PMID- 38173930
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240105
IS  - 1664-462X (Print)
IS  - 1664-462X (Electronic)
IS  - 1664-462X (Linking)
VI  - 14
DP  - 2023
TI  - Chromosomal dynamics in Senna: comparative PLOP-FISH analysis of tandem repeats 
      and flow cytometric nuclear genome size estimations.
PG  - 1288220
LID - 10.3389/fpls.2023.1288220 [doi]
LID - 1288220
AB  - INTRODUCTION: Tandem repeats (TRs) occur abundantly in plant genomes. They play 
      essential roles that affect genome organization and evolution by inducing or 
      generating chromosomal rearrangements such as duplications, deletions, 
      inversions, and translocations. These impact gene expression and chromosome 
      structure and even contribute to the emergence of new species. METHOD: We 
      investigated the effects of TRs on speciation in Senna genus by performing a 
      comparative analysis using fluorescence in situ hybridization (FISH) with S. 
      tora-specific TR probes. We examined the chromosomal distribution of these TRs 
      and compared the genome sizes of seven Senna species (estimated using flow 
      cytometry) to better understand their evolutionary relationships. RESULTS: Two 
      (StoTR03_159 and StoTR04_55) of the nine studied TRs were not detected in any of 
      the seven Senna species, whereas the remaining seven were found in all or some 
      species with patterns that were similar to or contrasted with those of S. tora. 
      Of these studies species, only S. angulata showed significant genome 
      rearrangements and dysploid karyotypes resembling those of S. tora. The genome 
      sizes varied among these species and did not positively correlate with chromosome 
      number. Notably, S. angulata had the fewest chromosomes (2n = 22) but a 
      relatively large genome size. DISCUSSION: These findings reveal the dynamics of 
      TRs and provide a cytogenetic depiction of chromosomal rearrangements during 
      speciation in Senna. To further elucidate the dynamics of repeat sequences in 
      Senna, future studies must include related species and extensive repeatomic 
      studies, including those on transposable elements.
CI  - Copyright (c) 2023 Nguyen, Kang and Kim.
FAU - Nguyen, Thi Hong
AU  - Nguyen TH
AD  - Chromosome Research Institute, Department of Chemistry & Life Science, Sahmyook 
      University, Seoul, Republic of Korea.
FAU - Kang, Byung Yong
AU  - Kang BY
AD  - Chromosome Research Institute, Department of Chemistry & Life Science, Sahmyook 
      University, Seoul, Republic of Korea.
FAU - Kim, Hyun Hee
AU  - Kim HH
AD  - Chromosome Research Institute, Department of Chemistry & Life Science, Sahmyook 
      University, Seoul, Republic of Korea.
LA  - eng
PT  - Journal Article
DEP - 20231214
PL  - Switzerland
TA  - Front Plant Sci
JT  - Frontiers in plant science
JID - 101568200
PMC - PMC10762312
OTO - NOTNLM
OT  - FISH
OT  - Senna
OT  - chromosomal rearrangement
OT  - genome dynamic
OT  - tandem repeat
COIS- The authors declare that the research was conducted in the absence of any 
      commercial or financial relationships that could be construed as a potential 
      conflict of interest.
EDAT- 2024/01/04 11:44
MHDA- 2024/01/04 11:45
PMCR- 2023/01/01
CRDT- 2024/01/04 04:12
PHST- 2023/09/05 00:00 [received]
PHST- 2023/11/08 00:00 [accepted]
PHST- 2024/01/04 11:45 [medline]
PHST- 2024/01/04 11:44 [pubmed]
PHST- 2024/01/04 04:12 [entrez]
PHST- 2023/01/01 00:00 [pmc-release]
AID - 10.3389/fpls.2023.1288220 [doi]
PST - epublish
SO  - Front Plant Sci. 2023 Dec 14;14:1288220. doi: 10.3389/fpls.2023.1288220. 
      eCollection 2023.