Analysis of the interactions between physiological substances and endogenous hormones in Bombax ceiba bud differentiation

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

2 Abstract Plant bud differentiation is a process of transition from nutrient growth to reproductive growth, which important for improving crop yield, breeding good seeds and regulation flowering time. To elucidate the morpho-physiological changes during in Bombax ceiba , this study was conducted Haikou City, Hainan Province, employing paraffin sectioning, plant physiological assays, LC-MS. We aimed determine dynamic occurring process. The results showed that 1) firstly, transformation point flower called floral primordial development, secondly, organ mature.2) content soluble sugar starch early-flowering late-flowering first increased then decreased, sucrose, protein malondialdehyde decreased increased. chlorophyll gradually b carotenoids while opposite true .3) 5Ds, CK Auxin mainly acted stage I II, ABA, SA, GA, ETH, JA II III.4) Soluble IAA\CK, sucrose\malondialdehyde IAA\CK\JA, IAA\CK\GA were significantly positively correlated, IAA\CK\SA negatively with existence synergistic antagonistic effects co-regulating differentiation.This provides theoretical basis exploring mechanism formation production practice. 3 Summary statement investigate morphological characteristics reveal mechanisms substances hormone interactions.

Language: Английский

---

TropiCODB: a multi-omics resource for supporting biodesign in tropical crops

BioDesign Research, Journal Year: 2025, Volume and Issue: unknown, P. 100003 - 100003

Published: Feb. 1, 2025

Language: Английский

---

Upgraded durian genome reveals the role of chromosome reshuffling during ancestral karyotype evolution, lignin biosynthesis regulation, and stress tolerance

Science China Life Sciences, Journal Year: 2024, Volume and Issue: 67(6), P. 1266 - 1279

Published: May 17, 2024

Language: Английский

---

Chromosome-level baobab genome illuminates its evolutionary trajectory and environmental adaptation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 12, 2024

Abstract Baobab ( Adansonia digitata ) is a long-lived tree endemic to Africa with economic, ecological, and cultural importance, yet its genomic features are underexplored. Here, we report chromosome-level reference genome anchored 42 chromosomes for A. , alongside draft assemblies sibling tree, two trees from distinct locations in Africa, za Madagascar. The baobab uniquely rich DNA transposons, which make up 33%, while LTR retrotransposons account 10%. experienced whole multiplication (WGM) around 30 million years ago (MYA), followed by second WGM event 3–11 MYA, likely linked autotetraploidy. Resequencing of 25 identify three subpopulations, gene flow across West East Africa. Gene enrichment fixation index Fst analyses show retained multiple circadian, flowering, light-responsive genes, support longevity through the UV RESISTANCE LOCUS 8 (UVR8) pathway. In sum, provide resources insights breeding conservation.

Language: Английский

---

Comparative genomics and phylogenetic analysis of six Malvaceae species based on chloroplast genomes

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Dec. 26, 2024

Abstract The Malvaceae family, comprising 9 subfamilies and 4,225 species, includes economically significant taxa, such as Ceiba pentandra , Gossypium ekmanianum stephensii Kokia drynarioides Talipariti hamabo Durio zibethinus . Chloroplast (cp) genome research is crucial for elucidating the evolutionary divergence species identification within this family. In study, we assembled annotated cp genomes of six conducting comprehensive comparative genomic phylogenomic analyses. range from 160,495 to 163,970 bp in size, with 125–129 genes annotated. Notable differences were observed IR (inverted repeat) regions, SSR analysis revealed that has highest number specific variation sites. Among uniquely exhibits more palindromic repeats than forward repeats. Seven highly mutated regions identified, offering potential markers identification. Phylogenetic reconstruction using maximum likelihood method two primary clades Malvaceae: Byttneriina Malvadendrina. Within Malvadendrina, subfamily Helicteroideae represents earliest divergence, followed by Sterculioideae. This study provides a robust phylogenetic framework valuable insights into classification history species.

Language: Английский

---

High-quality genome of Firmiana hainanensis provides insights into the evolution of Malvaceae subfamilies and the mechanism of their wood density formation

Journal of genetics and genomics/Journal of Genetics and Genomics, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

---