHD tended to have a higher response than those with de novo onset. In summary, we report improvement in skin and/or visceral cGVHD in 71% overall and 61% of high-risk patients.
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Affiliation(s)
- F M Foss
- Bone Marrow Transplantation Program, Hematology Oncology Division, Tufts New England Medical Center, Boston 02111, USA.
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Cameron SL, Miller KB, D'Haese CA, Whiting MF, Barker SC. Mitochondrial genome data alone are not enough to unambiguously resolve the relationships of Entognatha, Insecta and Crustacea sensu lato (Arthropoda). Cladistics 2004; 20:534-557. [DOI: 10.1111/j.1096-0031.2004.00040.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Miller KB, Roberts TF, Chan G, Schenkein DP, Lawrence D, Sprague K, Gorgun G, Relias V, Grodman H, Mahajan A, Foss FM. A novel reduced intensity regimen for allogeneic hematopoietic stem cell transplantation associated with a reduced incidence of graft-versus-host disease. Bone Marrow Transplant 2004; 33:881-9. [PMID: 14990986 DOI: 10.1038/sj.bmt.1704454] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SUMMARY In all, 55 patients at high risk or ineligible for a conventional allogeneic hematopoietic stem cell transplant (HSCT) received a regimen consisting of extracorporeal photopheresis, pentostatin, and reduced dose total body irradiation. The median age was 49 years (18-70 years); 44 received a sibling and 11 an unrelated HSCT; 44% were over the age of 50 years and 31% had undergone a prior HSCT. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporine and methotrexate. Full donor chimerism was documented in 98% by day +100. The 1000-day nonrelapse mortality was 11%. The median follow-up is 502 days (154-1104 days). The 1- and 2-year overall survival (OS) and event-free survival (EFS) are 67, 58 and 55%, and 47%, respectively. Patients who had not received a prior HSCT or had less than three prior chemotherapy regimens had a 71% OS and 67% EFS at 1 year. Greater than grade II aGVHD developed in 9% and chronic GVHD (cGVHD) in 43%, and extensive in 12% and limited in 31%. Of the patients, 86% who engrafted had a disease response, 72% had complete and 14% partial responses. This novel reduced intensity preparative regimen was well tolerated and associated with a low incidence of transplant-related mortality and serious acute and cGVHD.
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Affiliation(s)
- K B Miller
- Department of Medicine, Bone Marrow Transplantation and Hematological Malignancy Unit, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
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Papas AS, Clark RE, Martuscelli G, O'Loughlin KT, Johansen E, Miller KB. A prospective, randomized trial for the prevention of mucositis in patients undergoing hematopoietic stem cell transplantation. Bone Marrow Transplant 2003; 31:705-12. [PMID: 12692611 DOI: 10.1038/sj.bmt.1703870] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Oral mucositis is a complication common to many cancer therapies and produces considerable pain and morbidity. The present study reports a double-blind, prospective, randomized clinical trial testing the efficacy of a calcium phosphate mouth rinse (Caphosol) with fluoride treatments vs a standard regimen of fluoride rinsing and placebo tray treatments in 95 patients undergoing hematopoietic stem cell transplantation (HSCT). The days and severity of mucositis were prospectively evaluated. There were statistically significant decreases in days of mucositis (3.72 vs 7.22 P=0.001), duration of pain (2.86 vs 7.67, P=0.0001), dose of morphine (34.54 mg vs 122.78 mg), days of morphine (1.26 vs 4.02, P=0.0001) and days to the onset of engraftment ANC (absolute neurotrophil count)>200 mm(3) (11.12 vs 12.56) in the Caphosol and fluoride treatment group vs fluoride-rinse group, respectively. Caphosol, a neutral, supersaturated, Ca(2+)/PO(4)(3-) mouth rinse, used in combination with topical fluoride treatments, is superior to fluoride rinse alone in reducing the frequency, intensity and duration of oral mucositis in patients undergoing HSCT.
