نتایج جستجو برای: land races
تعداد نتایج: 124879 فیلتر نتایج به سال:
Introduction: A varicocele is defined as an abnormal venous dilatation and/or tortuosity of the pampiniform plexus in the scrotum. Varicocele is the major reversible cause of male infertility. It is observed in 35%–40% of all men with primary infertility. Objectives:Our purposes were determination of varicocelectomy benefits, anthocyanin effects on varicocle and also varicocelectomy isn'...
How generalist parasites with wide host ranges can evolve is a central question in parasite evolution. Albugo candida is an obligate biotrophic parasite that consists of many physiological races that each specialize on distinct Brassicaceae host species. By analyzing genome sequence assemblies of five isolates, we show they represent three races that are genetically diverged by ∼1%. Despite thi...
Host shifts and the formation of insect-host races are likely common processes in the speciation of herbivorous insects. The interactions of goldenrods Solidago (Compositae), the gall fly Eurosta solidaginis (Diptera: Tephritidae) and the beetle Mordellistena convicta (Coleoptera: Mordellidae) provide behavioural, ecological and genetic evidence of host races that may represent incipient specie...
Black rot, caused by Xanthomonas campestris pv. campestris (Xcc), is a severe seedborne disease of Brassica crops around the world. Nine races are recognized, being races 1 and 4 the most aggressive and widespread. The identification of Xcc races affecting Brassica crops in a target area is necessary to establish the adequate control measures and breeding strategies. The objectives of this stud...
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