Chromosome numbers of the Kuwaiti flora, III.

Malallah, G.; Masood, Muhammad Shahid; Al-Dosari, Modi

doi:10.3372/wi.31.31208

Cited by 6 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This report was substantiated by LEDINGHAM and REVER (1963). Chromosome counts, based on X = 8 have been reported in the vast majority of old world in Astragalus genus while counts based on base numbers X = 7 or X = 6 have been encountered in few species (MAASSOUMI 1987;BADR et al 1996;MALALLAH et al 2001;BADR and SHARAWY 2007). The preponderance of Astragalus species with a basic number of X = 8 led BADR et al (1996) to conclude that it is the primary basic number in Astragalus species.…”

Section: Resultsmentioning

confidence: 58%

“…An extensive number of cytological studies has been performed in Astragalus throughout the world, including Iran (LEDINGHAM 1960;LEDINGHAM and REVER 1963;MAASSOUMI 1987;BADR et al 1996;MALALLAH et al 2001;BADR and SHARAWY 2007;SHEIDAI et al 2009), reporting the basic chromosome numbers of x = 7, 8, 11-15 and diploid, tetraploid, hexaploid and octaploid levels for the genus. The present study reports somatic chromosome characteristics, including morphology and number of Astragalus effuses from Isfahan, Iran.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Karyotype analysis ofAstragalus effususBunge (Fabaceae)

2010

View full text Add to dashboard Cite

⎯ In this study, the karyotype analysis of Astragalus effusus Bunge species was studied using Image Analysis System. The protocol assayed consisted of the use of α-bromonaphthalene for pretreatment, Lewitsky solution for fi xation, 1N NaOH for hydrolysis and fi nally, aceto iron-hematoxylin for staining stage. The species' chromosome number was 2n = 4x = 32, chromosome lengths range from 1.57 to 2.99 µm and the length of the whole genome was 75.8 µm; also, the chromosome length and arm lengths showed this species was most likely natural autotetraploid and observed one pericentric inversion in chromosomes of the VIII group. Regarding the karyotypic symmetry, this species belongs to the 2A karyotypic symmetry class with a 7m + 2m sat + 7sm karyotype formula. Asymmetrical parameters emphasize on rather symmetry karyotype in this species. In this paper, we assess the karyotype of this species for the fi rst time.

show abstract

Section: Resultsmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Karyotype analysis ofAstragalus effususBunge (Fabaceae)

2010

View full text Add to dashboard Cite

show abstract

“…Seeds black, 0.75-1 mm long, with concentric ridges. Chromosome number 2n = 32 (Bittrich, 1986;Peruzzi & Cesca, 2004), n = 9 (Malallah & al., 2001).…”

Section: Recircumscription Of Aizooideaementioning

confidence: 99%

Disentangling the Aizooideae: New generic concepts and a new subfamily in Aizoaceae

