The life-history fitness of F1 hybrids of the microcrustacean Daphnia pulex and D. pulicaria (Crustacea, Anomopoda) [0.03%]
大型溞和轮斑裸腹蚤F1杂交子代的生活史适应值研究
Irene Moy,Makayla Green,Thinh Phu Pham et al.
Irene Moy et al.
Negative interaction between alleles that arise independently in diverging populations (i.e., Dobzhansky-Muller incompatibilities) can cause reduction of fitness in their hybrids. However, heterosis in hybrids can emerge if hybridization br...
Providing interactive and field laboratories while teaching university marine biology classes in an era of COVID-19 [0.03%]
新冠疫情时代的大学海洋生物学课程的互动和现场实验教学
David L Cowles,Kirt L Onthank
David L Cowles
An entirely online upper-division university marine invertebrates course modeled after a field experience-intensive course that also provided interaction with live animals and research experience was offered at Rosario Beach Marine Laborato...
Vascular architecture in the bacteriogenic light organ of Euprymna tasmanica (Cephalopoda: Sepiolidae) [0.03%]
拟袍壳萤火鱿菌体光器官血管结构的研究（软体动物门：墨鱼科）
A J Patelunas,M K Nishiguchi
A J Patelunas
Symbiosis between southern dumpling squid, Euprymna tasmanica (Cephalopoda: Sepiolidae), and its luminescent symbiont, the bacterium Vibrio fischeri, provides an experimentally tractable system to examine interactions between the eukaryotic...
Carboniferous Onychophora from Montceau-les-Mines, France, and onychophoran terrestrialization [0.03%]
法国孟斯矿晚石炭世多足纲-Onychophora的发现及其登陆过程的研究
Russell J Garwood,Gregory D Edgecombe,Sylvain Charbonnier et al.
Russell J Garwood et al.
The geological age of the onychophoran crown-group, and when the group came onto land, have been sources of debate. Although stem-group Onychophora have been identified from as early as the Cambrian, the sparse record of terrestrial taxa fr...
Structure of the male copulatory apparatus in Prognathorhynchus busheki (Platyhelminthes, Kalyptorhynchia) [0.03%]
棘头动物门套咽纲并吻属雄性交配器官的结构
David A Doe,Julian P S Smith rd
David A Doe
Gnathorhynchidae is a diverse taxon of predatory eukalyptorhynch flatworms characterized by an armed proboscis. Their present taxonomy is not concordant with what we know of their phylogeny. Further progress in this area is hindered by a la...
Tuning of shortening speed in coleoid cephalopod muscle: no evidence for tissue-specific muscle myosin heavy chain isoforms [0.03%]
无证据表明 coleoid 头足类肌肉中存在组织特异性肌球蛋白重链异构体：对缩短速度调节的研究
Justin F Shaffer,William M Kier
Justin F Shaffer
The contractile protein myosin II is ubiquitous in muscle. It is widely accepted that animals express tissue-specific myosin isoforms that differ in amino acid sequence and ATPase activity in order to tune muscle contractile velocities. Rec...
The secret to a successful relationship: lasting chemistry between ascidians and their symbiotic bacteria [0.03%]
Ascidiacea 和其共生细菌长久合作的秘诀：互利的化学信号交流
Eric W Schmidt
Eric W Schmidt
Bioactive secondary metabolites are common components of marine animals. In many cases, symbiotic bacteria, and not the animals themselves, synthesize the compounds. Among marine animals, ascidians are good models for understanding these sy...
Rachel Ann Merz
Rachel Ann Merz
By controlling the traction between its body and the tube wall, a tube-dwelling polychaete can move efficiently from one end of its tube to the other, brace its body during normal functions (e.g., ventilation and feeding), and anchor within...
The reproductive system of Osedax (Annelida, Siboglinidae): ovary structure, sperm ultrastructure, and fertilization mode [0.03%]
Osedax(瓣鳃纲、Siboglinidae科)的生殖系统：卵巢结构、精子超微结构及受精方式
Sigrid Katz,Greg W Rouse
Sigrid Katz
Osedax is a genus of siboglinid annelids in which the females live on dead vertebrate bones on the seafloor. These females have a posterior end that lies within the bone and contains the ovarian tissue, as well as the "roots" involved with ...
Diagnostic PCR can be used to illuminate meiofaunal diets and trophic relationships [0.03%]
诊断PCR可用于揭示微型无脊椎动物的饮食和营养关系
Hanna Maghsoud,Austin Weiss,Julian P S Smith rd et al.
Hanna Maghsoud et al.
Analysis of the meiofaunal food web is hampered because few prey have features that persist long enough in a predator's digestive tract to allow identification to species. Hence, at least for platyhelminth predators, direct observations of ...