Hybridization of two major termite invaders as a consequence of human activity.
Hybridization of two major termite invaders as a consequence of human activity.
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DOI：
10.1371/journal.pone.0120745
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Su NY
中科院分区：
文献类型：
--
作者：
Chouvenc T;Helmick EE;Su NY
虽然入侵物种与本地物种的杂交是常见的，但两种入侵物种之间的杂交是罕见的。台湾地白蚁（Coptotermes formosanus）和亚洲地白蚁（C. gestroi）在生态上都是成功的，并且是世界上两种最重要的经济白蚁害虫。由于人类活动，这两个物种已经遍布世界许多地区;然而，由于不同的生态要求，它们的分布仅在三个狭窄的地区重叠。在南佛罗里达，C. formosanus和C.由于这两个物种都具有入侵性，2013年和2014年有记录以来，这两个物种的扩散飞行季节首次重叠。在田间很容易观察到异种个体的配对，C。gestroi雄性优先与C.而不是来自同一物种的雌性。在实验室中，异种和同种配对有一个相等的殖民地建立率，但异种初期殖民地的增长速度的两倍同种初期殖民地，这表明一个潜在的情况下的混合活力。由于在田间两个物种之间的所有前合子障碍被解除，在实验室中明显缺乏后合子障碍，这提高了在南佛罗里达进行渐渗杂交的可能性。虽然实验室的观察仍有待证实，在外地，和有翅杂种的生育能力是目前未知的，我们的研究结果提出了一个切实的关注两个主要的破坏性害虫物种的杂交。这种混合可能与新的经济影响有关。
While hybridization of an invasive species with a native species is a common occurrence, hybridization between two invasive species is rare. Formosan subterranean termites (Coptotermes formosanus) and Asian subterranean termites (C. gestroi) are both ecologically successful and are the two most economically important termite pests in the world. Both species have spread throughout many areas of the world due to human activity; however, their distributions overlap in only three narrow areas because of distinct ecological requirements. In south Florida, where C. formosanus and C. gestroi are both invasive, the dispersal flight seasons of both species overlapped for the first time on record in 2013 and 2014. Pairings of heterospecific individuals were readily observed in the field and C. gestroi males preferentially engaged in mating behavior with C. formosanus females rather than females from their own species. In the laboratory, heterospecific and conspecific pairings had an equal colony establishment rate, but heterospecific incipient colonies had twice the growth rate of conspecific incipient colonies, suggesting a potential case of hybrid vigor. As all pre-zygotic barriers were lifted between the two species in the field, the apparent absence of post-zygotic barriers in the laboratory raises the possibility for introgressive hybridization in south Florida. While laboratory observations remain to be confirmed in the field, and the alate hybrid fertility is currently unknown, our results raise a tangible concern about the hybridization of two major destructive pest species. Such hybridization would likely be associated with a new economic impact.
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DOI：
10.1073/pnas.0911802107
发表时间：
2010-02-23
影响因子：
11.1
作者：
Fitzpatrick, Benjamin M.;Johnson, Jarrett R.;Shaffer, H. Bradley
通讯作者：
Shaffer, H. Bradley
影响因子：
11.6
作者：
Garroway, Colin J.;Bowman, Jeff;Wilson, Paul J.
通讯作者：
Wilson, Paul J.
影响因子：
2.9
作者：
Husseneder, Claudia;Simms, Dawn M.;Vargo, Edward L.
通讯作者：
Vargo, Edward L.
影响因子：
--
作者：
Hartke, Tamara R.;Rosengaus, Rebeca B.
通讯作者：
Rosengaus, Rebeca B.
从物种形成到内在杂交：白蚁的岛屿亚种的植物地理结构，网状透明杆菌。
影响因子：
3.4
作者：
Lefebvre T;Châline N;Limousin D;Dupont S;Bagnères AG
通讯作者：
Bagnères AG