Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)

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The genera Camptosema, Galactia and Collaea are grouped in a complex with exomorphological similarities and different criteria have been adopted to circumscribe them. The neotropical genus Camptosema in its southern distribution is represented by four species of which only the type, C. rubicundum, s...

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Autores principales: Sede, S.M., Fortunato, R.H., Poggio, L.
Formato: JOUR
Materias:
Ag-NOR sites
Chromosome numbers
FISH
Karyotype
rDNA sites
chromosome
cytology
taxonomy
South America
Camptosema
Fabaceae
Galactia
Papilionoideae
Phaseoleae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244074_v152_n2_p235_Sede
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00244074_v152_n2_p235_Sede
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spelling todo:paper_00244074_v152_n2_p235_Sede2023-10-03T14:35:03Z Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae) Sede, S.M. Fortunato, R.H. Poggio, L. Ag-NOR sites Chromosome numbers FISH Karyotype rDNA sites chromosome cytology taxonomy South America Camptosema Fabaceae Galactia Papilionoideae Phaseoleae The genera Camptosema, Galactia and Collaea are grouped in a complex with exomorphological similarities and different criteria have been adopted to circumscribe them. The neotropical genus Camptosema in its southern distribution is represented by four species of which only the type, C. rubicundum, shows the diagnostic features of the genus. The other three taxa, C. paraguariense, C. praeandinum and C. scarlatinum are related morphologically to Camptosema s.s., Galactia and Collaea. In the subtribe Diocleinae, Camptosema is characterized by n = 11 chromosomes and Galactia and Collaea by n = 10. The aim of this study was to analyse cytological characters with special emphasis on the species of uncertain taxonomy. The most relevant character is chromosome number, which in the conflicting species of Camptosema is the same as in Galactia and Collaea. In this paper the chromosome numbers of C. praeandinum (2n = 20), C. paraguariense (n = 10) and C. scarlatinum (n = 10) are reported for the first time. These results, together with the morphological affinity and the phylogenetic hypotheses of other authors, would be of use for revising the current circumscription of these species. © 2006 The Linnean Society of London. Fil:Sede, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00244074_v152_n2_p235_Sede
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ag-NOR sites
Chromosome numbers
FISH
Karyotype
rDNA sites
chromosome
cytology
taxonomy
South America
Camptosema
Fabaceae
Galactia
Papilionoideae
Phaseoleae
spellingShingle Ag-NOR sites
Chromosome numbers
FISH
Karyotype
rDNA sites
chromosome
cytology
taxonomy
South America
Camptosema
Fabaceae
Galactia
Papilionoideae
Phaseoleae
Sede, S.M.
Fortunato, R.H.
Poggio, L.
Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
topic_facet Ag-NOR sites
Chromosome numbers
FISH
Karyotype
rDNA sites
chromosome
cytology
taxonomy
South America
Camptosema
Fabaceae
Galactia
Papilionoideae
Phaseoleae
description The genera Camptosema, Galactia and Collaea are grouped in a complex with exomorphological similarities and different criteria have been adopted to circumscribe them. The neotropical genus Camptosema in its southern distribution is represented by four species of which only the type, C. rubicundum, shows the diagnostic features of the genus. The other three taxa, C. paraguariense, C. praeandinum and C. scarlatinum are related morphologically to Camptosema s.s., Galactia and Collaea. In the subtribe Diocleinae, Camptosema is characterized by n = 11 chromosomes and Galactia and Collaea by n = 10. The aim of this study was to analyse cytological characters with special emphasis on the species of uncertain taxonomy. The most relevant character is chromosome number, which in the conflicting species of Camptosema is the same as in Galactia and Collaea. In this paper the chromosome numbers of C. praeandinum (2n = 20), C. paraguariense (n = 10) and C. scarlatinum (n = 10) are reported for the first time. These results, together with the morphological affinity and the phylogenetic hypotheses of other authors, would be of use for revising the current circumscription of these species. © 2006 The Linnean Society of London.
format JOUR
author Sede, S.M.
Fortunato, R.H.
Poggio, L.
author_facet Sede, S.M.
Fortunato, R.H.
Poggio, L.
author_sort Sede, S.M.
title Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
title_short Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
title_full Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
title_fullStr Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
title_full_unstemmed Chromosome evaluation of southern South American species of Camptosema and allied genera (Diocleinae - Phaseoleae - Papilionoideae - Leguminosae)
title_sort chromosome evaluation of southern south american species of camptosema and allied genera (diocleinae - phaseoleae - papilionoideae - leguminosae)
url http://hdl.handle.net/20.500.12110/paper_00244074_v152_n2_p235_Sede
work_keys_str_mv AT sedesm chromosomeevaluationofsouthernsouthamericanspeciesofcamptosemaandalliedgeneradiocleinaephaseoleaepapilionoideaeleguminosae
AT fortunatorh chromosomeevaluationofsouthernsouthamericanspeciesofcamptosemaandalliedgeneradiocleinaephaseoleaepapilionoideaeleguminosae
AT poggiol chromosomeevaluationofsouthernsouthamericanspeciesofcamptosemaandalliedgeneradiocleinaephaseoleaepapilionoideaeleguminosae
_version_ 1782030466518351872

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