Kazi Nahida Begum

• PhD, Post-doc
• Professor at Jagannath University

Karyotypes of two Colocasia oresbia botanical varieties from Bangladesh were analyzed and compared with orcein, chromomycin A 3 (CMA) and 4´-6 diamidino-2-phenylindole (DAPI). Both varieties had 2n= 2 x = 26 chromosomes (karyotypic formula: 20m+ 6sm) and a pair of satellites each. Total chromosome length was 144.18 ± 2.45 μm in C. oresbia var. ores...

Brassica L. is an agronomical and economical important crop belonging to Brassicaceae family. The research was conducted to interrelate interphase nuclei and prophase chromosome of Brassica L. varieties. In the current analysis, the nature of interphase nuclei and prophase chromosome of twelve BARI varieties of Brassica L. was investigated based on...

In the present research, karyomorphological characters of twelve varieties of Brassica, released by Bangladesh Agricultural Research Institute (BARI) were investigated for appropriate characterization and assuming interrelations among them. Among these, six varieties of Brassica campestris (Tori-7, SS-75, BS-6, BS-12, BS-14 and BS-15) showed 2n=20...

Brassica L. is one of the major agronomical valued genus with divergent oilseed crops and vegetables; belonging to the Brassicaceae family. The aim of the present analysis is to assess the pollen morphology of Brassica L. varieties viz. Tori-7, BARI Sarisha-6, BARI Sarisha-7, BARI Sarisha-10, BARI Sarisha-12 and BARI Sarisha-15 from Bangladesh by u...

The present study offers the taxonomy, karyomorphology, and pollen-pistil interactions in the bulbous species Hymenocallis littoralis (Jacq.) Salisb. of the family Amaryllidaceae. The genus Hymenocallis is closely allied to Pancratium, however, differs from the later by filament, number and shape of ovule, and seed characteristics. Detailed descrip...

Meiotic study revealed the presence of B chromosomes in two species of Trigonella L. Meiotic abnormalities, pollen fertility, and chiasma frequency were taken into consideration to investigate the effects of B chromosomes. Several meiotic abnormalities were observed as a consequence of chromatin stickiness and abnormal spindle activity such as asyn...

The allotetraploid wild rice, Oryza coarctata grows in sea water and is the only halophyte which sets rice-like grains. It is a unique genetic resource for introducing salt tolerance into elite rice cultivars of Oryza sativa. Hybridization between these two remains unsuccessful. Our aim was to induce tetraploidization in the traditional Latisail cu...

Three edible species of Allium, namely, A. sativum, A. cepa and A. tuberosum were cytogenetically investigated to highlight the chromosomal variations among them. These three species of Allium revealed two different numbers of chromosomes with divergent karyotype formula i.e. 2n = 16 = 12m + 4sm in A. sativum, 2n = 16 = 14m + 2sm in A. cepa and 2n...

Morphological traits and nature of heterochromatins in interphase nuclei and prophase chromosomes of three oilseed species of Brassica L. (B. campestris, B. juncea, and B. napus) have been investigated in this study for morpho-cytotaxonomical evaluation. The three Brassica species displayed morphologically differences in the case of plant heights,...

Tenualosa ilisha (Hamilton, 1822), commonly known as Hilsha shad is a valuable and highly acceptable species in terms of their high flavored properties. Hilsha shad has striking morpho-genetical adaptation to heterogeneous habitats across their migratory routes. Cytogenetic analysis demonstrates the changes in chromosomes. But none was focused on t...

An experiment was conducted to observe some biological aspects including growth, sex ratio, gonadal maturity, artificial insemination, fecundity, fertilization, hatching and larval development of O. pabda in a private hatchery. Total weight of the sampled fish varied from 1.60±0.43 to 111.12±6.83 g and length varied from 3.57±0.65 to 21.22±1.84 cm...

Costus spicatus (Jacq.) Sw. is a species of Costaceae (Zingiberaceae) family, which is most familiar as a medicinal plant because of its therapeutic values. A detailed karyological analysis has been accomplished through aceto-orcein staining, chromosome number was reported 2n=18 along with the presence of one B-chromosome, which exhibited with a ka...

Bangladesh Agricultural Research Institute (BARI) released seven variants of Allium L. such as BARI piaz-1, BARI piaz-2, BARI piaz-3, BARI piaz-4, BARI piaz-5, BARI patapiaz-1 and BARI chive-1 were analyzed to know the mitotic nature of interphase nuclei and prophase chromosome by using aceto-orcein staining. All the Allium variants of the analysis...

