Many chloroplast genes of cyanobacterial origin have been transferred to the nucleus during evolution and their products are re-addressed to chloroplasts. The RPL21 gene encoding the plastid r-protein L21 has been lost in higher plant chloroplast genomes after the divergence from bryophytes. Based on phylogenetic analysis and intron conservation, we now provide evidence that in Arabidopsis a nuclear RPL21c gene of mitochondrial origin has replaced the chloroplast gene. The control of expression of this gene has been adapted to the needs of chloroplast development by the acquisition of plastid-specific regulatory promoter cis-elements.
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http://dx.doi.org/10.1016/s0378-1119(01)00613-8 | DOI Listing |
Extracell Vesicle
December 2024
The Jared Grantham Kidney Institute at the University of Kansas Medical Center, Department of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, KS 66160, USA.
Autosomal dominant polycystic kidney (ADPKD) disease is the commonest genetic cause of kidney failure (affecting 1:800 individuals) and is due to heterozygous germline mutations in either of two genes, and . Homozygous germline mutations in are responsible for autosomal recessive polycystic kidney (ARPKD) disease a rare (1:20,000) but severe neonatal disease. The products of these three genes, (polycystin-1 (PC1 4302(3)aa)), (polycystin-2 (PC2 968aa)) and (fibrocystin (4074aa)) are all present on extracellular vesicles (EVs) termed, PKD-exosome-like vesicles (PKD-ELVs).
View Article and Find Full Text PDFOpen Life Sci
January 2025
Oral Implantology Department, Suzhou Stomatological Hospital, Suzhou 215005, China.
Dental pulp stem cells hold significant prospects for tooth regeneration and repair. However, a comprehensive understanding of the molecular differences between dental pulp stem cells (DPSC, from permanent teeth) and stem cells from human exfoliated deciduous teeth (SHED, from deciduous teeth) remains elusive, which is crucial for optimizing their therapeutic potential. To address this gap, we employed a novel data-independent acquisition (DIA) proteomics approach to compare the protein expression profiles of DPSC and SHED.
View Article and Find Full Text PDFJ Mammal
February 2025
Center for Nature and Society, School of Life Sciences, Peking University, Beijing 100871, China.
In 2018, an adult male of a small-sized Tube-nosed Bat (Chiroptera: Vespertilionidae: ) was captured at an arid cave located on the Qinghai-Tibet Plateau in Yushu City, Qinghai Province, China. Despite external morphological similarities with those of and , the individual in question displays explicit craniodental differences that distinguish it from either species. Morphological and morphometric evidence, coupled with phylogenetic analyses utilizing the mitochondrial gene, confirmed that it represents a distinct and still unknown species of , described herewith as sp.
View Article and Find Full Text PDFMitochondrial DNA B Resour
January 2025
School of Ecology and Environmental Science, Yunnan University, Kunming, China.
is a plant distributed at meadow or wetland. Our study reports the complete chloroplast genome. The chloroplast genome of is a typical tetrameric structure with a total length of 159,843 bp, containing a large single-copy (LSC) region of 84,350 bp, a small single-copy (SSC) region of 13,151 bp, and two inverted repeat regions (IRs) of 31,171 bp.
View Article and Find Full Text PDFBMC Res Notes
January 2025
Bioinformatics Center, North-Eastern Hill University, Shillong, 793022, India.
Objectives: Nepenthes, sometimes known as tropical pitcher plants or monkey cups, is a carnivorous plant genus that contains more than 160 species. Nepenthes khasiana, India's sole representative of the genus, is a rare and endangered dioecious plant endemic to North-east India. Despite the fact that it is a prominent insectivorous plant in the Nepenthaceae family, genomic resources for the species are limited, making genomic breeding and understanding the genetic basis of botanical carnivory difficult.
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