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Affiliation(s)
- A S Papas
- Department of Oral Medicine, Tufts-New England Medical Center, Tufts University School of Dental Medicine, Boston, MA 02111, USA
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Comenzo RL, Malachowski ME, Miller KB, Erban JJ, Schenkein DP, Desforges JF, Berkman EM. Engraftment with peripheral blood stem cells collected by large-volume leukapheresis for patients with lymphoma. Transfusion 2003; 32:729-31. [PMID: 1357788 DOI: 10.1046/j.1537-2995.1992.32893032099.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Seven patients with refractory lymphomas underwent marrow reconstitution with peripheral blood stem cells (PBSCs) harvested by large-volume leukapheresis (LVL). PBSCs were collected from all patients more than 1 month after the last cycle of chemotherapy, and no patient received growth factors. The median number of LVL procedures performed per patient was 4.5, with a mean volume of 24.5 L of blood processed per procedure to obtain 7 x 10(8) mononuclear cells per kg. Autologous PBSCs and platelets were frozen at a controlled rate in plasma and 10-percent dimethyl sulfoxide and stored in the vapor phase of liquid nitrogen. This group of patients was compared to a control group (n = 18) who received medullary marrow (MM) transplants for the same diagnoses under the same protocols during the same period. Posttransplant days to white cell engraftment (PBSC = 17, MM = 15.5) were no different. Days to platelet independence were significantly longer in the LVL PBSC group (PBSC = 33, MM = 16; p < 0.05). This pattern of engraftment is typical of patients treated in this manner. Although Day 0 platelet counts (PBSC = 75.5 x 10(9)/L, MM = 85 x 10(9)/L) and total single-donor unit platelet use (PBSC = 8, MM = 9) were no different, Day 1 platelet counts (PBSC = 128 x 10(9)/L, MM = 61.5 x 10(9)/L; p < 0.05) and Day 14 platelet use (PBSC = 5, MM = 8; p < 0.05) were significantly different, because of the transfusion of cryopreserved autologous platelets with PBSCs on Day 0.
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Affiliation(s)
- R L Comenzo
- Bone Marrow Transplant Unit, Tufts University School of Medicine, Boston, Massachusetts
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Abstract
Despite significant advances in stem cell manipulation and post-transplant immunosuppression, chronic graft-versus-host disease (cGVHD) remains a cause of major long-term morbidity in survivors of allogeneic stem cell transplantation. Extracorporeal photopheresis (ECP) is a novel therapeutic intervention which has demonstrated efficacy in patients with refractory acute and chronic GVHD. Clinical responses have been reported in skin and visceral GVHD. While the long-term immunomodulatory effects of ECP in cGVHD are unknown, recent studies of patients undergoing a 6- to 12-month course of ECP treatment demonstrated an attenuation of Th1-mediated cytokine secretion by activated T-helper cells, a shift in the DC1/DC2 ratio favoring plasmacytoid rather than monocytoid dendritic cell profiles, and a decrease in antigen responsiveness by dendritic cells. The implications of these immunomodulatory effects of ECP on pathogenesis and clinical outcome remains a fertile area for future research.
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Affiliation(s)
- F M Foss
- Bone Marrow Transplantation and Experimental Therapeutics, Tufts New England Medical Center, Boston, MA 02111, USA
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Narayanasami U, Kanteti R, Morelli J, Klekar A, Al-Olama A, Keating C, O'Connor C, Berkman E, Erban JK, Sprague KA, Miller KB, Schenkein DP. Randomized trial of filgrastim versus chemotherapy and filgrastim mobilization of hematopoietic progenitor cells for rescue in autologous transplantation. Blood 2001; 98:2059-64. [PMID: 11567990 DOI: 10.1182/blood.v98.7.2059] [Citation(s) in RCA: 122] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Peripheral blood cell (PBC) rescue has become the mainstay for autologous transplantation in patients with lymphoma, multiple myeloma, and solid tumors. Different methods of hematopoietic progenitor cell (HPC) mobilization are in use without an established standard. Forty-seven patients with relapsed or refractory lymphoma received salvage chemotherapy and were randomized to have HPC mobilization using filgrastim [granulocyte-colony-stimulating factor (G-CSF)] alone for 4 days at 10 microg/kg per day (arm A) or cyclophosphamide (5 g/m(2)) and G-CSF at 10 microg/kg per day until hematologic recovery (arm B). Engraftment and ease of PBC collection were primary outcomes. All patients underwent the same high-dose chemotherapy followed by reinfusion of PBCs. There were no differences in median time to neutrophil engraftment (11 days in both arms; P =.5) or platelet engraftment (14 days in arm A, 13 days in arm B; P =.35). Combined chemotherapy and G-CSF resulted in higher CD34(+) cell collection than G-CSF alone (median, 7.2 vs 2.5 x 10(6) cells/kg; P =.004), but this did not impact engraftment. No differences were found in other PBC harvest outcomes or resource utilization measures. A high degree of tumor contamination, as studied by consensus CDR3 polymerase chain reaction of the mobilized PBCs, was present in both arms (92% in arm A vs 90% in arm B; P = 1). No differences were found in overall survival or progression-free survival at a median follow-up of 21 months. This randomized trial provides clinical evidence that the use of G-CSF alone is adequate for HPC mobilization, even in heavily pretreated patients with relapsed lymphoma.
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Affiliation(s)
- U Narayanasami
- Division of Hematology-Oncology, Cancer Center and Tupper Research Institute, New England Medical Center, Boston, MA 02111, USA
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