Variability of metric and qualitative traits of Nitraria species in relation to ecological and climatic conditions of Siberian habitats

Identification of species in the genus Nitraria L. (Nitrariaceae) based on nucleotide variability of nuclear ribosomal DNA

“…For example, the average p-distance value calculated for ITS data set Dendrobium species and sections ranged from 0.069 to 0.112 (Srikulnath et al, 2015). Interspecific differences in the complex of phenolic compounds were also identified for N. sibirica and N. schoberi (Banaev et al, 2015) and species specificity of metric and qualitative morphological features was shown (Banaev et al, 2017).…”

“…The taxonomy of siberian Nitraria species has already been tried using karyological (Muratova et al, 2013;Banaev et al, 2018), phytochemical (Banaev et al, 2015) and morphological (Banaev et al, 2017) methods, however, molecular markers have a number of undeniable advantages over them, demonstrating significant differences at the genetic level without the involvement of environmental factors. Although sequencing of DNA fragments is still an expensive method of analysis, it can be provided accurate and highly informative data on the variability of genomes.…”

Using the ITS2 transcribed spacer of nuclear ribosomal DNA to identify species of the genus Nitraria

“…schobеri is characterized by larger bushes -150-170 cm; leaves -15-30 mm long and 5.7-8.8 mm wide; seeds -up to 10 mm long; wider corolla petals -near 2.5 mm, and larger (1.2-1.5 times) anthers. The bush height of N. sibiricа does not exceed 80 cm, the length of the leaf blade varies from 8 to 15 mm; the seed length is 3.7-7.4 mm; the petal length is slightly more than 3.5 mm; the anthers -0.5-1 mm [7].…”

“…These species cannot always be distinguished; the herbarium specimen identification is difficult [4][5]. Attempts to resolve the taxonomy of Siberian species of the genus Nitrаria have been made based on karyological [6], morphological [7] characters, but molecular markers have several advantages over them, demonstrating significant differences at the genetic level without environmental factor participation. The work objective is a comparative analysis of the nucleotide variability of the ITS2 region and identification of its significance in the taxonomy of the genus Nitrаria species.…”

Nitraria komarovii Iljin & Lava ex Bobrov (Nitrariaceae), a new record for the flora of Kazakhstan

“…The genus Nitraria L. (Nitrariaceae) comprises of about 10 species and is distributed mainly in the steppe and desert regions of Central Asia, Southeast Europe, North Africa, and Australia (Bobrov 1965;Banaev et al 2015Banaev et al , 2017. The genus is considered to be a relic of the Paleogene desert-steppe flora and has its center of diversity in Central Asia (Bobrov 1946;Zhang et al 2015).…”