Garuda - Garba Rujukan Digital

Azar, Sahar

Unknown Affiliation

Author-ID : 7405936

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

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Genome-wide investigation and characterization of heat shock transcription factors in papaya (Carica papaya): Mining of the HSF transcription factor in papaya Le, Thi Man; Azar, Sahar; Thi Thanh Tran, Huyen; Chu, Ha Duc; Vu, Quyen Thi Xuan; Tran, Lan Thi Mai; La, Hong Viet; Le, Chi Toan; Cao, Phi Bang
Journal of Tropical Life Science Vol. 14 No. 3 (2024): In Press
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.02

Heat shock transcription factors (Hsf-s) have been considered one of the major regulatory proteins that play important roles in various biological processes during the growth and development of plants. Unfortunately, no comprehensive studies of the Hsf family in papaya (Carica papaya), a popular tropical fruit crop, have been performed, even the papaya genome assembly has been released recently. In this study, a total of 18 members of the Hsf family, namely CpHsf-s have been identified in papaya. Based on various computational tools, a systematic characterization of the CpHsf family, such as gene structure, physic-chemical features, categorization, and protein-protein interaction, has been conducted. We found that the physic-chemical properties of the CpHsf proteins were highly variable, while all proteins were hydrophilic and localized in the nucleus. Our classification indicated that the CpHsf proteins could be categorized into three groups, including HsfA, HsfB, and HsfC, and members in the same clade share similar gene structure. According to the previous RNA-Seq datasets, our re-analysis revealed that the CpHsf genes exhibited different expressions in various major organs or tissues during fruit ripening and under the ultra-low temperature stress. Taken together, our study could provide a list of candidate genes for further functional characterization towards the improvement of stress tolerance in papaya.

Genome-wide investigation and characterization of heat shock transcription factors in papaya (Carica papaya): Mining of the HSF transcription factor in papaya Le, Thi Man; Azar, Sahar; Thi Thanh Tran, Huyen; Chu, Ha Duc; Vu, Quyen Thi Xuan; Tran, Lan Thi Mai; La, Hong Viet; Le, Chi Toan; Cao, Phi Bang
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.02

Heat shock transcription factors (Hsf-s) have been considered one of the major regulatory proteins that play important roles in various biological processes during the growth and development of plants. Unfortunately, no comprehensive studies of the Hsf family in papaya (Carica papaya), a popular tropical fruit crop, have been performed, even the papaya genome assembly has been released recently. In this study, a total of 18 members of the Hsf family, namely CpHsf-s have been identified in papaya. Based on various computational tools, a systematic characterization of the CpHsf family, such as gene structure, physic-chemical features, categorization, and protein-protein interaction, has been conducted. We found that the physic-chemical properties of the CpHsf proteins were highly variable, while all proteins were hydrophilic and localized in the nucleus. Our classification indicated that the CpHsf proteins could be categorized into three groups, including HsfA, HsfB, and HsfC, and members in the same clade share similar gene structure. According to the previous RNA-Seq datasets, our re-analysis revealed that the CpHsf genes exhibited different expressions in various major organs or tissues during fruit ripening and under the ultra-low temperature stress. Taken together, our study could provide a list of candidate genes for further functional characterization towards the improvement of stress tolerance in papaya.

Genome-Scale Screening, Characterization, and Expression Analysis of Grain Amaranth Small Auxin-Up RNA Gene Family in Response to Drought Stress Vu, Xuan Duong; Azar, Sahar; Chu, Ha Duc; Le, Quynh Thi Ngoc; Nguyen, Quy Phuong; Nguyen, Thanh Xuan; Nguyen, Dinh Van
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.518-528

The Small Auxin-Up RNA (SAUR) gene family represents a class of early auxin-responsive genes that are widely involved in regulating plant cell elongation, tissue differentiation, and environmental adaptation. In this study, we performed a genome-wide analysis of the SAUR gene family in grain amaranth (Amaranthus hypochondriacus), a nutrient-rich pseudocereal. A total of 80 SAUR genes were identified based on the conserved PF02519 domain and were systematically characterized in terms of protein properties, gene structure, and phylogenetic relationships. Most SAUR genes in grain amaranth encode small, basic, and hydrophilic proteins, and gene structure analysis revealed that the majority are intronless. Phylogenetic analysis grouped AhSAURs into ten clades alongside Arabidopsis SAURs. Transcriptomic profiling across seven tissues and drought-treated samples showed that although many SAUR genes had low or no expression, several genes, including AhSAUR76, AhSAUR71, AhSAUR65, AhSAUR54, and AhSAUR73, were highly expressed in a tissue-preferential manner and showed responsiveness to drought. These findings highlight the potential regulatory roles of selected SAUR genes in growth and stress adaptation, offering a valuable resource for future genetic and functional studies aimed at enhancing agronomic traits in grain amaranth.

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