野生疏螺旋体抗性来源鉴定。豇豆(Vigna unguiculata) [L]。多哥的一种种质

IF 1.5 4区农林科学 Q2 AGRONOMY

Plant Breeding Pub Date : 2023-11-08 DOI:10.1111/pbr.13150

Yorikoume Kondi, Aziadekey Mawuli, Michael P. Timko, Banla E. Modom

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引用次数: 0

摘要

摘要/ Abstract摘要:粗刺甲是豇豆(Vigna unguiculata)的主要生物限制之一。在整个西非生产。控制和限制这种杂草传播的最好方法仍然是遗传控制，但最近的研究表明，在多哥常见的所有豇豆品种都对这种杂草敏感。本研究旨在研究多哥豇豆种质对粗叶蛾的抗性反应。在自然侵染条件下进行田间试验，在人工侵染条件下进行盆栽试验。利用SSR1、61RM2和C42‐2B三个分子标记进行基因分型，这三个分子标记与葡萄球菌抗性基因有关联。结果表明，TG20_66、TG20_82和TG20_108 3个豇豆品种对粗叶蛾具有明显的抗性。所有三个抗性材料均显示存在RSG3‐301抗性基因。多哥豇豆品种中存在潜在的抗性基因源。

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Identification of sources of resistance to Striga gesnerioides Willd. Vatke among cowpea (Vigna unguiculata [L.] Walp) germplasm from Togo

Abstract Striga gesnerioides is one of the major biotic constraints to cowpea ( Vigna unguiculata [L.] Walp) production throughout West Africa. The best way to control and limit the spread of this weed remains genetic control, but recent works have shown that all cowpea varieties commonly grown in Togo are susceptible to S. gesnerioides . This study aims to investigate the resistance response of cowpea germplasm from Togo to S. gesnerioides . A field test was performed under natural infestation followed by a pots test under artificial infestation. Genotyping was carried out with three molecular markers SSR1, 61RM2 and C42‐2B, known for their linkage to S. gesnerioides resistance genes. The results have revealed three cowpea accessions, TG20_66, TG20_82 and TG20_108, phenotypically resistant to S. gesnerioides . All three resistant accessions have shown the RSG3‐301 resistance gene presence. Potential resistance gene sources to S. gesnerioides exist among cowpea accessions from Togo.

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来源期刊

Plant Breeding 农林科学-农艺学

CiteScore

4.40

自引率

5.00%

发文量

审稿时长

3.0 months

期刊介绍： PLANT BREEDING publishes full-length original manuscripts and review articles on all aspects of plant improvement, breeding methodologies, and genetics to include qualitative and quantitative inheritance and genomics of major crop species. PLANT BREEDING provides readers with cutting-edge information on use of molecular techniques and genomics as they relate to improving gain from selection. Since its subject matter embraces all aspects of crop improvement, its content is sought after by both industry and academia. Fields of interest: Genetics of cultivated plants as well as research in practical plant breeding.