Molecular gut content analysis of different spider body parts.

Molecular gut content analysis of different spider body parts.
复制标题

DOI:
10.1371/journal.pone.0196589
复制
发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Harwood JD
Harwood JD
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Macías-Hernández N;Athey K;Tonzo V;Wangensteen OS;Arnedo M;Harwood JD

文献摘要

参考文献

被引文献

相似文献

分子肠道内容物分析彻底改变了食物网和摄食相互作用的研究,允许检测许多生物肠道内的猎物DNA。然而,成功的猎物检测是一个具有挑战性的过程,许多因素影响着从DNA提取过程开始的每一步。蜘蛛是液体饲养者,其分支的肠憩室延伸到它们的腿和整个前体,因此消化发生在身体的不同部位,简单的肠道解剖是不可能的。在这项研究中,我们研究了猎物检测的差异,从蜘蛛的身体的不同部位的DNA提取物:腿,前体和后体,使用猎物特异性PCR和metabarcoding方法。我们进行了饲养试验与木虱猎人蜘蛛Dysdera verneaui西蒙,1883年(Dysderidae)估计的时间,猎物的DNA是在捕食者喂养后检测。虽然我们发现,蜘蛛身体的所有部分都适合肠道内容物分析时,使用猎物特异性PCR方法,基于metabarcoding的结果表明,后体是最佳的检测捕食蜘蛛,因为它包含了最高浓度的猎物DNA较长的后喂养期。其他蜘蛛可能会显示出与D不同的结果。verneaui,但考虑到不同科在生理和消化方面的相似性,可以合理地假设这在物种间是常见的,并且这种方法在蜘蛛中具有广泛的实用性。
Molecular gut-content analysis has revolutionized the study of food webs and feeding interactions, allowing the detection of prey DNA within the gut of many organisms. However, successful prey detection is a challenging procedure in which many factors affect every step, starting from the DNA extraction process. Spiders are liquid feeders with branched gut diverticula extending into their legs and throughout the prosoma, thus digestion takes places in different parts of the body and simple gut dissection is not possible. In this study, we investigated differences in prey detectability in DNA extracts from different parts of the spider´s body: legs, prosoma and opisthosoma, using prey-specific PCR and metabarcoding approaches. We performed feeding trials with the woodlouse hunter spider Dysdera verneaui Simon, 1883 (Dysderidae) to estimate the time at which prey DNA is detectable within the predator after feeding. Although we found that all parts of the spider body are suitable for gut-content analysis when using prey-specific PCR approach, results based on metabarcoding suggested the opisthosoma is optimal for detection of predation in spiders because it contained the highest concentration of prey DNA for longer post feeding periods. Other spiders may show different results compared to D. verneaui, but given similarities in the physiology and digestion in different families, it is reasonable to assume this to be common across species and this approach having broad utility across spiders.
从高度降解的样品中回收的DNA损伤的量化 - 对粪便中DNA的案例研究。
DOI: 10.1186/1742-9994-3-11
发表时间: 2006-08-16
影响因子: 2.8
作者:
Deagle BE;Eveson JP;Jarman SN
通讯作者: Jarman SN
DOI: 10.1186/1471-2164-11-434
发表时间: 2010-07-16
期刊: BMC genomics
影响因子: 4.4
作者:
Ficetola GF;Coissac E;Zundel S;Riaz T;Shehzad W;Bessière J;Taberlet P;Pompanon F
通讯作者: Pompanon F
DOI: 10.1603/ec13356
发表时间: 2014-06-01
影响因子: 2.2
作者:
Greenstone, M. H.;Tillman, P. G.;Hu, J. S.
通讯作者: Hu, J. S.
DOI: 10.1111/j.1755-0998.2011.03098.x
发表时间: 2012-03-01
影响因子: 7.7
作者:
Brown, David S.;Jarman, Simon N.;Symondson, William O. C.
通讯作者: Symondson, William O. C.
DOI: 10.1371/journal.pone.0005252
发表时间: 2009
期刊: PloS one
影响因子: 3.7
作者:
Dunshea G
通讯作者: Dunshea G