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Wide crossing: opportunities and progress

机译：宽阔的过度：机会和进步

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Cool season food legumes (CSFLs) are increasingly being grown in marginal areas, where yield and production stability are affected by biotic and abiotic stresses to which they lack adequate resistance. Wild relatives of CSFLs possess valuable genes for resistance/tolerance to several of these stresses. Recently wide hybridization has shown potential for the genetic improvement of CSFLs. Genes for resistance to cyst nematode, and tolerance to cold have been transferred to chickpea (Cicer arietinum L.)from its closest relatives. The transfer of tolerance to cold is also being pursued in lentil (Lens culinaris Medikus). Wide hybridization could play a role in improving the adaptation of CSFLs. The tertiary gene-pool (GP3) of the CSFLs includes desirable variation. Embryo-ovule culture could play a role in expanding the hybridization range of the CSFLs if this technique were refined. The superior agronomic phenotypes produced following wide hybridization in Cicer and Lens, underlines the importance ofassessing the breeding value of wild accessions in hybrid combinations with their cultivated counterparts. Collaboration is needed at the international level, between national programs, gene banks and International Agricultural Research Centers, to tackle the complexity of wide crossing systematically. This paper reviews recent progress on wide hybridization in CSFLs.
机译：凉爽的季节食物豆类（CSFL）越来越多地在边缘地区种植，其中产量和生产稳定性受到它们缺乏足够抗性的生物和非生物胁迫的影响。 CSFL的野生亲属具有抗性/耐受性的有价值的基因对这些应力的几种。最近宽的杂交表明了CSFL的遗传改善的潜力。对囊肿抗囊肿的基因，并且对耐寒的耐药已从其最接近的亲属转移到鹰嘴豆（Cicer Arietinum L.）。扁豆（镜片Culinaris Medikus）也正在追求对寒冷的公差转移。广泛的杂交可以在改善CSFL的适应方面发挥作用。 CSFLS的三级基因库（GP3）包括所需的变异。如果改进该技术，胚胎胚珠培养可能在扩大CSFL的杂交范围内发挥作用。在Cicer和镜片中宽杂交后产生的优越的农艺表型强调了杂种组合与栽培对应物的野生加入育种价值的重要性。在国际一级，国家方案，基因银行和国际农业研究中心之间需要合作，以系统地解决广泛交叉路口的复杂性。本文审查了CSFLS中宽杂交的最近进展。

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