Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)

The spermatogenesis of four species of haplogyne spiders from Argentina is analyzed. Dysdera crocota (Dysderidae) (n = 5 + X0) has holokinetic chromosomes, achiasmatic male meiosis and a post-reductional division of the sex chromosome. Ariadna boesenbergii (Segestriidae) (n = 4 + X0) also possesses...

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Autores principales:	Rodríguez Gil, Sergio Gustavo, Mola, Liliana Maria, Papeschi, Alba Graciela, Scioscia, Cristina Luisa
Publicado:	2002
Materias:	Cytogenetics Haplogyne Meiosis Arachnida Araneae Ariadna Ariadna boesenbergii Dysdera crocata Dysdera crocota Dysderidae Filistatidae Haplogynae Invertebrata Kukulcania hibernalis Scytodes Scytodes globula Scytodidae Segestriidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v30_n1_p47_RodriguezGil http://hdl.handle.net/20.500.12110/paper_01618202_v30_n1_p47_RodriguezGil
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01618202_v30_n1_p47_RodriguezGil
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spelling	paper:paper_01618202_v30_n1_p47_RodriguezGil2023-06-08T15:13:31Z Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae) Rodríguez Gil, Sergio Gustavo Mola, Liliana Maria Papeschi, Alba Graciela Scioscia, Cristina Luisa Cytogenetics Haplogyne Meiosis Arachnida Araneae Ariadna Ariadna boesenbergii Dysdera crocata Dysdera crocota Dysderidae Filistatidae Haplogynae Invertebrata Kukulcania hibernalis Kukulcania hibernalis Scytodes Scytodes globula Scytodidae Segestriidae The spermatogenesis of four species of haplogyne spiders from Argentina is analyzed. Dysdera crocota (Dysderidae) (n = 5 + X0) has holokinetic chromosomes, achiasmatic male meiosis and a post-reductional division of the sex chromosome. Ariadna boesenbergii (Segestriidae) (n = 4 + X0) also possesses holokinetic chromosomes, but meiosis is chiasmatic and the X chromosome divides pre-reductionally. Kukulcania hibernalis (Filistatidae) (n = 11 + X1X20) and Scytodes globula (Scytodidae) (n = 6 + X0) have metacentric and submetacentric chromosomes, chiasmatic meiosis and the sex chromosomes divide pre-reductionally. Kukulcania hibernalis possesses a bimodal karyotype and a particular chromatin coiling during prophase I, while Scytodes globula has striking proximal localization of chiasmata. These results show that Haplogynae present high cytogenetic heterogeneity: species with holokinetic chromosomes as well as species with monocentric chromosomes (metacentric and submetacentric), and species with low diploid numbers, achiasmatic meiosis and proximal chiasma localization. Fil:Rodríguez Gil, S.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mola, L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Papeschi, A.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scioscia, C.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v30_n1_p47_RodriguezGil http://hdl.handle.net/20.500.12110/paper_01618202_v30_n1_p47_RodriguezGil
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cytogenetics Haplogyne Meiosis Arachnida Araneae Ariadna Ariadna boesenbergii Dysdera crocata Dysdera crocota Dysderidae Filistatidae Haplogynae Invertebrata Kukulcania hibernalis Kukulcania hibernalis Scytodes Scytodes globula Scytodidae Segestriidae
spellingShingle	Cytogenetics Haplogyne Meiosis Arachnida Araneae Ariadna Ariadna boesenbergii Dysdera crocata Dysdera crocota Dysderidae Filistatidae Haplogynae Invertebrata Kukulcania hibernalis Kukulcania hibernalis Scytodes Scytodes globula Scytodidae Segestriidae Rodríguez Gil, Sergio Gustavo Mola, Liliana Maria Papeschi, Alba Graciela Scioscia, Cristina Luisa Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
topic_facet	Cytogenetics Haplogyne Meiosis Arachnida Araneae Ariadna Ariadna boesenbergii Dysdera crocata Dysdera crocota Dysderidae Filistatidae Haplogynae Invertebrata Kukulcania hibernalis Kukulcania hibernalis Scytodes Scytodes globula Scytodidae Segestriidae
description	The spermatogenesis of four species of haplogyne spiders from Argentina is analyzed. Dysdera crocota (Dysderidae) (n = 5 + X0) has holokinetic chromosomes, achiasmatic male meiosis and a post-reductional division of the sex chromosome. Ariadna boesenbergii (Segestriidae) (n = 4 + X0) also possesses holokinetic chromosomes, but meiosis is chiasmatic and the X chromosome divides pre-reductionally. Kukulcania hibernalis (Filistatidae) (n = 11 + X1X20) and Scytodes globula (Scytodidae) (n = 6 + X0) have metacentric and submetacentric chromosomes, chiasmatic meiosis and the sex chromosomes divide pre-reductionally. Kukulcania hibernalis possesses a bimodal karyotype and a particular chromatin coiling during prophase I, while Scytodes globula has striking proximal localization of chiasmata. These results show that Haplogynae present high cytogenetic heterogeneity: species with holokinetic chromosomes as well as species with monocentric chromosomes (metacentric and submetacentric), and species with low diploid numbers, achiasmatic meiosis and proximal chiasma localization.
author	Rodríguez Gil, Sergio Gustavo Mola, Liliana Maria Papeschi, Alba Graciela Scioscia, Cristina Luisa
author_facet	Rodríguez Gil, Sergio Gustavo Mola, Liliana Maria Papeschi, Alba Graciela Scioscia, Cristina Luisa
author_sort	Rodríguez Gil, Sergio Gustavo
title	Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
title_short	Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
title_full	Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
title_fullStr	Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
title_full_unstemmed	Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)
title_sort	cytogenetic heterogeneity in common haplogyne spiders from argentina (arachnida, araneae)
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v30_n1_p47_RodriguezGil http://hdl.handle.net/20.500.12110/paper_01618202_v30_n1_p47_RodriguezGil
work_keys_str_mv	AT rodriguezgilsergiogustavo cytogeneticheterogeneityincommonhaplogynespidersfromargentinaarachnidaaraneae AT molalilianamaria cytogeneticheterogeneityincommonhaplogynespidersfromargentinaarachnidaaraneae AT papeschialbagraciela cytogeneticheterogeneityincommonhaplogynespidersfromargentinaarachnidaaraneae AT sciosciacristinaluisa cytogeneticheterogeneityincommonhaplogynespidersfromargentinaarachnidaaraneae
_version_	1768545967731113984

Cytogenetic heterogeneity in common haplogyne spiders from Argentina (Arachnida, Araneae)

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