Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)

Passifora has nearly 525 spp. with x = 9 or 6. A cytogenetic study of four species from subgenus Passifora that grow in Argentina was performed. Giemsa technique, fuorescent chromosome banding CMA/DAPI and FISH (probe 18-5,8-26S and 5S) were used in mitotic chromosomes. P. caerulea, P. tucumanensis...

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Guardado en:
Detalles Bibliográficos
Publicado: 2013
Materias:
DNAr 18-5.8-26S and 5S
Heterochromatin
Karyotypes
Passifora
Passiflora
Passiflora caerulea
Passiflora cincinnata
Passiflora mooreana
Passifloraceae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0373580X_v48_n1_p103_Chiapero
http://hdl.handle.net/20.500.12110/paper_0373580X_v48_n1_p103_Chiapero
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0373580X_v48_n1_p103_Chiapero
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spelling paper:paper_0373580X_v48_n1_p103_Chiapero2023-06-08T15:38:00Z Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae) DNAr 18-5.8-26S and 5S Heterochromatin Karyotypes Passifora Passiflora Passiflora caerulea Passiflora cincinnata Passiflora mooreana Passifloraceae Passifora has nearly 525 spp. with x = 9 or 6. A cytogenetic study of four species from subgenus Passifora that grow in Argentina was performed. Giemsa technique, fuorescent chromosome banding CMA/DAPI and FISH (probe 18-5,8-26S and 5S) were used in mitotic chromosomes. P. caerulea, P. tucumanensis and P. cincinnata resulted diploid (2n = 18) while P. mooreana tetraploid (2n = 36). The karyotypes were highly symmetrical, with the formula 8 m + 1 sm- , duplicated in P. mooreana. With CMA/DAPI, diploids showed 2-3 pairs of terminal bands CMA /DAPI , whereas the tetraploid fve bands, associated t+o NOR-in all cases. With FISH, the loci 18-5.8-26S coincided in number and position with the CMA /DAPI bands. In each species, the number of sites for 5S rDNA genes agreed with the ploidy level. Data of P. tucumanensis and P. mooreana are here reported for the frst time, being this last species the frst known tetraploid for subgenus Passifora. FISH patterns and heterochromatic bands varied among the Passifora species studied, mainly with respect to the number and distribution of the signals. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0373580X_v48_n1_p103_Chiapero http://hdl.handle.net/20.500.12110/paper_0373580X_v48_n1_p103_Chiapero
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic DNAr 18-5.8-26S and 5S
Heterochromatin
Karyotypes
Passifora
Passiflora
Passiflora caerulea
Passiflora cincinnata
Passiflora mooreana
Passifloraceae
spellingShingle DNAr 18-5.8-26S and 5S
Heterochromatin
Karyotypes
Passifora
Passiflora
Passiflora caerulea
Passiflora cincinnata
Passiflora mooreana
Passifloraceae
Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
topic_facet DNAr 18-5.8-26S and 5S
Heterochromatin
Karyotypes
Passifora
Passiflora
Passiflora caerulea
Passiflora cincinnata
Passiflora mooreana
Passifloraceae
description Passifora has nearly 525 spp. with x = 9 or 6. A cytogenetic study of four species from subgenus Passifora that grow in Argentina was performed. Giemsa technique, fuorescent chromosome banding CMA/DAPI and FISH (probe 18-5,8-26S and 5S) were used in mitotic chromosomes. P. caerulea, P. tucumanensis and P. cincinnata resulted diploid (2n = 18) while P. mooreana tetraploid (2n = 36). The karyotypes were highly symmetrical, with the formula 8 m + 1 sm- , duplicated in P. mooreana. With CMA/DAPI, diploids showed 2-3 pairs of terminal bands CMA /DAPI , whereas the tetraploid fve bands, associated t+o NOR-in all cases. With FISH, the loci 18-5.8-26S coincided in number and position with the CMA /DAPI bands. In each species, the number of sites for 5S rDNA genes agreed with the ploidy level. Data of P. tucumanensis and P. mooreana are here reported for the frst time, being this last species the frst known tetraploid for subgenus Passifora. FISH patterns and heterochromatic bands varied among the Passifora species studied, mainly with respect to the number and distribution of the signals.
title Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
title_short Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
title_full Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
title_fullStr Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
title_full_unstemmed Cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
title_sort cytogenetic studies in species of passiflora subgenus passiflora (passifloraceae)
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0373580X_v48_n1_p103_Chiapero
http://hdl.handle.net/20.500.12110/paper_0373580X_v48_n1_p103_Chiapero
_version_ 1768545787143258112

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