Brassica L. is the most agronomical important genus of Brassicaceae family. An electrophoretic exploration was conveyed for proper identification of genetically diverse and agronomically superior genotypes and pursuing the extent of genetic divergence and phylogenetic relationship within the thirteen variants of Brassica for leaf storage protein by...

Staining property of interphase nuclei and prophase chromosomes, diploid chromosome number, total chromosome length (TCL), symmetric and asymmetric indices of karyotype were studied in eight maize varieties released by BARI. 2n = 20 chromosomes were found in Barnali, Mohor, Khoi Vhutta, BS-1, B-5 and BM-7 whereas 2n = 22 chromosomes in China and 2n...

Many previous studies have been reported on somatic chromosome numbers but there is no previous report on cytogenetical analysis of BARI released garlic germplasms.Based on the staining nature of interphase nuclei and prophase chromosomes the germplasms were differentiated into ‘Diffuse Type’ and ‘Continuous Type’. All germplasms had 2n = 2x = 16 c...

Brassica campestris var. Agrani, B. juncea var. BARI Sharisha-16 (BS-16) and B. napus var. BARI Sharisha-13 (BS-13) are the three different oilseed crops belonging to the genus Brassica, have been investigated to amass genetic information through cytogenetic characterization by orcein staining and to unveil phylogenetic relationships among these th...

Two floral types of Catharanthus roseus L. viz. pink and white were studied through differential staining with orcein, CMA and DAPI for cytogenetical characterization and to assist towards updating their taxonomical status and evaluating chromosomal diversity between them. "Simple Chromocenter Type" of interphase nuclei was observed with some darkl...

In the present study, micromorphology and comparative anatomy of young root, stem and leaf of three economically important taxa of Brassica L. viz., B. rapa L. subsp. campestris (L.) Clapham, B. juncea (L.) Czern. and B. napus L. are investigated in detail for the first time in Bangladesh by using light microscopy (LM). In anatomical studies, cross...

Nine varieties (BARI Chola-1 to BC-9) of chickpea (Cicer arietinum L.) were studied with respect to isozymes, SDS-PAGE, amplified DNA produced by RAPD- and SSR-markers. The varieties could be characterized by SDS-PAGE bands on the basis of their location, size and intensity. Three isozyme systems, namely acid phosphatase, esterase and peroxidase we...

Three Asparagus species viz. A. racemosus Willd., A. officinalis L., and A. setaceus (Kunth) Jessop were investigated by cytogenetical and molecular analysis for authentic characterization. The diploid chromosome number 2n=20 was found in A. racemosus and A. setaceus, while, A. officinalis possesses 2n=22 chromosomes. Diploid chromosome number 2n=2...

Four specimens of Gynura nepalensis DC. were investigated for authentic characterization by differential cytogenetical and PCR based molecular analysis. Three specimens out of four were collected from different localities of Bangladesh viz. i) from Netrokona district (specimen A), ii) from Dhaka district (specimen B) and iii) from Bogra district (s...

Four varieties of Allium cepa L. viz., BARI Piaz-1, BARI Piaz-3, BARI Piaz-4 and BARI Piaz-5 and a species of Allium, namely A. fistulosum L. were cytogenetically studied. In addition, DNA fingerprinting by using RAPD was also carried out to make phylogenetic dendrogram. The chromatins were homogeneously distributed in the interphase nuclei and pro...

Five tomato varieties (Lycopersicon esculentum Mill.) viz. Apurba, Shila, Lalima, BARI tomato-14 and BARI tomato-15 released from Bangladesh Agricultural Research Institute (BARI) were investigated in this study for cytogenetical characterization. The interphase nuclei and prophase chromosomes of these varieties showed different types of orcein-sta...

Nine varieties of Cicer arietinum L. (chickpea) released by Bangladesh Agriculture Research Institute (BARI), viz. BC-1 (BARI Chola-1), BC-2, BC-3, BC-4, BC-5, BC-6, BC-7, BC-8 and BC-9, represented a broad spectrum of variation for several phenotypic and agronomic traits. For authentic characterization, these varieties were investigated cytogeneti...

Karyomorphological study of nine varieties of Cicer arietinum L. (chickpea) released from BARI was investigated. The nine varieties have 2n = 16 metacentric chromosomes revealing symmetrical karyotype. The first pair of chromosome in each variety has satellites on short arms. Nine varieties showed more or less similar karyotypes, differed in respec...

The 3 forms of Colocasia fallax Schott. complex, namely green petiole form, light purple petiole form and deep purple petiole form, available in Bangladesh were studied cytogenetically to confirm their taxonomic status after staining with orcein and CMA. The green petiole form and the deep purple petiole form were found to possess 2n=28 chromosomes...