In this paper we describe a new Robertsonian (Rb) race of the house mouse from Vulcano (Aeolian a... more In this paper we describe a new Robertsonian (Rb) race of the house mouse from Vulcano (Aeolian archipelago) through the identification of the metacentric chromosomes. We analysed fifteen mice. All the specimens were found to have the same karyotype 2n=26. This karyotype is characterized by Rb(1.2), Rb(3.9), Rb(4.13), Rb(5.14), Rb(8.12), Rb(10.16) and Rb(15.17). The differences between the race of Vulcano and the races in a neighbour island (Lipari) consist in the presence of Rb(10.16) and Rb(15.17) in the former and Rb(6.16) and Rb(10.15) in the latter. We discuss the possible hypotheses regarding the origin between these two races including the possible occurrence of a whole arm reciprocal translocation (WART) on the Vulcano island.
ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift V... more ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift Valley, is described and illustrated. The taxonomic and phylogenetic position of Tarchonanthopria is discussed using evidence from a preliminary molecular analysis of the new genus and a group of related genera, as well as results from a companion paper implementing a morphological cladistic analysis of all 47 extant and fossil Meligethinae genera. Morphological data suggest a taxonomic position of the new genus near the speciose Palaeotropical genus Pria Stephens, 1830, whereas molecular data suggest a closer relationship with the African genus Micropria Grouvelle, 1899. Larval host-plants of the single known species of the new genus are male inflorescences of Asteraceae trees in the genus Tarchonanthus Linnaeus, 1753. Tarchonanthopria freidbergi does not exhibit any close phylogenetic relationships with other Afrotropical meligethine genera associated with Asteraceae Tarchonantheae (i.e. members of the African ‘Anthystrix genus-complex’). A table is presented summarizing all available data on Meligethinae larval–host plant relationships.http://zoobank.org/urn:lsid:zoobank.org:act:AFC89330-3FA8-46E5-A8E5-2ADCB6D5A57D
We evaluate the intra- and interspecific diversity in the four South African rodent species of th... more We evaluate the intra- and interspecific diversity in the four South African rodent species of the genus Dendromus. The molecular phylogenetic analysis on twenty-three individuals have been conducted on a combined dataset of nuclear and mitochondrial markers. Moreover, the extent and processes underlying chromosomal variation, have been investigated on three species by mean of G-, C-bands, NORs and Zoo-FISH analysis. The molecular analysis shows the presence of six monophyletic lineages corresponding to D. mesomelas, D. mystacalis and four lineages within D. cfr. melanotis with high divergence values (ranges: 10.6% - 18.3%) that raises the question of the possible presence of cryptic species. The first description of the karyotype for D. mesomelas and D. mystacalis and C- and G- banding for one lineage of D. cfr. melanotis are reported highlighting an extended karyotype reorganization in the genus. Furthermore, the G-banding and Zoo-FISH evidenced an autosome-sex chromosome transloc...
ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift V... more ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift Valley, is described and illustrated. The taxonomic and phylogenetic position of Tarchonanthopria is discussed using evidence from a preliminary molecular analysis of the new genus and a group of related genera, as well as results from a companion paper implementing a morphological cladistic analysis of all 47 extant and fossil Meligethinae genera. Morphological data suggest a taxonomic position of the new genus near the speciose Palaeotropical genus Pria Stephens, 1830, whereas molecular data suggest a closer relationship with the African genus Micropria Grouvelle, 1899. Larval host-plants of the single known species of the new genus are male inflorescences of Asteraceae trees in the genus Tarchonanthus Linnaeus, 1753. Tarchonanthopria freidbergi does not exhibit any close phylogenetic relationships with other Afrotropical meligethine genera associated with Asteraceae Tarchonantheae (i.e. members of the African ‘Anthystrix genus-complex’). A table is presented summarizing all available data on Meligethinae larval–host plant relationships.http://zoobank.org/urn:lsid:zoobank.org:act:AFC89330-3FA8-46E5-A8E5-2ADCB6D5A57D
... Massimiliano Scalici a, , Emanuela Solano b , and Giancarlo Gibertini a. ... arrested dividin... more ... Massimiliano Scalici a, , Emanuela Solano b , and Giancarlo Gibertini a. ... arrested dividing cells in metaphase in the testes of various crustacean species (see, for example, Hasegawa, 1981; Murofushi and Deguchi, 1983) or alternatively in fertilised eggs (Campos-Ramos, 1997). ...
