抗叶面病花生品种 GPBD 4 的科学和经济影响

IF 0.9 4区 农林科学 Q4 PLANT SCIENCES
R S Bhat, B N Motagi, G K Naidu, H L Nadaf, V A Giritammannavar, R V Hunje
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引用次数: 0

摘要

西班牙花生(Arachis hypogaea subsp fastigiata var vulgaris)是印度广泛种植的早熟花生品种,但与弗吉尼亚花生(Arachis hypogaea subsp hypogaea var hypogaea)相比,它们遭受的生物和非生物胁迫更大。真菌性叶面病害,即晚期叶斑病(LLS)和锈病造成的损失是全世界的一个重要制约因素。以前尝试转让这些有利性状的成功率有限。通过种间杂交培育出的弗吉尼亚型种质具有很强的抗性。通过广泛杂交和大规模分离群体的开发,在改良适应当地的西班牙串珠葡萄品种时,开始系统地利用这些抗性来源。在高病害压力下对这些育种品系进行深入评估,最终确定了早熟、高产、抗病的西班牙串珠品种 GPBD 4。通过 AICRIP 系统的广泛测试和发布种植、在农民田间的广泛示范以及在公共系统下有组织的种子生产,该品种得到了迅速推广,并继续使农民和消费者受益。从 2006 年到 2022 年,GPBD 4 产生的经济效益估计为 176.0 亿印度卢比。GPBD 4 是培育至少五个已发布品种的抗性来源。基于 GPBD 4 的制图群体的开发、表型数据的生成、下一代测序、分子标记的制图以及缩小基因组区域以确定抗病候选基因的合作努力,使其在标记辅助育种中得到了极大的利用,从而完善了基因组学驱动的花生改良。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The scientific and economic impact of the foliar disease-resistant peanut variety GPBD 4

The Spanish bunch (Arachis hypogaea subsp fastigiata var vulgaris) cultivars of peanut are early maturing and extensively cultivated in India, but they suffer more from biotic and abiotic stresses than the Virginia types (Arachis hypogaea subsp hypogaea var hypogaea). The loss due to fungal foliar diseases viz., late leaf spot (LLS) and rust is an important constraint world over. Previous attempts to transfer these favourable traits have met with limited success. A high level of resistance is available in Virginia-type germplasm developed through interspecific hybridization. Systematic utilization of these resistance sources was initiated in improving locally adapted Spanish bunch varieties through extensive hybridization and development of large-scale segregating populations. Intensive evaluation of these breeding lines under high disease pressure led to the identification of early maturing, high-yielding and disease-resistant Spanish bunch variety, GPBD 4. Extensive testing and release for cultivation by the AICRIP system, widespread demonstrations on farmers’ fields and organized seed production under public systems led to its quick popularization, and it continued to benefit the farmers and consumers. An estimated economic benefit of INR 17.60 billion was derived from GPBD 4 for the period spanning from 2006 to 2022. GPBD 4 served as the source of resistance to breed at least five released varieties. The development of GPBD 4-based mapping populations, generation of phenotypic data, next-generation sequencing, mapping with molecular markers and narrowing down of genomic regions to identify the candidate genes governing disease resistance under collaborative efforts led to its immense utilization in marker-assisted breeding thereby refining the genomics-driven peanut improvement.

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来源期刊
Australasian Plant Pathology
Australasian Plant Pathology 生物-植物科学
CiteScore
2.90
自引率
0.00%
发文量
51
审稿时长
3 months
期刊介绍: Australasian Plant Pathology presents new and significant research in all facets of the field of plant pathology. Dedicated to a worldwide readership, the journal focuses on research in the Australasian region, including Australia, New Zealand and Papua New Guinea, as well as the Indian, Pacific regions. Australasian Plant Pathology is the official journal of the Australasian Plant Pathology Society.
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