Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae)

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Standard

Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae). / Fentaw, Eshetu; Dagne, Kifle; Rønsted, Nina; Demissew, Sebsebe; Grace, Olwen Megan.

I: Kew Bulletin, Bind 68, Nr. 4, 12.2013, s. 599-607.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Fentaw, E, Dagne, K, Rønsted, N, Demissew, S & Grace, OM 2013, 'Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae)', Kew Bulletin, bind 68, nr. 4, s. 599-607. https://doi.org/10.1007/s12225-013-9475-8

APA

Fentaw, E., Dagne, K., Rønsted, N., Demissew, S., & Grace, O. M. (2013). Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae). Kew Bulletin, 68(4), 599-607. https://doi.org/10.1007/s12225-013-9475-8

Vancouver

Fentaw E, Dagne K, Rønsted N, Demissew S, Grace OM. Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae). Kew Bulletin. 2013 dec.;68(4):599-607. https://doi.org/10.1007/s12225-013-9475-8

Author

Fentaw, Eshetu ; Dagne, Kifle ; Rønsted, Nina ; Demissew, Sebsebe ; Grace, Olwen Megan. / Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae). I: Kew Bulletin. 2013 ; Bind 68, Nr. 4. s. 599-607.

Bibtex

@article{a8c27c18341342e398edd5e2a52075a9,
title = "Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae)",
abstract = "A cytogenetic survey of 18 species in the succulent-leaved genus Aloe L. (Xanthorrhoeaceae subfamily Asphodeloideae) in Ethiopia was undertaken towards a more complete genetic characterisation of the genus throughout its distribution in Africa, Arabia and Madagascar. Somatic metaphase chromosomes of all species studied showed the same diploid chromosome number of 2n = 14, consisting of four pairs of long and three pairs of short chromosomes, with the exception of A. weloensis (2n = 14+1B). Symmetry was characterised as Stebbins type 2B and the asymmetry indices AsK%, TF%, A1 and A2 revealed minor karyotypic variation typical of closely related species. The metrics showed that A. benishangulana has a marginally higher degree of asymmetry than is typical, and the pubescent-flowered A. trichosantha has a more symmetrical karyotype than most other species. We suggest that structural genome changes and ecological factors are the main drivers of speciation in Aloe. ",
author = "Eshetu Fentaw and Kifle Dagne and Nina R{\o}nsted and Sebsebe Demissew and Grace, {Olwen Megan}",
year = "2013",
month = dec,
doi = "10.1007/s12225-013-9475-8",
language = "English",
volume = "68",
pages = "599--607",
journal = "Kew Bulletin",
issn = "0075-5974",
publisher = "Springer",
number = "4",

}

RIS

TY - JOUR

T1 - Karyotypes in Ethiopian Aloe species (Xanthorrhoeaceae: Asphodeloideae)

AU - Fentaw, Eshetu

AU - Dagne, Kifle

AU - Rønsted, Nina

AU - Demissew, Sebsebe

AU - Grace, Olwen Megan

PY - 2013/12

Y1 - 2013/12

N2 - A cytogenetic survey of 18 species in the succulent-leaved genus Aloe L. (Xanthorrhoeaceae subfamily Asphodeloideae) in Ethiopia was undertaken towards a more complete genetic characterisation of the genus throughout its distribution in Africa, Arabia and Madagascar. Somatic metaphase chromosomes of all species studied showed the same diploid chromosome number of 2n = 14, consisting of four pairs of long and three pairs of short chromosomes, with the exception of A. weloensis (2n = 14+1B). Symmetry was characterised as Stebbins type 2B and the asymmetry indices AsK%, TF%, A1 and A2 revealed minor karyotypic variation typical of closely related species. The metrics showed that A. benishangulana has a marginally higher degree of asymmetry than is typical, and the pubescent-flowered A. trichosantha has a more symmetrical karyotype than most other species. We suggest that structural genome changes and ecological factors are the main drivers of speciation in Aloe.

AB - A cytogenetic survey of 18 species in the succulent-leaved genus Aloe L. (Xanthorrhoeaceae subfamily Asphodeloideae) in Ethiopia was undertaken towards a more complete genetic characterisation of the genus throughout its distribution in Africa, Arabia and Madagascar. Somatic metaphase chromosomes of all species studied showed the same diploid chromosome number of 2n = 14, consisting of four pairs of long and three pairs of short chromosomes, with the exception of A. weloensis (2n = 14+1B). Symmetry was characterised as Stebbins type 2B and the asymmetry indices AsK%, TF%, A1 and A2 revealed minor karyotypic variation typical of closely related species. The metrics showed that A. benishangulana has a marginally higher degree of asymmetry than is typical, and the pubescent-flowered A. trichosantha has a more symmetrical karyotype than most other species. We suggest that structural genome changes and ecological factors are the main drivers of speciation in Aloe.

U2 - 10.1007/s12225-013-9475-8

DO - 10.1007/s12225-013-9475-8

M3 - Journal article

VL - 68

SP - 599

EP - 607

JO - Kew Bulletin

JF - Kew Bulletin

SN - 0075-5974

IS - 4

ER -

ID: 46112211