Traditional rice landraces of coastal areas in Bangladesh are distinct in respect to their phenotypes, responses to salt stress and yield attributes. In characterization of coastal rice landraces, 46 rice genotypes were tested for salt tolerance at their seedling and reproductive growth stages. Through the cluster analysis following standard evaluation score (SES), genotypes were divided into five categories (highly susceptible, susceptible, moderately tolerant, tolerant and highly tolerant) at their seedling stage. Three coastal genotypes, viz. chorbindi, joyni and kedgrangal mota, were grouped as highly saline tolerant at their seedling stage. In studying reproductive stage salinity screening, based on mean score values obtained from different morphological and yield parameters (plant height, number of effective tillers/hill, number of filled grains, panicle length, 100-grain weight, and straw dry weight), kutiakon and kajolshail were identified as the salinity tolerant landraces while tulsimala, dudhkalom, birindi, bushihara, lalmota, chorboleshor, lalchikon and bashful chikon were found as moderately tolerant to salinity. Finally, the molecular characterization using two simple sequence repeat (SSR) markers, viz., RM493 and RM3412 revealed holde mota, dingamoni, kedgrangal mota, sada mota, laxmima, dishari, lal chikon, kalijira, kalo khaya, khaioz, chorbindi, kajolshail, kutiakon, bamonkhir, dudhmora, sakhorkhora, mota dhan, and sorbimaloti as tolerant landraces. These identified salt-tolerant landraces can be used as promising germplasm resources for breeding salt-tolerant high-yielding rice varieties in the future.

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• Diversity Analysis of Bangladeshi Coastal Rice Landraces (Oryza sativa) for Morpho-Physiological and Molecular Markers' Responses to Seedling Salinity Tolerance
  Hafsa Sultana, Uzzal Somaddar, Swadesh Chandra Samanta, Abul Kashem Chowdhury, Gopal Saha
  Plant Breeding and Biotechnology.2022; 10(2): 115.     CrossRef

Molecular genetic studies of self-incompatibility (SI) are the most accentuating part in the way of advancement of reproductive mechanisms in flowering plants. In the Brassicaceae plants, self-incompatibility has been mapped genetically to a single chromosomal location where several closely linked genes have been identified. Recently, various studies have provided a novel insight into the basis of specificity in the S-receptor kinase (SRK) and S-locus protein 11 or S-locus Cysteine-rich (SP11/SCR) interaction, the nature of the signaling cascade that culminates in the inhibition of ‘self’ pollen, and the physiological and morphological changes that are associated with transitions between the outbreeding and inbreeding modes of mating in the Brassicaceae. In this review, we discuss the current view of the molecular genetic aspects of the self-incompatibility in Brassicaceae.

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• Genetics Behind Sexual Incompatibility in Plants: How Much We Know and What More to Uncover?
  Sukanya Chakraborty, Smritikana Dutta, Malay Das
  Journal of Plant Growth Regulation.2023; 42(11): 7164.     CrossRef
• Assessment of genotypic variation and self-incompatibility in cauliflower (Brassica oleracea var. botrytis) genotypes
  
  International Journal of Biosciences (IJB).2020; : 173.     CrossRef
• Progress on deciphering the molecular aspects of cell-to-cell communication in Brassica self-incompatibility response
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  3 Biotech.2018;[Epub]     CrossRef

Cabbage (Brassica oleracea) is a very important vegetable worldwide and biotic stress is a crucial issue for this crop. Enhancement of resistance by exploiting stress resistance-related genes offers the most efficient approach to address this issue. Among the stress resistance-related genes, thaumatin-like proteins (TLPs) play a vital role in enhancement of resistance against stresses. In this study, we identified 12 TLPs from B. oleracea genomic DNA sequencing database, analyzed their sequences and compared with other published pathogenesis-related TLPs, and found a high degree of homology with them. In addition, these genes showed an organ-specific expression, three of which expressed differentially after Pectobacterium carotovorum subsp. carotovorum infection in cabbage plants. Data obtained in this study suggest the probable involvement of TLPs in resistance against soft rot disease of Brassica.

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  Journal of Natural Pesticide Research.2024; 10: 100097.     CrossRef
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  Frontiers in Genetics.2021;[Epub]     CrossRef
• Genome-wide analysis and evolution of plant thaumatin-like proteins: a focus on the origin and diversification of osmotins
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  Molecular Genetics and Genomics.2019; 294(5): 1137.     CrossRef
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