A mutant gene, Pale, (Pa) has been discovered in the discoglossid frog, Bombina orientalis. Breeding experiments indicate that the gene is recessive to the wild-type allele (P). Embryos, tadpoles and adults homozygous for the Pale gene are lighter in coloration than wild-type animals. Eggs produced by Pale females appear normally pigmented. Neural-retina defects were apparent in Pale tadpoles. ...

Most known species in the Physalacriaceae are saprotrophs that grow on decaying leaves and wood, and approximately 21 genera in the Physalacriaceae have been reported worldwide. During an ongoing survey of indigenous fungi in Korea, four specimens belonging to the Physalacriaceae were collected on Ulleung Island. These specimens were identified as three species based on morphological characteri...

Bu çalışma 2019-2020 yılları arasında Iğdır ekolojik koşullarında doğal olarak yetişen iğde popülasyonu içerisinde en üstün özellik gösteren genotiplerinin belirlenmesi amacıyla yürütülmüştür. Çalışmada ön seleksiyon kriterleri doğrultusunda belirlenen 124 genotipi incelenmiş ve bunlar içerisinden tartılı derecelendirme metoduna göre 22 genotip ümitvar seçilmiştir. İki yıllık ortalamalara genot...

Lithobius yuchernovisp. n. is described, based on type material from the Ola Plateau, Magadan Region, Russia. The new species is widely distributed in northeastern Siberia, ranging from the Magadan Region, until the eastern Chukot Autonomous Region and the Kamchatka Peninsula in the southeast, whence non-type material is documented. This species belongs to the subgenus Chinobius Matic, 1973 bas...

Four isolates of Theileria mutans obtained from geographically distant parts of South Africa by subinoculation of infected blood were found to be readily transmitted by the bont tick Amblyomma hebraeum. All attempts to transmit these isolates with Rhipicephalus appendiculatus were unsuccessful. Possible explanations for differences between these results and those reported by earlier workers in ...

Received: Revised: Accepted: March 08, 2010 July 07, 2010 July 10, 2010

Stingray is a type of fish included in the Elasmobranchii class that has high economic potential. This study aims to determine sex ratio, growth rate, length-weight relationship, condition factor, mortality and exploitation rate stingray (Neotrygon orientalis) PPN Brondong, Lamongan. Samples N. orientalis collected every week starting from October 1, 2019 until January 2021 weighed total body w...