ArticleRice (New York, N.Y.)2020
Natural Sequence Variations and Combinations of GNP1 and NAL1 Determine the Grain Number per Panicle in Rice.
Article in Rice (New York, N.Y.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 34 citations in OpenAlex.
- Genome-wide association study uncovers the genetic loci for yield-related traits in waxy rice.Journal of applied genetics · 2026Article
- Engineering non-coding DNA Elements in Rice: an Elegant Approach To fine-tune Agronomical Advantageous Traits.Rice (New York, N.Y.) · 2025Review
- Gene Pyramiding Strategies for Sink Size and Source Capacity for High-Yield Japonica Rice Breeding.Rice (New York, N.Y.) · 2025Review
- Article
- Serine protease NAL1 exerts pleiotropic functions through degradation of TOPLESS-related corepressor in rice.Nature plants · 2023Article
- Identification of Newer Stable Genetic Sources for High Grain Number per Panicle and Understanding the Gene Action for Important Panicle Traits in Rice.Plants (Basel, Switzerland) · 2023Article
- Large Vascular Bundle Phloem Area 4 enhances grain yield and quality in rice via source-sink-flow.Plant physiology · 2023Article
- Characterization ofMolecular breeding : new strategies in plant improvement · 2022Article
- Yield-associated putative gene regulatory networks in Oryza sativa L. subsp. indica and their association with high-yielding genotypes.Molecular biology reports · 2022Article
- Partially functional NARROW LEAF1 balances leaf photosynthesis and plant architecture for greater rice yield.Plant physiology · 2022Article
- Genetic and molecular factors in determining grain number per panicle of rice.Frontiers in plant science · 2022Review
- Phytohormone-Mediated Molecular Mechanisms Involving Multiple Genes and QTL Govern Grain Number in Rice.Frontiers in genetics · 2020Review
- Article
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundThe grain number per panicle (GNP), which is one of three grain yield components, is an important trait for the genetic improvement of rice. Although the NAL1 and GNP1 genes regulating the rice GNP and grain yield have been cloned, their allelic diversity, functional differences in rice germplasms, and effects of their combination on GNP and grain yield remain unclear.
resultsBased on DNA sequences of these two genes in 198 cultivated rice (Oryza sativa) and 8-10 wild rice (Oryza rufipogon) germplasms, 16 and 14 haplotypes were identified for NAL1 and GNP1, respectively. The NAL1 gene had the strongest effects on GNP in indica (xian) and japonica (geng) subpopulations. In contrast, GNP1 had no significant effects in the geng subpopulation and was rare in the xian background, in which the superior GNP1 allele (GNP1-6) was detected in only 4.0% of the 198 germplasms. Compared with the transgenic lines with GNP1 or NAL1, the transgenic lines with both genes had a higher GNP (15.5%-25.4% and 11.6%-15.9% higher, respectively) and grain yield (5.7%-9.0% and 8.3%-12.3% higher, respectively) across 3 years. The two genes combined in the introgression lines in Lemont background resulted in especially favorable effects on the GNP.
conclusionsOur results indicated that the GNP1 and NAL1 exhibited obvious differentiation and their combinations can significantly increase the grain yield in geng rice cultivars. These observations provide insights into the molecular basis of the GNP and may be useful for rice breeding of high yield potential by pyramiding GNP1 and NAL1.
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