Evidence map›Paper›PMID 41533172›Full record

ArticleMolecular biology reports2026

Marker assisted pyramiding of Pup1 and Saltol1 QTLs and recurrent parent genome recovery in elite rice variety CR 1009 Sub1.

Raiza Christina G, Aananthi N, Gunasekaran M, Gnanamalar R P, Merina Prem Kumari S, Amutha R, Saravana Pandian P

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular biology reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Raiza Christina GDepartment of Plant breeding and genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.
Aananthi NDepartment of Plant breeding and genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India. aananthi.n@tnau.ac.in.
Gunasekaran MDepartment of Plant breeding and genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.
Gnanamalar R PDepartment of Plant breeding and genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.
Merina Prem Kumari SDepartment of Biotechnology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.
Amutha RDepartment of Department of Seed Science and Technology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.
Saravana Pandian PDepartment of Soils and Environment, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, 625104, India.

Funding

Department of Science and Technology, Ministry of Science and Technology, India DST / SERB/ CRG / 2020 / 006260
6 · The paper itself

Abstract

backgroundRice cultivation in coastal and flood-prone regions is severely constrained by concurrent abiotic stresses such as salinity and submergence coupled with low P availability. Developing rice varieties with combined tolerance to these stresses is vital for ensuring sustainable productivity. The present study aimed to pyramid three key abiotic stress tolerance genes viz., Pup1 (low P tolerance) and Saltol1 (salinity tolerance) into the elite rice variety CR 1009 Sub1 through marker-assisted backcross breeding (MABB). METHODS AND

resultsAn intercross was made between two backcross inbred lines, BIL 1094 (CR 1009 Sub1 + Saltol1) and D5-1-3-2-1 (CR 1009 Sub1 + Pup1), followed by two rounds of backcrossing and selfing to generate BC₂F₂ populations. Foreground selection using gene-specific SSR markers (K46-1 and K29-3 for Pup1, RM 3412 for Saltol1 and ART 5 for Sub1) confirmed the presence of all three target loci. Background selection using 41 polymorphic SSR markers covering the whole chromosome revealed progressive genome recovery of the recurrent parent up to 94.8% in BC₂F₂. Residual heterozygosity and undesirable recombination events were minimal. Ten BC₂F₂ plants possessing all three target genes and high genomic similarity to CR 1009 Sub1 were identified as promising lines.

conclusionsThis study highlights the effectiveness of MABB in combining multiple abiotic stress tolerance genes without compromising the agronomic traits of the recurrent. The selected lines hold significant potential for developing resilient rice cultivars suited to multi-stress environments, contributing to sustainable rice production in vulnerable agro-ecosystems.

Indexed as

OryzaQuantitative Trait LociChromosome MappingCrosses, GeneticGenes, PlantGenetic MarkersGenome, PlantMicrosatellite RepeatsPlant BreedingPlant ProteinsSalinitySalt ToleranceStress, PhysiologicalGenetic MarkersPlant ProteinsCR 1009 Sub1Low phosphorus toleranceMABBRecurrent parentSalinity tolerance

Identifiers

PMID41533172

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.