Variation in resistance to multiple pathogen species: anther smuts of Silene uniflora.
Variation in resistance to multiple pathogen species: anther smuts of Silene uniflora.
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DOI：
10.1002/ece3.346
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发表时间：
2012-09
影响因子：
2.6
通讯作者：
Hood, Michael E.
中科院分区：
文献类型：
--
作者：
Chung, Erin;Petit, Elsa;Antonovics, Janis;Pedersen, Amy B.;Hood, Michael E.
当它们利用宿主个体内的相同微生态位时，在共享的宿主物种上发生多个病原体物种是出乎意料的。对这种观察结果的一种解释是存在病原体特异性抗性，其在宿主群体内分离到被竞争病原体差异占据的位点。本研究采用实验接种，以测试是否特定的电阻可能有助于维护两个物种的花药黑穗病真菌，微孢菌silenes inflament和Microbotryum lagerheimii，在英格兰和威尔士的单花蝇子草的自然种群。总体而言，这两种病原体的抗性是强烈的正相关的宿主种群之间，在较小的程度上在人口内的宿主家庭。还观察到一些特异性抗性的实例，并通过重复接种证实。结果表明，选择一种病原体的抗性可能会保护主机通过主机的相关病原体物种的转移出现，相反，两种病原体的共存可能取决于存在的主机基因型易感。
The occurrence of multiple pathogen species on a shared host species is unexpected when they exploit the same micro-niche within the host individual. One explanation for such observations is the presence of pathogen-specific resistances segregating within the host population into sites that are differentially occupied by the competing pathogens. This study used experimental inoculations to test whether specific resistances may contribute to the maintenance of two species of anther-smut fungi, Microbotryum silenes-inflatae and Microbotryum lagerheimii, in natural populations of Silene uniflora in England and Wales. Overall, resistance to the two pathogens was strongly positively correlated among host populations and to a lesser degree among host families within populations. A few instances of specific resistance were also observed and confirmed by replicated inoculations. The results suggest that selection for resistance to one pathogen may protect the host from the emergence via host shifts of related pathogen species, and conversely that co-occurrence of two species of pathogens may be dependent on the presence of host genotypes susceptible to both.
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影响因子：
--
作者：
DAY, AW
通讯作者：
DAY, AW
影响因子：
1.7
作者：
Aparicio, JP;Solari, HG;Bonino, N
通讯作者：
Bonino, N
影响因子：
--
作者：
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通讯作者：
GARBER, ED
影响因子：
--
作者：
Gold, Alexander;Giraud, Tatiana;Hood, Michael E.
通讯作者：
Hood, Michael E.
影响因子：
3.3
作者：
Biere, A;Antonovics, J
通讯作者：
Antonovics, J