Reproductive Biology, Botany, and Taxonomical Description of Dalbergia sissoo

Ijaz, Siddra; Haq, Imran Ul; Babar, Maria

doi:10.1201/9781003175940-2

Cited by 3 publications

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“…Dalbergia sissoo (Shisham) is a member of the eukaryotic kingdom Plantae, phylum Spermatophyta, subphylum Angiospermae, class Dicotyledonae, order Fabales, family Fabaceae, subfamily Faboideae, and genus Dalbergia ( Ijaz et al, 2021a ). It is a moisture-loving, fast-growing, medium-to large-sized deciduous tree that grows best on alluvial soils at a pH between 5.0 and 7.7 ( Kumar and Khurana, 2016 ; Ijaz et al, 2021b ). It is one of the trees with the greatest economic value in forestry, agroforestry, and horticulture ( Ijaz et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Phylogenomics resolves the etiology of dieback disease and deciphers Ceratocystis dalbergicans sp.nov., causal agent of Dalbergia sissoo decline

Haq

Ijaz²,

Latif³

et al. 2023

Front. Genet.

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Dalbergia sissoo is one of the most economically important trees in forestry, agroforestry, and horticulture. This tree species is severely threatened by dieback. Widespread dieback outbreaks and infestations have drastically destroyed billions of D. sissoo trees. Hence, we attempted to resolve the dieback etiology through phylogenomics associated with D. sissoo mortality. The Ceratocystis species was evaluated using morphologically investigated fungal isolates collected from dieback-affected tissue plants. Based on the symptomatology, we have differentiated dieback from Fusarium wilt and concluded that the Ceratocystis fimbriata sensu lato complex is causing shisham dieback in Pakistan. As the Ceratocystis species complex is a cryptic species complex, we used genomics and phylogenetic analysis for deciphering its evolutionary hierarchical order. The pathogen’s operational taxonomy was unlocked with the help of phylogenomics, and it was discovered that isolates from D. sissoo represent a species distinct from the other species in the C. fimbriata sensu lato species complex. The name Ceratocystis dalbergicans sp. nov. has been given to the fungus causing dieback disease in D. sissoo.

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Section: Introductionmentioning

confidence: 99%

Phylogenomics resolves the etiology of dieback disease and deciphers Ceratocystis dalbergicans sp.nov., causal agent of Dalbergia sissoo decline

Haq

Ijaz²,

Latif³

et al. 2023

Front. Genet.

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“…Shisham decline (dieback) was first reported in India and Bangladesh, and in 1998 it was declared an epidemic in Pakistan. Different phytopathogens are reported for their involvement in this disease ( Ijaz et al., 2018 ; Ijaz and Haq, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

In silico structural-functional characterization of three differentially expressed resistance gene analogs identified in Dalbergia sissoo against dieback disease reveals their role in immune response regulation

Ijaz,

Ul Haq,

Razzaq

et al. 2023

Front. Plant Sci.

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Plant immunity includes enemy recognition, signal transduction, and defensive response against pathogens. We experimented to identify the genes that contribute resistance against dieback disease to Dalbergia sissoo, an economically important timber tree. In this study, we investigated the role of three differentially expressed genes identified in the dieback-induced transcriptome in Dalbergia sissoo. The transcriptome was probed using DOP-rtPCR analysis. The identified RGAs were characterized in silico as the contributors of disease resistance that switch on under dieback stress. Their predicted fingerprints revealed involvement in stress response. Ds-DbRCaG-02-Rga.a, Ds-DbRCaG-04-Rga.b, and Ds-DbRCaG-06-Rga.c showed structural homology with the Transthyretin-52 domain, EAL associated YkuI_C domain, and Src homology-3 domain respectively, which are the attributes of signaling proteins possessing a role in regulating immune responses in plants. Based on in-silico structural and functional characterization, they were predicted to have a role in immune response regulation in D. sissoo.

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“…Shisham is widely distributed in the Indian subcontinent [ 1 ], Nepal, Pakistan, Bangladesh, and other countries, and was first introduced to Yunnan, China in 1999 [ 2 , 3 , 4 ]. Shisham, an Indian variety, is basically the same as Dalbergia odorifera in heartwood color, texture, and other aspects [ 5 , 6 ]. Its yellowish-brown wood is hard and resistant to cracking, with an aromatic smell.…”

Section: Introductionmentioning

confidence: 99%

Metabonomics Analysis of Stem Extracts from Dalbergia sissoo

Liu

Wang

et al. 2022

Molecules

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Dalbergia sissoo is a woody plant with economic and medicinal value. As the pharmacological qualities and properties of the wood from this plant primarily depend on its extractives, in this study, the metabolomic analysis of extractives from its stems was carried out using UPLC-MS/MS. A total of 735 metabolites were detected from two groups of samples, heartwood and sapwood, with the largest number of terpenoids in type and the largest number of flavonoids in quantity. The PCA and cluster analysis showed significant differences in the metabolite composition between the two groups. The differential metabolites were mainly organic oxygen compounds, flavonoids, and isoflavones. Among the 105 differential metabolites, 26 metabolites were significantly higher in relative content in sapwood than in heartwood, while the other 79 metabolites were significantly higher in relative content in heartwood than in sapwood. KEGG metabolic pathway enrichment analysis showed that these differential metabolites were mainly enriched in three metabolic pathways: Flavonoid biosynthesis, isoflavonoid biosynthesis, and flavonoid and flavonol biosynthesis. This study provides a reference for metabolomics studies in Dalbergia and other woody plants.

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Reproductive Biology, Botany, and Taxonomical Description of Dalbergia sissoo

Cited by 3 publications

References 0 publications

Phylogenomics resolves the etiology of dieback disease and deciphers Ceratocystis dalbergicans sp.nov., causal agent of Dalbergia sissoo decline

Phylogenomics resolves the etiology of dieback disease and deciphers Ceratocystis dalbergicans sp.nov., causal agent of Dalbergia sissoo decline

In silico structural-functional characterization of three differentially expressed resistance gene analogs identified in Dalbergia sissoo against dieback disease reveals their role in immune response regulation

Metabonomics Analysis of Stem Extracts from Dalbergia sissoo

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