In this paper we describe a new Robertsonian (Rb) race of the house mouse from Vulcano (Aeolian a... more In this paper we describe a new Robertsonian (Rb) race of the house mouse from Vulcano (Aeolian archipelago) through the identification of the metacentric chromosomes. We analysed fifteen mice. All the specimens were found to have the same karyotype 2n=26. This karyotype is characterized by Rb(1.2), Rb(3.9), Rb(4.13), Rb(5.14), Rb(8.12), Rb(10.16) and Rb(15.17). The differences between the race of Vulcano and the races in a neighbour island (Lipari) consist in the presence of Rb(10.16) and Rb(15.17) in the former and Rb(6.16) and Rb(10.15) in the latter. We discuss the possible hypotheses regarding the origin between these two races including the possible occurrence of a whole arm reciprocal translocation (WART) on the Vulcano island.
ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift V... more ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift Valley, is described and illustrated. The taxonomic and phylogenetic position of Tarchonanthopria is discussed using evidence from a preliminary molecular analysis of the new genus and a group of related genera, as well as results from a companion paper implementing a morphological cladistic analysis of all 47 extant and fossil Meligethinae genera. Morphological data suggest a taxonomic position of the new genus near the speciose Palaeotropical genus Pria Stephens, 1830, whereas molecular data suggest a closer relationship with the African genus Micropria Grouvelle, 1899. Larval host-plants of the single known species of the new genus are male inflorescences of Asteraceae trees in the genus Tarchonanthus Linnaeus, 1753. Tarchonanthopria freidbergi does not exhibit any close phylogenetic relationships with other Afrotropical meligethine genera associated with Asteraceae Tarchonantheae (i.e. members of the African ‘Anthystrix genus-complex’). A table is presented summarizing all available data on Meligethinae larval–host plant relationships.http://zoobank.org/urn:lsid:zoobank.org:act:AFC89330-3FA8-46E5-A8E5-2ADCB6D5A57D
We evaluate the intra- and interspecific diversity in the four South African rodent species of th... more We evaluate the intra- and interspecific diversity in the four South African rodent species of the genus Dendromus. The molecular phylogenetic analysis on twenty-three individuals have been conducted on a combined dataset of nuclear and mitochondrial markers. Moreover, the extent and processes underlying chromosomal variation, have been investigated on three species by mean of G-, C-bands, NORs and Zoo-FISH analysis. The molecular analysis shows the presence of six monophyletic lineages corresponding to D. mesomelas, D. mystacalis and four lineages within D. cfr. melanotis with high divergence values (ranges: 10.6% - 18.3%) that raises the question of the possible presence of cryptic species. The first description of the karyotype for D. mesomelas and D. mystacalis and C- and G- banding for one lineage of D. cfr. melanotis are reported highlighting an extended karyotype reorganization in the genus. Furthermore, the G-banding and Zoo-FISH evidenced an autosome-sex chromosome transloc...
ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift V... more ABSTRACT The pollen beetle Tarchonanthopria freidbergi gen. nov., sp. nov., from SW Kenya, Rift Valley, is described and illustrated. The taxonomic and phylogenetic position of Tarchonanthopria is discussed using evidence from a preliminary molecular analysis of the new genus and a group of related genera, as well as results from a companion paper implementing a morphological cladistic analysis of all 47 extant and fossil Meligethinae genera. Morphological data suggest a taxonomic position of the new genus near the speciose Palaeotropical genus Pria Stephens, 1830, whereas molecular data suggest a closer relationship with the African genus Micropria Grouvelle, 1899. Larval host-plants of the single known species of the new genus are male inflorescences of Asteraceae trees in the genus Tarchonanthus Linnaeus, 1753. Tarchonanthopria freidbergi does not exhibit any close phylogenetic relationships with other Afrotropical meligethine genera associated with Asteraceae Tarchonantheae (i.e. members of the African ‘Anthystrix genus-complex’). A table is presented summarizing all available data on Meligethinae larval–host plant relationships.http://zoobank.org/urn:lsid:zoobank.org:act:AFC89330-3FA8-46E5-A8E5-2ADCB6D5A57D
... Massimiliano Scalici a, , Emanuela Solano b , and Giancarlo Gibertini a. ... arrested dividin... more ... Massimiliano Scalici a, , Emanuela Solano b , and Giancarlo Gibertini a. ... arrested dividing cells in metaphase in the testes of various crustacean species (see, for example, Hasegawa, 1981; Murofushi and Deguchi, 1983) or alternatively in fertilised eggs (Campos-Ramos, 1997). ...
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