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首页> 外文期刊>HortScience >392291-VDR, a watermelon germplasm line with resistance to Squash vein yellowing virus-caused watermelon vine decline.
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392291-VDR, a watermelon germplasm line with resistance to Squash vein yellowing virus-caused watermelon vine decline.

机译:392291-VDR,一种西瓜种质品系,具有抗南瓜静脉变黄病毒引起的西瓜藤萎缩的能力。

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摘要

392291-VDR (vine decline-resistant) is a watermelon (Citrullus lanatus var. lanatus) line with resistance to watermelon vine decline (WVD) caused by the whitefly (Bemisia tabaci)-transmitted Squash vein yellowing virus (SqVYV). The line is derived from the U.S. PI 392291 after successive screening and pure line selection for six generations (S6) in a greehouse. The germplasm line 392291-VDR is not completely immune to infection by SqVYV because the virus can be detected in the crowns of inoculated plants by tissue blot nucleic acid hybridization. However, 392291-VDR plants infected with SqVYV do not decline and die like plants of 'Mickey Lee', 'Crimson Sweet' and other seedless commercial watermelon cultivars. Inoculated plants of 392291-VDR produce symptomless mature fruit unlike plants of WVD-susceptible commercial watermelon cultivars. In greenhouse tests conducted in 2010 and 2011, inoculated plants of 392291-VDR were rated 1 to 2 on a 1 to 9 scale (1=no symptoms and 9=plants dead) compared with plants of 'Crimson Sweet' and 'Mickey Lee' that were all rated 9. Other characteristics, including growth habit and fruit quality, of 392291-VDR are given.
机译:392291-VDR(抗葡萄枯萎病)是一种西瓜(Citrullus lanatus var。lanatus)品系,对由粉虱(Bemisia tabaci)传播的南瓜静脉黄化病毒(SqVYV)引起的西瓜抗衰老(WVD)具有抗性。该品系是在greehouse中连续筛选和选择六代(S6)的纯品系后,从美国PI 392291衍生而来的。种质系392291-VDR不能完全免疫SqVYV感染,因为可以通过组织印迹核酸杂交在接种植物的冠状病毒中检测到该病毒。但是,感染SqVYV的392291-VDR植物不会像“米奇李”,“深红色甜蜜”和其他无核商品西瓜品种的植物那样衰落和死亡。接种了392291-VDR的植物可产生无症状的成熟果实,这与对WVD敏感的商品西瓜品种的植物不同。在2010年和2011年进行的温室测试中,与“深红色的甜味”和“米奇的李”的植物相比,接种392291-VDR的植物以1到9的等级(1 =无症状,有9 =死亡)被评为1-2。均被评为9。给出了其他习性,包括生长习性和果实品质392291-VDR。

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