Evidence map›Paper›PMID 41946853›Full record

ArticlePlant cell reports2026

Chromosome-level genome assembly, annotation, evolutionary analysis, and establishment of transformation systems in Carex rigescens.

Luyu Wang, Chengze Ma, Yue Li, Kai Zhu, Chu Wang, Yiming Wu, Qiannan Hu, Yan Sun

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Plant cell reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Draft genome sequence ofMicrobiology resource announcements · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Luyu Wang *Department of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Chengze Ma *Department of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Yue LiDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Kai ZhuDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Chu WangDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Yiming WuDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China.
Qiannan HuDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China. qnanhu@cau.edu.cn.ORCID http://orcid.org/0000-0003-0491-6676
Yan SunDepartment of Turfgrass Science and Engineering, College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China. 02008@cau.edu.cn.ORCID http://orcid.org/0000-0002-8486-3967

Funding

National Natural Science Foundation of China Grant No. 32271763 and 32201465
6 · The paper itself

Abstract

key messageUsing PacBio and Hi-C technologies, we generated a chromosome-level whole-genome assembly of Carex rigescens and established its genetic transformation system, which provides novel insights into the research of this species. Carex rigescens is an important turfgrass species and grass for ecological restoration, but the lack of genomic resources in the genus Carex has hindered its genetic improvement. In this study, C. rigescens was determined to be diploid (2n = 60) by flow cytometry and chromosome visualization. We generated a high-quality genome assembly of C. rigescens via a combination of Illumina, PacBio, and Hi-C technologies, with 300 Mb of sequences anchored to 30 chromosomes. This genome contains 59,761 functionally annotated protein-coding genes (91.28%), and repetitive sequences account for 33.28% of the total genome length. Evolutionary analysis reveals that one WGD event had occurred in C. rigescens and that an LTR burst in C. rigescens occurred around 0.04 Mya. We also performed WOX gene family analysis, including its localization and classification on the chromosomes of C. rigescens, as well as the analysis of cis-acting elements in the CrWOX14 promoter. The first efficient regeneration and transformation system was established. These findings provide new insights into the characterization and evolution of the genomes of the genus Carex and provide a reference for comparative genetic and genomic studies of the genus Carex. They also lay the foundation for the acquisition of transgenic C. rigescens.

Indexed as

Carex PlantChromosomes, PlantEvolution, MolecularGenome, PlantTransformation, GeneticMolecular Sequence AnnotationPhylogenyPlants, Genetically ModifiedCarex rigescensGenome sequenceRegeneration and transformation systemWOX transcriptional factors

Identifiers

PMID41946853
PMCPMC13056751

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.