Karyotype and seed protein analyses of Lycium(Solanaceae) in Iran

Sheidai, Masoud; Narengi, Z.; Khatamsaz, M

doi:10.1017/s0960428600001116

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…The available karyotypic data for 18 South American (BERNARDELLO et al 1995;STIEFKENS and BERNARDELLO 1996;2000;2002;, seven Asian (SHEIDAI et al 1999;DONGLI et al 2000), and fi ve southern African Lycium species (present study) suggest that speciation was not There is a common pattern of mostly m chromosomes in which a few cryptic chromosomal rearrangements may have occurred. Thus, karyotypic orthoselection seems to be in effect, preserving the more stable close complements (cf.…”

Section: Discussionmentioning

confidence: 50%

“…African Lycium species and previously examined members of tribe Lycieae share this tendency towards short chromosomes (BERNARDEL- LO et al 1995LO et al , 2008STIEFKENS and BERNARDELLO 1996, 2000, 2002SHEIDAI et al 1999;DONGLI et al 2000). Other taxa, like the large genus Solanum, include species with short (BER- NARDELLO and ANDERSON 1990;BERNARDELLO et al 1994;ACOSTA et al 2005; CHIARINI and BER-NARDELLO 2006) or longer chromosomes, from 3 to 14 μm (cf.…”

Section: Discussionmentioning

confidence: 88%

“…Our goals are as follows: (1) verifi cation of chromosome number and karyotype determination, and (2) cytogenetic characterization using CMA/DAPI banding. In addition, we discuss these data in light of existing information on evolutionary relationships in Lycium (FUKUDA et al 2001;LEVIN and MILLER 2005;LEVIN et al 2007LEVIN et al , 2009) and compare the cytogenetic information for southern African species with previous data for South American (BERNARDELLO et al 1995;STIEFKENS and BERNARDELLO 1996;2000;2002; and Asian (SHEIDAI et al 1999;DONGLI et al 2000) species. (Levin et al, 2007) and include both diploid, hermaphroditic species (L. bosciifolium, L. amoenum, L. ferocissimum, L. oxycarpum, L. tenue;Venter 2000) and polyploid, dimorphic species (L. gariepense, L. hantamense, L. tetrandrum, L. strandveldense;VENTER 2000;VENTER and VENTER 2003a, b;VENTER 2007).…”

Section: Introductionmentioning

confidence: 75%

“…Cytological information, including chromosome numbers and karyotypes, is available for many South American Lycium (BERNARDELLO 1982;BERNARDELLO et al 1995;STIEFKENS and BERNARDELLO 1996, 2000, 2002) and a few Asian species (SHEIDAI et al 1999;DONGLI et al 2000). Although chromosome numbers are available for the southern African species (MINNE 1992;SPIES et al 1993;VENTER 2000VENTER , 2007VENTER 2003a, 2003b), no karyotypes were reported.…”

Section: Introductionmentioning

confidence: 99%

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Karyotypes and ﬂuorescent chromosome banding patterns in southern AfricanLycium(Solanaceae)

et al. 2010

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-Chromosomal analyses of several southern African Lycium species resulted in diploid (2n=24: L. amoenum, L. bosciifolium, L. ferocissimum, L. oxycarpum, L. tenue), tetraploid (2n=48: L. gariepense, L. strandveldense, L. hantamense), and hexaploid (2n=72: L. tetrandrum) counts. Chromosomes in all species were short (mean length = 2.00 μm; mean haploid genome length = 23.77 μm). Further, all species shared a highly symmetrical karyotype formula with 10 m pairs and 2 sm pairs, except L. bosciifolium with only one sm pair. The fi rst m pair had a terminal microsatellite on the short arms. Fluorescent chromosome banding patterns with CMA/ DAPI staining in the diploid species showed NOR-associated heterochromatin in the fi rst satellited pair. The tetraploids L. gariepense and L. hantamense had two chromosome pairs with a CMA + /DAPI -terminal band. Phylogenetic studies have shown that the southern African species are included in a monophyletic group including all Old World Lycium; these species are likely of recent origin and, despite ploidy differences, karyotypes are remarkably similar among species. Available data for South American, Asian, and southern African Lycium indicate that there is a common pattern of mostly m chromosomes in which a few cryptic chromosomal rearrangements may have occurred, suggesting that karyotypic orthoselection has preserved similar patterns among species. Thus, these data imply that speciation in Lycium was not accompanied by changes in chromosomal morphology.

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

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Karyotypes and ﬂuorescent chromosome banding patterns in southern AfricanLycium(Solanaceae)

et al. 2010

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“…They have been examined eight South American species (BERNARDELLO et al 1995;BERNARDELLO 1996, 2000) and six Iranian species (SHEIDAI et al 1999). Thus, the goal of this work is to study the mitotic chromosomes of South American representatives of Lycium section Mesocope, with emphasis in qualitative and quantitative analyses of their karyotypes applying numerical techniques.…”

Section: Introductionmentioning

confidence: 99%

Karyotypic studies in Lycium section Mesocope (Solanaceae) from South America

Stiefkens

Bernardello

2002

Caryologia

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A new generic circumscription in tribe Lycieae (Solanaceae)

Levin

Bernardello

Whiting

et al. 2011

TAXON

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Tribe Lycieae (Solanaceae) currently includes ca. 92 species in three genera. Two genera account for only a few species, as Phrodus is monotypic and Grabowskia includes just four species. By contrast, Lycium is one of the largest genera in the family, with ca. 88 species and over 95% of the species diversity in tribe Lycieae. Previous molecular studies have suggested that Lycium is paraphyletic and that species of Grabowskia are nested within Lycium. These studies also suggested that the genus Grabowskia was monophyletic, but questioned the integrity of species within it. Likewise, although the genus is defined by a unique fruit structure, morphology is of limited use in distinguishing species within Grabowskia. Depending on the study, Phrodus microphyllus has been placed either as sister to the rest of the tribe or nested within Lycium. In the present study we include data from two nuclear regions (granule-bound starch synthase and nitrate reductase) and four plastid spacer regions (trnH-pbsA, trnD GUC -trnT GGU , rpl32-trnL UAG , ndhF-rpl32) to more clearly resolve evolutionary relationships among genera within the tribe and among species in Grabowskia. Results confirm that Lycium is paraphyletic and includes a monophyletic Grabowskia. However, inclusion of multiple accessions of several Grabowskia species does not support the maintenance of distinct species in the genus. In addition, Phrodus microphyllus is moderately supported as basal within the tribe. Given these results, which are further strengthened by morphological and cytological data, we synonymize three Grabowskia species with Grabowskia boerhaviifolia and include this species within Lycium, using its basionym, Lycium boerhaviifolium L. f. Additionally, we transfer Phrodus microphyllus to the genus Lycium, proposing a new combination: Lycium bridgesii (Miers) Levin, Miller & Bernardello. Tribe Lycieae is now monotypic, including the single genus Lycium.

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Karyotype and seed protein analyses of Lycium(Solanaceae) in Iran

Cited by 9 publications

References 10 publications

Karyotypes and ﬂuorescent chromosome banding patterns in southern AfricanLycium(Solanaceae)

Karyotypes and ﬂuorescent chromosome banding patterns in southern AfricanLycium(Solanaceae)

Karyotypic studies in Lycium section Mesocope (Solanaceae) from South America

A new generic circumscription in tribe Lycieae (Solanaceae)

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