Karyotype and genome size in Euterpe Mart. (Arecaceae) species
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/30407 |
Resumo: | Euterpe (Martius, 1823), a genus from Central and South America, has species with high economic importance in Brazil, because of their palm heart and fruits, known as açaí berries. Breeding programs have been conducted to increase yield and establish cultivation systems to replace the extraction of wild material. These programs need basic information about the genome of these species to better explore the available genetic variability. The aim of this study was to compare E. edulis (Martius, 1824), E. oleracea (Martius, 1824) and E. precatoria (Martius, 1842), with regard to karyotype, type of interphase nucleus and nuclear DNA amount. Metaphase chromosomes and interphase nuclei from root tip meristematic cells were obtained by the squashing technique and solid stained for microscope analysis. The DNA amount was estimated by flow cytometry. There were previous reports on the chromosome number of E. edulis and E. oleracea, but chromosome morphology of these two species and the whole karyotype of E. precatoria are reported for the first time. The species have 2n=36, a number considered as a pleisomorphic feature in Arecoideae since the modern species, according to floral morphology, have the lowest chromosome number (2n=28 and 2n=30). The three Euterpe species also have the same type of interphase nuclei, classified as semi-reticulate. The species differed on karyotypic formulas, on localization of secondary constriction and genome size. The data suggest that the main forces driving Euterpe karyotype evolution were structural rearrangements, such as inversions and translocations that alter chromosome morphology, and either deletion or amplification that led to changes in chromosome size. |
id |
UFLA_0e9f6e3e7f540cb61e3c11360f5bdde2 |
---|---|
oai_identifier_str |
oai:localhost:1/30407 |
network_acronym_str |
UFLA |
network_name_str |
Repositório Institucional da UFLA |
repository_id_str |
|
spelling |
Karyotype and genome size in Euterpe Mart. (Arecaceae) speciesC-valueInterphase nucleusChromosomal evolutionFlow cytometryEuterpe (Martius, 1823), a genus from Central and South America, has species with high economic importance in Brazil, because of their palm heart and fruits, known as açaí berries. Breeding programs have been conducted to increase yield and establish cultivation systems to replace the extraction of wild material. These programs need basic information about the genome of these species to better explore the available genetic variability. The aim of this study was to compare E. edulis (Martius, 1824), E. oleracea (Martius, 1824) and E. precatoria (Martius, 1842), with regard to karyotype, type of interphase nucleus and nuclear DNA amount. Metaphase chromosomes and interphase nuclei from root tip meristematic cells were obtained by the squashing technique and solid stained for microscope analysis. The DNA amount was estimated by flow cytometry. There were previous reports on the chromosome number of E. edulis and E. oleracea, but chromosome morphology of these two species and the whole karyotype of E. precatoria are reported for the first time. The species have 2n=36, a number considered as a pleisomorphic feature in Arecoideae since the modern species, according to floral morphology, have the lowest chromosome number (2n=28 and 2n=30). The three Euterpe species also have the same type of interphase nuclei, classified as semi-reticulate. The species differed on karyotypic formulas, on localization of secondary constriction and genome size. The data suggest that the main forces driving Euterpe karyotype evolution were structural rearrangements, such as inversions and translocations that alter chromosome morphology, and either deletion or amplification that led to changes in chromosome size.Pensoft Publishers2018-09-11T18:19:12Z2018-09-11T18:19:12Z2016-01-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfOLIVEIRA, L. C. et al. Karyotype and genome size in Euterpe Mart. (Arecaceae) species. Comparative Cytogenetics, [S.l.], v. 10, n. 1, p. 17-25, Jan. 2016.http://repositorio.ufla.br/jspui/handle/1/30407Comparative Cytogeneticsreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessOliveira, Ludmila CristinaOliveira, Maria do Socorro Padilha deDavide, Lisete ChammaTorres, Giovana Augustaeng2018-09-11T18:19:13Zoai:localhost:1/30407Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2018-09-11T18:19:13Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
title |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
spellingShingle |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species Oliveira, Ludmila Cristina C-value Interphase nucleus Chromosomal evolution Flow cytometry |
title_short |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
title_full |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
title_fullStr |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
title_full_unstemmed |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
title_sort |
Karyotype and genome size in Euterpe Mart. (Arecaceae) species |
author |
Oliveira, Ludmila Cristina |
author_facet |
Oliveira, Ludmila Cristina Oliveira, Maria do Socorro Padilha de Davide, Lisete Chamma Torres, Giovana Augusta |
author_role |
author |
author2 |
Oliveira, Maria do Socorro Padilha de Davide, Lisete Chamma Torres, Giovana Augusta |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Ludmila Cristina Oliveira, Maria do Socorro Padilha de Davide, Lisete Chamma Torres, Giovana Augusta |
dc.subject.por.fl_str_mv |
C-value Interphase nucleus Chromosomal evolution Flow cytometry |
topic |
C-value Interphase nucleus Chromosomal evolution Flow cytometry |
description |
Euterpe (Martius, 1823), a genus from Central and South America, has species with high economic importance in Brazil, because of their palm heart and fruits, known as açaí berries. Breeding programs have been conducted to increase yield and establish cultivation systems to replace the extraction of wild material. These programs need basic information about the genome of these species to better explore the available genetic variability. The aim of this study was to compare E. edulis (Martius, 1824), E. oleracea (Martius, 1824) and E. precatoria (Martius, 1842), with regard to karyotype, type of interphase nucleus and nuclear DNA amount. Metaphase chromosomes and interphase nuclei from root tip meristematic cells were obtained by the squashing technique and solid stained for microscope analysis. The DNA amount was estimated by flow cytometry. There were previous reports on the chromosome number of E. edulis and E. oleracea, but chromosome morphology of these two species and the whole karyotype of E. precatoria are reported for the first time. The species have 2n=36, a number considered as a pleisomorphic feature in Arecoideae since the modern species, according to floral morphology, have the lowest chromosome number (2n=28 and 2n=30). The three Euterpe species also have the same type of interphase nuclei, classified as semi-reticulate. The species differed on karyotypic formulas, on localization of secondary constriction and genome size. The data suggest that the main forces driving Euterpe karyotype evolution were structural rearrangements, such as inversions and translocations that alter chromosome morphology, and either deletion or amplification that led to changes in chromosome size. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-22 2018-09-11T18:19:12Z 2018-09-11T18:19:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
OLIVEIRA, L. C. et al. Karyotype and genome size in Euterpe Mart. (Arecaceae) species. Comparative Cytogenetics, [S.l.], v. 10, n. 1, p. 17-25, Jan. 2016. http://repositorio.ufla.br/jspui/handle/1/30407 |
identifier_str_mv |
OLIVEIRA, L. C. et al. Karyotype and genome size in Euterpe Mart. (Arecaceae) species. Comparative Cytogenetics, [S.l.], v. 10, n. 1, p. 17-25, Jan. 2016. |
url |
http://repositorio.ufla.br/jspui/handle/1/30407 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pensoft Publishers |
publisher.none.fl_str_mv |
Pensoft Publishers |
dc.source.none.fl_str_mv |
Comparative Cytogenetics reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835090117459968 |