Suitability of European green frogs for intensive culture: Comparison between different phenotypes of the esculenta hybridogenetic complex

Neveu, A.

doi:10.1016/j.aquaculture.2009.06.027

Cited by 15 publications

(11 citation statements)

References 19 publications

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“…To test our force-calibration procedure for the fluid jet, we performed a control experiment using hair-cell bundles from the sacculus of the frog (strain ‘Rivan92’ of Rana ridibunda [Neveu, 2009]). Details of the experimental preparation have been published elsewhere (Tinevez et al, 2007).…”

Section: Methodsmentioning

confidence: 99%

Stiffness and tension gradients of the hair cell’s tip-link complex in the mammalian cochlea

Tobin

Chaiyasitdhi

Michel

et al. 2019

eLife

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Sound analysis by the cochlea relies on frequency tuning of mechanosensory hair cells along a tonotopic axis. To clarify the underlying biophysical mechanism, we have investigated the micromechanical properties of the hair cell’s mechanoreceptive hair bundle within the apical half of the rat cochlea. We studied both inner and outer hair cells, which send nervous signals to the brain and amplify cochlear vibrations, respectively. We find that tonotopy is associated with gradients of stiffness and resting mechanical tension, with steeper gradients for outer hair cells, emphasizing the division of labor between the two hair-cell types. We demonstrate that tension in the tip links that convey force to the mechano-electrical transduction channels increases at reduced Ca2+. Finally, we reveal gradients in stiffness and tension at the level of a single tip link. We conclude that mechanical gradients of the tip-link complex may help specify the characteristic frequency of the hair cell.

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Section: Methodsmentioning

confidence: 99%

Stiffness and tension gradients of the hair cell’s tip-link complex in the mammalian cochlea

Tobin

Chaiyasitdhi

Michel

et al. 2019

eLife

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“…Kurbağaların erginleri böcek, solucan, küçük yumuşakçalar ve birçok başka küçük hayvan dâhil olmak üzere etçil beslenirken, larvaları sudaki alglerle ve ölü hayvan artıklarıyla beslenmektedir (Suykerbuyk vd., 2007, Cagiltay vd., 2014, Campião vd., 2015, D'Silva, 2015. Entansif yetiştiriciliği yapılan kurbağalar ise pelet yemlerle beslenmektedir (Miles vd., 2004, Real vd., 2005, Neveu, 2009. Gereksinim duyulan besin maddelerinin yeterli olmaması, yemlemenin uygun ve yeterli olmaması, boylamanın yapılmaması ve suyun fiziksel ve kimyasal özellikleri, gibi nedenlerle beslenme hastalıkları meydana gelebilmektedir.…”

Section: Beslenme Hastalıklarıunclassified

Kurbağa Hastalıkları

Özer

DÖKENEL

2018

Süleyman Demirel Üniversitesi Eğirdir Su Ürünleri Fakültesi Dergisi

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Kurbağa eti birçok dünya mutfağında yerini almış gıda değeri yüksek bir besin kaynağıdır. Evcil hayvan, eğitim ve araştırma aracı olarak da önemli olan kurbağaların tüm organ ve dokuları farklı sanayi kollarında değerlendirilmektedir. Günümüzde kurbağa ihtiyacı doğadan yakalandığı gibi daha çok yetiştiricilik yoluyla sağlanmaktadır. Yaban kurbağalarda son yıllarda meydana gelen kitlesel kurbağa ölümleri yanında, yetiştirilen kurbağalarda meydana gelen hastalıklar ekonomik kayıpların oluşmasında önemli bir yer tutmaktadır. Gerek yaban ve gerekse de yetiştiriciliği yapılan farklı kurbağa türlerinin birçok enfeksiyöz ve enfeksiyöz olmayan hastalıkları bulunmaktadır. Enfeksiyöz olmayan hastalıkları daha çok beslenme düzensizliklerine ve çevresel faktörlere bağlı olarak gelişmektedir. Kurbağaların enfeksiyöz hastalıklarında paraziter, fungal, viral ve bakteriyel etkenler rol almaktadır. Paraziter hastalıkları protozoan, metazoan parazitler ve artropodlar meydana getirirken, kitridiomikozis, zigomikozis, kromomikozis, saprolegniazis ve ihtyofoniazis en sık rastlanılan mantar hastalıklarıdır. Ranavirus en çok görülen viral hastalık etkenidir. Kurbağaların en çok bilinen bakteriyel hastalıkları arasında ise dermatoseptisemi, streptokokkozis, flavobakteriozis, mikobakteriozis ve klamidiozis bildirilmiştir. Bu derlemenin amacı, kurbağa hastalıklarının tanıtılarak ülkemiz için çok yeni olan kurbağa yetiştiriciliğinin başarılı olabilmesine katkı sağlamaktır.

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“…In addition to their relative abundance which is promoted by the above reproductive pattern, P. esculentus have other advantages. Although in many cases they show either no differences or intermediate characteristics compared to their parental species [ 24 - 27 ], P. esculentus show behavioural differences [ 28 , 29 ], and, have, by heterosis, a greater fitness than the parental species in certain aspects [ 13 , 15 , 30 - 36 ]. The combination of the relative abundance and heterosis should out-compete P. lessonae in L-E complexes.…”

Section: Introductionmentioning

confidence: 99%

The role of deleterious mutations in the stability of hybridogenetic water frog complexes

2014

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BackgroundSome species of water frogs originated from hybridization between different species. Such hybrid populations have a particular reproduction system called hybridogenesis. In this paper we consider the two species Pelophylax ridibundus and Pelophylax lessonae, and their hybrids Pelophylax esculentus. P. lessonae and P. esculentus form stable complexes (L-E complexes) in which P. esculentus are hemiclonal. In L-E complexes all the transmitted genomes by P. esculentus carry deleterious mutations which are lethal in homozygosity.ResultsWe analyze, by means of an individual based computational model, L-E complexes. The results of simulations based on the model show that, by eliminating deleterious mutations, L-E complexes collapse. In addition, simulations show that particular female preferences can contribute to the diffusion of deleterious mutations among all P. esculentus frogs. Finally, simulations show how L-E complexes react to the introduction of translocated P. ridibundus.ConclusionsThe conclusions are the following: (i) deleterious mutations (combined with sexual preferences) strongly contribute to the stability of L-E complexes; (ii) female sexual choice can contribute to the diffusion of deleterious mutations; and (iii) the introduction of P. ridibundus can destabilize L-E complexes.

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Suitability of European green frogs for intensive culture: Comparison between different phenotypes of the esculenta hybridogenetic complex

Cited by 15 publications

References 19 publications

Stiffness and tension gradients of the hair cell’s tip-link complex in the mammalian cochlea

Stiffness and tension gradients of the hair cell’s tip-link complex in the mammalian cochlea

Kurbağa Hastalıkları

The role of deleterious mutations in the stability of hybridogenetic water frog complexes

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