The genetic relationships of two subspecies of striped field mice, Apodemus agrarius coreae and Apodemus agrarius chejuensis

Article Abstract:

The genetic relationships of two subspecies of striped field mice of Korea are discussed. The two species, Apodemus agrarius coreae and Apodemus agrarius chejuensis, are morphologically distinct. A. agrarius coreae was found to have more genetic diversity than the other species. Data do not support the concept that the two morphotypes are two species. The two morphotypes do not share mitochondrial haplotypes. Likely little gene flow between the two exists. The subspecies might have been separated at the time of separation of islands from the mainland. Wan Island A. agrarius coreae with large body size cluster with the large-bodied A. agrarius chejuensis based on phylogenetic analysis.

United States, South Korea, Usage, Mice, Mice (Rodents), Cladistic analysis, Island ecology

---

Silent ribosomal cistrons are located at the pairing segment of the postreductional sex chromosomes of Apodemus sylvaticus (Rodentia, Muridae)

Article Abstract:

Silent ribosomal cistrons have been found to be at the pairing segment of the postreductional sex chromosomes of Apodemus sylvaticus (Rodentia, Muridae). The karyotype of the species was analyzed by G- and C-banding, Ag-nucleolar-organizer regions (NOR)-staining and in situ hydridization, with special attention to sex chromosomes.

Spain, Ribosomes, Heredity, Meiosis, Sex chromosomes

---

B chromosomes and developmental homeostasis in the yellow-necked mouse, Apodemus flavicollis (Rodentia, Mammalia): effects on nonmetric traits

Article Abstract:

The analysis of B chromosomes on developmental homeostasis in the yellow-necked mouse, Apodemus flavicollis (Rodentia, Mammalia) is detailed. The carriers of B chromosome react differently to environmental changes than do on non-carriers and inorder to examine the effects of Bs on development stability three groups were formed.

Science & research, Chromosomes, Genetic research, Homeostasis

Similar abstracts:

• Abstracts: XKlp1, a chromosomal Xenopus kinesin-like protein essential for spindle organization and chromosome positioning
• Abstracts: Genetic analyses of two independent chlorophyll-deficient mutants identified among the progeny of a single chimeric foliage soybean plant
• Abstracts: Novel functions of nanos in downregulating mitosis and transcription during the development of the Drosophila germline
• Abstracts: Structural and functional evidence that a B chromosome in the characid fish Astyanax scabripinnis is an isochromosome
• Abstracts: Congruence between allozyme and cytochrome b gene sequence data in assessing genetic differentiation within the Iberian endemic Chondrostoma lemmingii (Pisces: Cyprinidae)

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.