Evidence map›Paper›PMID 7816026›Full record

ArticleMolecular & general genetics : MGG1994

Comparative analysis of microsatellite DNA polymorphism in landraces and cultivars of rice.

G P Yang, M A Maroof, C G Xu, Q Zhang, R M Biyashev

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Molecular & general genetics : MGG, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
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  6. Screening of rice landraces for salinity tolerance at seedling stage through morphological and molecular markers.Physiology and molecular biology of plants : an international journal of functional plant biology · 2014
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  17. Genetic diversity and phylogeny of Japanese sake-brewing rice as revealed by AFLP and nuclear and chloroplast SSR markers.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2004
    Article
  18. Sequence variations of simple sequence repeats on chromosome-4 in two subspecies of the Asian cultivated rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2004
    Article
  19. Article
  20. Swiss Mattenklee landraces, a distinct and diverse genetic resource of red clover (Trifolium pratense L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2003
    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

5 authors.

G P YangDepartment of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg 24061.
M A Maroof
C G Xu
Q Zhang
R M Biyashev

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic polymorphisms of ten microsatellite DNA loci were examined among 238 accessions of landraces and cultivars that represent a significant portion of the distribution range for both indica and japonica groups of cultivated rice. In all, 93 alleles were identified with these ten markers. The number of alleles varied from a low of 3 or 4 at each of four loci, to an intermediate value of 9-14 at five loci, and to an extraordinarily high 25 at one locus. The numbers of alleles per locus are much larger than those detected using other types of markers. The number of alleles detected at a locus is significantly correlated with the number of simple sequence repeats in the targeted microsatellite DNA. Indica rice has about 14% more alleles than japonica rice, and such allele number differences are more pronounced in landraces than in cultivars. The indica-japonica differentiation component accounted for about 10% of the diversity in the total sample, and twice as much differentiation was detected in cultivars as in landraces. About two-thirds as many alleles were observed in cultivars as in landraces; another two-thirds of the alleles in the cultivar group were found in modern elite cultivars or parents of hybrid rice. The majority of the simple sequence repeat (SSR) alleles that were present in high or intermediate frequencies in landraces ultimately survived into modern elite cultivars and hybrids. The greater resolving power and the efficient production of massive amounts of SSR data may be particularly useful for germplasm assessment and evolutionary studies of crop plants.

Indexed as

Polymorphism, GeneticAllelesBase SequenceDNA, PlantDNA, SatelliteGene FrequencyGenetic MarkersMolecular Sequence DataOryzaRepetitive Sequences, Nucleic AcidSpecies SpecificityDNA, PlantDNA, SatelliteGenetic Markers

Identifiers

PMID7816026

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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.