ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2005
High-resolution physical mapping reveals that the apospory-specific genomic region (ASGR) in Cenchrus ciliaris is located on a heterochromatic and hemizygous region of a single chromosome.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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.
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.
Who cites it
34 citing papers in PubMed.
- Identification of different cDNA clones of the Apomixis-specific gene-1 homolog involved in aposporous embryo sac formation in guineagrass (Plant biotechnology (Tokyo, Japan) · 2026Article
- Paradigm shift in apomixis research: Targeting mutants with elements of apomixis in sexual crops.Planta · 2026Review
- How Apomictic and Sexual Cenchrus Species Can Help Elucidate the Mechanisms Leading to Apospory.Methods in molecular biology (Clifton, N.J.) · 2026Article
- A sexual/apomictic consensus linkage map of Eragrostis curvula at tetraploid level.BMC plant biology · 2025Article
- Apomixis: oh, what a tangled web we have!Planta · 2023Review
- The repetitive DNA sequence landscape and DNA methylation in chromosomes of an apomictic tropical forage grass,Frontiers in plant science · 2022Article
- Apomixis: genetic basis and controlling genes.Horticulture research · 2022Article
- Single-cell transcriptome profiling of buffelgrass (Cenchrus ciliaris) eggs unveils apomictic parthenogenesis signatures.Scientific reports · 2021Article
- Effect of heavy metals in the cement dust pollution on morphological and anatomical characteristics ofSaudi journal of biological sciences · 2021Article
- Single Independent Autopolyploidization Events From Distinct Diploid Gene Pools and Residual Sexuality Support Range Expansion of Locally Adapted Tetraploid Genotypes in a South American Grass.Frontiers in genetics · 2021Article
- Article
- Article
- Article
- Review
- Retro-ElementFrontiers in genetics · 2020Article
- Characterization and Dynamics of Repeatomes in Closely Related Species ofFrontiers in plant science · 2020Article
- Partitioning Apomixis Components to Understand and Utilize Gametophytic Apomixis.Frontiers in plant science · 2019Review
- Structure, target-specificity and expression of PN_LNC_N13, a long non-coding RNA differentially expressed in apomictic and sexual Paspalum notatum.Plant molecular biology · 2018Article
- A reference floral transcriptome of sexual and apomictic Paspalum notatum.BMC genomics · 2017Article
- Evidence of Allopolyploidy in Urochloa humidicola Based on Cytological Analysis and Genetic Linkage Mapping.PloS one · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
An apomictic mode of reproduction known as apospory is displayed by most buffelgrass (Cenchrus ciliaris) genotypes, but rare sexual individuals have been identified. Previously, intraspecific crosses between sexual and aposporous genotypes allowed linkage to be discovered between the aposporous mode of reproduction and nine molecular markers that had been isolated from an aposporous relative, Pennisetum squamulatum. This region was described as the apospory-specific genomic region (ASGR). We now show an ideogram of the chromosome complement for aposporous tetraploid buffelgrass accession B-12-9 including the ASGR-carrier chromosome. The ASGR-carrier chromosome has a region of hemizygosity, as determined by in situ hybridization of BAC clones and unique morphological characteristics when compared with other chromosomes in the genome. In spite of its unique morphology, the ASGR-carrier chromosome could be identified as one of the chromosomes of a meiosis I quadrivalent. A similar partially hemizygous segment was also detected in the ASGR-carrier chromosome of the aposporous buffelgrass genotype, Higgins, but not in the sexual accession B-2S. Two non-recombining BACs linked to apospory were physically mapped on a highly condensed chromatin region of the short arm of B-12-9, and the distance between the BACs was estimated to be approximately 11 Mbp, a distance similar to what previously has been shown in P. squamulatum. The short arm of the ASGR-carrier chromosome was highly condensed at pachytene and extended only 1.7-2.7 fold that of mitotic chromosomes. Low recombination in the ASGR may partially be due to its localization in heterochromatin.
Indexed as
Identifiers
16133318What OpenQuestion holds
Registered trials
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.