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首页> 外文期刊>Acta Horticulturae >Advances in strawberry breeding in Mexico: genotypes selection with high productivity, good fruit quality, and tolerance to the local viral complex and Fusarium oxysporum
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Advances in strawberry breeding in Mexico: genotypes selection with high productivity, good fruit quality, and tolerance to the local viral complex and Fusarium oxysporum

机译：墨西哥草莓育种的进展：基因型选择高生产率，良好的果实品质和对当地病毒复合物和镰刀菌的耐受性

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摘要

The Mexican strawberry industry depends on foreign cultivars, which exhibit high productivity and fruit quality in their counties of origin, but when grown in central Mexico, do not express the same potential. They are also susceptible to Fusarium oxysporum f. sp. fragariae (Fof), and some of them to the local viral complex (LVC). INIFAP and CINVESTAV are developing genotypes adapted to our environment, and precocious, productive and with good organoleptic and nutraceutical qualities. The aim of thiswork is to update the progress made from 2011 to 2014. Intraspecific clones of F. x ananassa and interspecific clones with F. chiloensis, complemented with one or two backcrosses to the first one, were evaluated. Results showed that intraspecific cloneshad greater genetic advances for yield and fruit quality, but only a few of them exhibited simultaneously higher tolerance to Fof and to the LVC. On the other hand, interspecific clones exhibited greater tolerance to Fof, and in certain cases to the LVC. In this research the implications of the genetic improvement for yield and fruit quality, and the long term breeding strategy, in addition to tolerance against both kind of pathogens, are discussed. Difficulties and consequences of selection for tolerance to Fof and LVC, using as sources of resistance to both pathogens in F. chiloensis as well as in F. x ananassa, under field conditions, and its impact on the genetic gain for yield and quality, and the need to confirm the tolerance to Fof by mean of artificial inoculations in the first place, and if appropriate, eventually, use it to select among offsprings, at the seedling stage, are analyzed.
机译：墨西哥草莓行业依赖于外国品种，在墨西哥中部生长时，展现出高生产率和水果质量，但在墨西哥中部生长，请勿表达相同的潜力。它们也易于镰刀镰刀菌。 sp。 Fragariae（FOF），以及其中一些到当地病毒复合物（LVC）。 Inifap和Cinvestav正在开发适应我们的环境的基因型，以及早熟，生产力和良好的感官和营养品质。本文的目的是更新2011年至2014年的进展。评估了F. X ananassa的inthashecific克隆与f.嗜酸盐的克隆，与第一个或两个回复相辅相成的F. chiloensis。结果表明，拆放遗传资源遗传进展的产量和果实质量，但其中只有少数几个对FOF和LVC具有更高的耐受性。另一方面，间隙克隆对FOF具有更大的耐受性，并且在某些情况下为LVC。在本研究中，讨论了产量和果实质量的遗传改善的影响，以及长期育种策略，除了对两种病原体的耐受性。选择对FOF和LVC的耐受性的困难和后果，用作F.Chiloensis的病原体以及F. X ananassa，在现场条件下，对产量和质量的影响，以及对遗传利益的影响在第一位置，通过人工接种的平均值确认对FOF的公差，并且如果适当，最终使用它在幼苗阶段使用它来选择在幼苗阶段。

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