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Linkage analysis of seventeen loci in poeciliid fish (genus Poeciliopsis)


, : Linkage analysis of seventeen loci in poeciliid fish (genus Poeciliopsis). Journal of Heredity 73(1): 19-23

Electrophoretic surveys of genetic variation reveal considerable levels of polymorphism in most species. Only rarely are loci polymorphic in natural populations examined for their linkage relationships. Using inter- and intraspecific crosses, the linkage relationships of 17 loci were examined in 4 spp. of fish in the genus Poeciliopsis P. monacha, P. viriosa, P. lucida and P. occidentalis . Five loci are in 1 linkage group; 2 loci are in a 2nd group. The remaining 10 loci assort independently. Finding 5 of 17 loci in a single linkage group is unexpected since there is no reason to expect that polymorphic loci would be clustered in an organism with a large number of chromosomes in the haploid set. Comparisons of the genetic map of Poeciliopsis with the maps in the related genera Xiphophorus and Poecilia indicate that the above linkage relationships were conserved during the divergence of 3 genera of poeciliid fish.

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PMID: 7069186


Other references

Zimmermann, S., 1971: Ergebnisse zoologischer Sammelreisen in der Turkei Gattung Trichodes Herbst (Cleridae, Coleoptera). Annln naturh Mus Wien, 75: 591-625

Dror, A.A.; Lenz, D.R.; Shivatzki, S.; Cohen, K.; Ashur-Fabian, O.; Avraham, K.B., 2015: Atrophic thyroid follicles and inner ear defects reminiscent of cochlear hypothyroidism in Slc26a4-related deafness. Thyroid hormone is essential for inner ear development and is required for auditory system maturation. Human mutations in SLC26A4 lead to a syndromic form of deafness with enlargement of the thyroid gland (Pendred syndrome) and non-syndromic deafn...

Sperr, W.; Tschamer, H., 1969: Surface conditions of human teeth and their importance in dentistry. Stoma 22(4): 201-207

Krishnamurthy R.V.; Lovan Norman A., 2001: Paleoclimatic inferences from the D/ H ratio of bulk organic matter in lake sediments. We have carried out multiple isotope measurements on organic matter extracted from a sediment core from Lake Winnebago in Wisconsin, USA. Based on radiocarbon dates of the organic fraction, the record spans the past 12k years. The C/N ratio averag...

Tsuji, S.; E.A., 1962: Studies on the function of hypothalamichypophyseal system. Japanese Jour Med 1(1): 76-78

Blane, C.E.; Gagnadoux, M.F.; Brunelle, F.; Argyropoulou, M.; Lallemand, D., 1993: Old renal transplants examined by Doppler ultrasonography. Twenty-four ultrasonography (US) studies of 21 renal transplants that had been in place for 1 to 19 (median 3) years were evaluated. The absolute resistive indices (RIs) determined during Doppler US at various arterial levels and the differences i...

Santos, E., 1985: Program of early stimulation: fixing the attention of (mongolian) children with Down's syndrome. Actas Luso-Espanolas de Neurologia, Psiquiatria Y Ciencias Afines 13(2): 83-90

Edwards, J.; Salib, S.; Thomson, F.; Pascoe, I., G., 2000: The impact of Phaeomoniella chlamydospora infection on the grapevines physiological response to water stress - Part 1 Zinfandel. Phaeomoniella chlamydospora is a vascular pathogen that colonises the xylem tissues of the grapevine. It is associated with Petri disease, which is often considered to be 'stress-related'. In glasshouse experiments using Zinfandel, stom...

Olivier, G.W.J.; Sahm, U.G.; Branch, S.K.; Moss, S.H.; Pouton, C.W., 1993: Structure-activity studies of alpha-MSH using single amino acid substitution by alanine. Pharmaceutical Research (New York) 10(10 SUPPL ): S97

Gallien, L., 1949: Proboscidosaccus enigmaticus nov. g. nov. sp. parasite de Mactra solida L. Bulletin de la Societe Zoologique de France, 74: 322-326