杂交稻性能杂种优势的分子生理基础。

IF 3 3区农林科学 Q1 AGRONOMY

Molecular Breeding Pub Date : 2025-05-23 eCollection Date: 2025-06-01 DOI:10.1007/s11032-025-01577-x

Nia Manlulu, Rogemae Ravela, Frodie Waing, Leonilo Gramaje

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引用次数: 0

摘要

杂种优势常被用来生产比近交系品种性能更好的高产作物。商业水稻育种也利用了这一现象，主要是利用细胞质雄性不育（CMS）和环境敏感基因雄性不育（EGMS）。然而，对杂种优势的分子和生理基础的有限理解阻碍了研究人员充分利用杂种育种的潜力。本文综述了水稻杂种优势的各种解释和机制，包括杂种优势理论的证据，以及现代组学方法在杂种优势和杂种优势相关性状表征方面的应用。杂种优势是最常被引用的产量相关性状背后的机制，并确定了与杂种优势相关的各种分子和生理标记。

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Molecular and physiological basis of heterosis in hybrid rice performance.

Heterosis is often exploited to produce high-yielding crops with better performance than their inbred counterparts. Commercial rice breeding has made use of this phenomenon as well, primarily through the use of cytoplasmic male sterility (CMS) and environment-sensitive genic male sterility (EGMS). However, a limited understanding of the molecular and physiological basis of heterosis prevents researchers from harnessing the full potential of hybrid breeding. This review examines the various explanations and mechanisms of heterosis in rice, including evidence fitting the established theories of heterosis and the use of modern omics approaches to characterizing heterosis and heterosis-related traits. Overdominance was the most frequently cited mechanism behind yield-related traits and various molecular and physiological markers associated with heterosis were identified.

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来源期刊

Molecular Breeding 农林科学-农艺学

CiteScore

5.60

自引率

6.50%

发文量

审稿时长

1.5 months

期刊介绍： Molecular Breeding is an international journal publishing papers on applications of plant molecular biology, i.e., research most likely leading to practical applications. The practical applications might relate to the Developing as well as the industrialised World and have demonstrable benefits for the seed industry, farmers, processing industry, the environment and the consumer. All papers published should contribute to the understanding and progress of modern plant breeding, encompassing the scientific disciplines of molecular biology, biochemistry, genetics, physiology, pathology, plant breeding, and ecology among others. Molecular Breeding welcomes the following categories of papers: full papers, short communications, papers describing novel methods and review papers. All submission will be subject to peer review ensuring the highest possible scientific quality standards. Molecular Breeding core areas: Molecular Breeding will consider manuscripts describing contemporary methods of molecular genetics and genomic analysis, structural and functional genomics in crops, proteomics and metabolic profiling, abiotic stress and field evaluation of transgenic crops containing particular traits. Manuscripts on marker assisted breeding are also of major interest, in particular novel approaches and new results of marker assisted breeding, QTL cloning, integration of conventional and marker assisted breeding, and QTL studies in crop plants.