TAILIEUCHUNG - Comparative morphological and cytogenetic study of five Asparagus (Asparagaceae) species from Algeria including the endemic A. altissimus Munby

Forty wild populations belonging to five Asparagus species including the endemic A. altissimus were sampled in an eastwest bioclimatic gradient of North Algeria. More than 250 individuals were taxonomically examined and karyologically investigated. | Turkish Journal of Botany Turk J Bot (2017) 41: 588-599 © TÜBİTAK doi: Research Article Comparative morphological and cytogenetic study of five Asparagus (Asparagaceae) species from Algeria including the endemic A. altissimus Munby 1,2 1 1, Kenza BOUBETRA , Nabila AMIROUCHE , Rachid AMIROUCHE * Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria 2 National Institute of Forest Research, Cheraga, Algiers, Algeria 1 Received: Accepted/Published Online: Final Version: Abstract: Forty wild populations belonging to five Asparagus species including the endemic A. altissimus were sampled in an eastwest bioclimatic gradient of North Algeria. More than 250 individuals were taxonomically examined and karyologically investigated. Meiotic behavior was analyzed for each species. New chromosome numbers were consistent with the base number x = 10 for the genus Asparagus, and two cytotypes, diploid and hexaploid, were observed. Four species were found to have 2n = 20 chromosomes, highlighting the prominence of diploidy in North Africa. One polyploid with 2n = 60 is reported here as the first karyological information on the endemic A. altissimus. Karyotype parameters were established and compared for diploid species. New data provided for A. acutifolius and A. albus indicate differences in the number of submetacentric chromosomes and genome size estimated by total chromosome length. A. acutifolius is distinguished by the largest genome, the smallest being that of A. horridus. The hexaploid cytotype consists of very small metacentric chromosomes. All diploid species displayed regular meiotic behavior with mostly bivalent pairing. Abnormalities, including univalents, multivalents, laggards, and bridges, were sometimes observed in A. horridus and A. officinalis. The new cytogenetic information provided in this study is discussed in

• Nông nghiệp
• Comparative morphological
• Asparagus species including
• Endemic A
• altissimus
• Bioclimatic gradient of North Algeria
• Karyologically investigated
• Tezpur litchi
• Canopy spread
• Comparative morphological study
• Varieties at litchi garden
• Fruit morphological characters
• Hymenocrater bituminosus Fisch
• Genus Hymenocrater Fisch
• H
• bituminosus in Turkey
• Sedum album L
• Genus Stachys L
• S
• yildirimlii
• Micromorphological features
• Trichome morphology
• Comparative gross morphological studies
• Os coxae of flamingo
• Great Indian horned owl
• Bones namely ilium
• Post acetabular parts
• Common hawk cukoo
• Yellow billed babbler
• Comparative morphological study of os coxae
• Synsacrum bones
• CMS Seed cotton yield
• Standard check
• Standard heterosis
• CMS based hybrids of upland cotton
• Comparative study of heterosis
• Seed cotton yield
• BMC Plant Biology
• Glycine max
• Stearic acid
• Fatty acid composition
• Radiation mutagenesis
• Comparative genome hybridization
• BMC Genomics
• Chloroplast genome
• Codon usage
• Sequence divergence
• Cytoplasmic organelle
• Morphological variability
• Myxopyrum smilacifolium
• Including polysaccharides
• Antioxidant capacity
• Solvent concentration
• Comparative morphological method
• Abies koreana
• Clinal variation
• Cross section
• Resin duct
• Morphological characteristics
• Ecological adaptation
• Pinus resin duct
• Stomatal density
• Stomatal index
• Potential conductance index
• Pectoral girdle
• Cukoo (hierococcyx varius)
• Pectoral limb bones
• Ornamental purposes
• Insufficient diagnostic morphological
• Frequent natural hybridization
• DNA markers
• Non redundant protein coding genes
• Cynodon dactylon
• Plant architecture
• Turfgrass species
• Morphological variance
• ADP glucose pyrophosphorylase
• Journal of Agriculture and Forestry
• Antioxidant enzyme
• Deficit irrigation
• Abiotic stress factor
• Relative water content
• Tạp chí khoa học
• Taxonomic status of pseudoberylmys muongbangensis
• Species and genus
• Don La province
• Pseudo new species
• Validate a taxonomical status
• Perform comparative morphological