Prospection caryologique de la famille des<i>Poaceae</i>en Tunisie steppique

Ferchichi, Ali; Nabli, Mohamed Abdelhamid; Delay, Jean

doi:10.1080/12538078.1994.10515166

Cited by 5 publications

(2 citation statements)

References 32 publications

(15 reference statements)

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“…This report is in conformity with the previous report of 2n = 36 (Haroun, 2000) from outside of India. Besides, n = 9 (Ahsan & al., 1994) and n = 27 (Ferchichi & al., 1994) were also reported from outside of India. Fig.…”

Section: Alopecurus Arundinaceusmentioning

confidence: 99%

IAPT/IOPB chromosome data 26

2017

TAXON

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Section: Alopecurus Arundinaceusmentioning

confidence: 99%

IAPT/IOPB chromosome data 26

2017

TAXON

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“…, 1990b, where also plants with 2n=14 were registered (Devesa & al. 1991 Ferchichi & al. (1994), Peruzzi & Cesca (2004) and Talavera (1978) in plants from Tunisia, Italy (Calabria), and Spain (Murcia), respectively.…”

Section: Anisantha Sterilis (L) Nevski (= Bromus Sterilis L) 2n=14mentioning

confidence: 99%

Chromosome numbers are reported for plants collected during OPTIMA’s Iter Mediterraneum V to Morocco in 1992

2013

Bocconea

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Molecular phylogenetics and micromorphology of Australasian Stipeae (Poaceae), and the interrelation of whole-genome duplication and evolutionary radiations in this grass tribe

Tkach

Nobis

Schneider

et al. 2020

Preprint

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The mainly Australian grass genus Austrostipa with ca. 64 species represents a remarkable example of an evolutionary radiation. To investigate aspects of diversification, macro-and micromorphological variation in this genus we conducted a molecular phylogenetic and scanning electron microscopy (SEM) analysis including representatives from all of its accepted subgenera.Plastid DNA variation within Austrostipa was low and only few lineages were resolved. Nuclear ITS and Acc1 yielded comparable groupings of taxa and resolved subgenera Arbuscula, Petaurista, Bambusina in a common clade and as monophyletic. In summary, we suggest recognizing nine subgenera in Austrostipa.Because of its taxonomic significance in Stipeae, we studied the lemma epidermal structure in 34 representatives of Austrostipa. In most species, the lemma epidermal pattern (LEP) was relatively uniform (maize-like LEP), but in six species it was more similar to that of Stipa s.str., Neotrinia, Ptilagrostis and Orthoraphium. The species representing subgenera Lobatae, Petaurista, Bambusina and A. muelleri from subg. Tuberculatae were well-separated from all the other species included in the analysis.Two different sequence copies of Acc1 were found in polyploid Austrostipa and Anemanthele. Each of the copy types formed a single clade. This was also true of the sampled species of Stipa s.str., but their clades were strongly separated from those of Austrostipa and Anemanthele. This underlines the statement of Tzvelev (1977) that most if not all contemporary Stipeae are of hybrid origin and demonstrates it for the first time unambiguously on the molecular level. Chromosome number variation is surveyed and reviewed for the whole tribe Stipeae and interpreted in a molecular phylogenetic framework. The rather coherent picture of chromosome number variation underlines the phylogenetic and evolutionary significance of this character. The closest extant relatives of Austrostipa and Anemanthele are in the clade of Achnatherum s.str., Celtica, Oloptum and Stipellula. These genera are most abundant in Central and Eastern Asia, which makes a colonization of Australian and New Zealand from this region more likely, perhaps via long-distance dispersal, than colonization of Australia from southern South America via Antarctica as previously invoked.

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Prospection caryologique de la famille desPoaceaeen Tunisie steppique

Cited by 5 publications

References 32 publications

IAPT/IOPB chromosome data 26

IAPT/IOPB chromosome data 26

Chromosome numbers are reported for plants collected during OPTIMA’s Iter Mediterraneum V to Morocco in 1992

Molecular phylogenetics and micromorphology of Australasian Stipeae (Poaceae), and the interrelation of whole-genome duplication and evolutionary radiations in this grass tribe

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