Klak

Hanáček

Bruyns

2017

TAXON

View full text Add to dashboard Cite

Recent phylogenetic reconstruction of the Aizooideae (Aizoaceae) revealed that it and several of its genera are polyphyletic. Whereas the previous phylogeny was only based on chloroplast markers, we utilize here both nuclear and chloroplast markers. The four chloroplast markers together produce a well-resolved and well-supported phylogenetic hypothesis, while many branches in the tree derived from the nuclear internal transcribed spacer (ITS) are unsupported. The position of Acrosanthes as sister to Mesembryanthemoideae + Ruschioideae and the close relationship of Tetragonia schenckii to Tribulocarpus (Sesuvioideae) is highly supported by both nuclear and chloroplast markers. We revise the classification of the Aizoaceae, redefining subfamilial and generic boundaries to maintain monophyly. A new fifth subfamily, the Acrosanthoideae subfam. nov., is created for Acrosanthes, an isolated sister-lineage to the Mesembryanthemoideae + Ruschioideae. It is the only subfamily endemic to mesic fynbos and all other subfamilies are mainly associated with the more arid karroid vegetation. Basal, shortly stipitate ovules and a xerochastic, parchment-like capsule are synapomorphies for the Acrosanthoideae. The Eurasian endemic annual, Aizoanthemum hispanicum, is not related to the southern African species of Aizoanthemum and is placed in a new genus, Aizoanthemopsis gen. nov. The southern African genera Galenia and Plinthus are embedded within Aizoon. These genera were separated by differences in the size of their flowers. Since these features are highly homoplasious, we place all three under an enlarged Aizoon, which can be recognized by capsules with reduced expanding tissue as well as leaves and/or stems that are covered with silvery hairs or hair-like or rounded papillae. The Aizooideae now consist of the genera Aizoanthemopsis, Aizoanthemum, Aizoon, Gunniopsis and Tetragonia, with a total of 116 species. Our results also have consequences in the Sesuvioideae, where the generic name Anisostigma is resurrected for Tetragonia schenckii. The two species of Tribulocarpus and the monotypic Anisostigma are sister to the other Sesuvioideae and are characterized by tubular flowers. Since we have synapomorphies for the clade consisting of Anisostigma + Tribulocarpus and for the remainder of the Sesuvioideae (i.e., circumscissile capsules and seeds completely enveloped by an aril), we recognize two tribes, Sesuvieae and Anisostigmateae tr. nov., within the Sesuvioideae. For the expanded concept of Aizoon and for Tetragonia, we propose a new subgeneric classification to reflect the major clades retrieved. In Aizoon, four of the six subgenera are new and for Tetragonia, two of the four subgenera are new. We provide keys to the subfamilies of the Aizoaceae, to the genera and subgenera of the Aizooideae and also to the tribes of the Sesuvioideae. Distribution maps are provided for the Aizooideae, Acrosanthoideae and for the little-known Anisostigma schenckii.

show abstract

“…The seeds are blown short distances by winds or transported over long distances by zoochory [ 10 ]. The diploid set of chromosome numbers of this species was identified as twelve [ 11 ]. The plant is also valued for its essential oils that have been used to treat skin ailments and gastrointestinal disorders in folklore [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Rhanterium eppaposum Oliv. Populations in Kuwait as Revealed by GBS

Salameen

Habibi

Amad

et al. 2022

Plants

View full text Add to dashboard Cite

Natural populations of Rhanterium eppaposum Oliv. (Arfaj), a perennial forage shrub, have depleted due to unethical human interventions and climate change in Kuwait. Therefore, there is an urgent need to conserve this native plant through the assessment of its genetic diversity and population structure. Genotyping by sequencing (GBS) has recently emerged as a powerful tool for the molecular diversity analysis of higher plants without prior knowledge of their genome. This study represents the first effort in using GBS to discover genome-wide single nucleotide polymorphisms (SNPs) of local Rhanterium plants to assess the genetic diversity present in landraces collected from six different locations in Kuwait. The study generated a novel set of 11,231 single nucleotide polymorphisms (SNPs) and indels (insertions and deletions) in 98 genotypes of Rhanterium. The analysis of molecular variance (AMOVA) revealed ~1.5% variation residing among the six populations, ~5% among the individuals within the population and 93% variation present within the populations (FST = 0.029; p = 0.0). Bayesian and UPGMA analyses identified two admixed clusters of the tested samples; however, the principal coordinates analysis returned the complete population as a single group. Mantel’s test returned a very weak correlation coefficient of r2 = 0.101 (p = 0.00) between the geographic and genetic distance. These findings are useful for the native species to formulate conservation strategies for its sustainable management and desert rehabilitation.

show abstract

Chromosome numbers of the Kuwaiti flora, III.

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 6 publications

References 3 publications

Karyotype analysis ofAstragalus effususBunge (Fabaceae)

Karyotype analysis ofAstragalus effususBunge (Fabaceae)

Disentangling the Aizooideae: New generic concepts and a new subfamily in Aizoaceae

Genetic Diversity of Rhanterium eppaposum Oliv. Populations in Kuwait as Revealed by GBS

Contact Info

Product

Resources

About