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You searched for: Journal Genetica Remove constraint Journal: Genetica Publication year rev 7993-2007 Remove constraint Publication year rev: 7993-2007 Source 2007 v.130 no.3 Remove constraint Source: 2007 v.130 no.3
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1. A chromosomal investigation of some British Cantharidae (Coleoptera)

Author:
James, L. V.; Angus, R. B.
Source:
Genetica 2007 v.130 no.3 pp. 293-300
ISSN:
0016-6707
Subject:
Cantharidae; X chromosome; autosomes; centromeres; chromosome banding; chromosome number; females; gonads; karyotyping; larvae; males; meiosis; British Isles
Abstract:
... The karyotypes of 20 species of Cantharidae occurring in the British Isles are described and illustrated, 19 of which are hitherto unrecorded. These are Cantharis cryptica Ashe, Cantharis fusca Linnaeus, Cantharis lateralis Linnaeus, Cantharis livida Linnaeus, Cantharis nigra (Degeer), Cantharis nigricans (O. F. Müller), Cantharis pallida Goeze, Cantharis pellucida Fabricius, Cantharis rufa Linnae ...
DOI:
10.1007/s10709-006-9106-5
PubMed:
17004007

2. A statistical model for dissecting genomic imprinting through genetic mapping

Author:
Cui, Yuehua; Cheverud, James M.; Wu, Rongling
Source:
Genetica 2007 v.130 no.3 pp. 227-239
ISSN:
0016-6707
Subject:
algorithms; backcrossing; body weight; chromosome mapping; genome; genomic imprinting; humans; inbred lines; mice; plants (botany); quantitative trait loci; statistical analysis; statistical models
Abstract:
... As a result of nonequivalent genetic contribution of maternal and paternal genomes to offsprings, genomic imprinting or called parent-of-origin effect, has been broadly identified in plants, animals and humans. Its role in shaping organism's development has been unanimously recognized. However, statistical methods for identifying imprinted quantitative trait loci (iQTL) and estimating the imprinte ...
DOI:
10.1007/s10709-006-9101-x
PubMed:
16955328

3. Chromosome banding in three species of Hypsiboas (Hylidae, Hylinae), with special reference to a new case of B-chromosome in anuran frogs and to the reduction of the diploid number of 2n = 24 to 2n = 22 in the genus

Author:
Gruber, Simone Lilian; Haddad, Célio Fernando Baptista; Kasahara, Sanae
Source:
Genetica 2007 v.130 no.3 pp. 281-291
ISSN:
0016-6707
Subject:
Hypsiboas; chromosome banding; chromosome number; chromosomes; differential staining; diploidy; evolution; frogs; karyotyping; Brazil
Abstract:
... The chromosomes of hylids Hypsiboas albopunctatus, H. raniceps, and H. crepitans from Brazil were analyzed with standard and differential staining techniques. The former species presented 2n = 22 and 2n = 23 karyotypes, the odd diploid number is due to the presence of an extra element interpreted as B chromosome. Although morphologically very similar to the small-sized chromosomes of the A complem ...
DOI:
10.1007/s10709-006-9105-6
PubMed:
17031494

4. Genetic differentiation and history of populations of the Italian treefrog Hyla intermedia: lack of concordance between mitochondrial and nuclear markers

Author:
Canestrelli, Daniele; Verardi, Andrea; Nascetti, Giuseppe
Source:
Genetica 2007 v.130 no.3 pp. 241-255
ISSN:
0016-6707
Subject:
Hyla; allozymes; amphibians; cytochrome b; gene flow; genes; genetic distance; genetic variation; loci; mitochondrial DNA; secondary contact
Abstract:
... The genetic differentiation among 33 populations of the Italian treefrog, Hyla intermedia (Anura: Hylidae), was investigated using both biparentally (23 allozyme loci) and maternally (partial mitochondrial cytochrome b gene) inherited markers. Two main population groups were evidenced by both markers, located north and south of the northern Apennines. However, the pattern of differentiation betwee ...
DOI:
10.1007/s10709-006-9102-9
PubMed:
17061145

5. Genetic diversity and variety composition of cassava on small-scale farms in Uganda: an interdisciplinary study using genetic markers and farmer interviews

Author:
Balyejusa Kizito, Elizabeth; Chiwona-Karltun, Linley; Egwang, Thomas; Fregene, Martin; Westerbergh, Anna
Source:
Genetica 2007 v.130 no.3 pp. 301-318
ISSN:
0016-6707
Subject:
breeding; cassava; cultivars; disease outbreaks; disease prevalence; farmers; farmers' attitudes; farms; genetic markers; genetic variation; genotype; interviews; issues and policy; loci; markets; roots; traditional farming; villages; Uganda
Abstract:
... Cassava is a tropical crop and grown for its tuberous starchy roots. In Africa it is mainly cultivated by small-scale farmers who observe, select and name their cassava varieties based on morphology, food, social and economic interest. Here we have used an interdisciplinary approach involving farmer interviews, genetic markers and morphological descriptors to study the composition of cassava varie ...
DOI:
10.1007/s10709-006-9107-4
PubMed:
17082904

6. Isolation and characterization of sex chromosome rearrangements generating male muscle dystrophy and female abnormal oogenesis in the silkworm, Bombyx mori

Author:
Fujii, T.; Yokoyama, T.; Ninagi, O.; Kakehashi, K.; Obara, Y.; Nenoi, M.; Ishikawa, T.; Mita, K.; Shimada, T.; Abe, H.
Source:
Genetica 2007 v.130 no.3 pp. 267-280
ISSN:
0016-6707
Subject:
Bombyx mori; W chromosome; X-radiation; Z chromosome; chromosome translocation; females; flight muscles; genes; irradiation; males; meiosis; muscle development; oogenesis; random amplified polymorphic DNA technique; silkworms
Abstract:
... In deletion-mapping of W-specific RAPD (W-RAPD) markers and putative female determinant gene (Fem), we used X-ray irradiation to break the translocation-carrying W chromosome (W Ze). We succeeded in obtaining a fragment of the W Ze chromosome designated as Ze W, having 3 of 12 W-RAPD markers (W-Bonsai, W-Yukemuri-S, W-Yukemuri-L). Inheritance of the Ze W fragment by males indicates that it does no ...
DOI:
10.1007/s10709-006-9104-7
PubMed:
17031495

7. Male and female effects on sperm precedence in the giant sperm species Drosophila bifurca

Author:
Luck, Nathalie; Dejonghe, Béatrice; Fruchard, Stéphane; Huguenin, Sophie; Joly, Dominique
Source:
Genetica 2007 v.130 no.3 pp. 257-265
ISSN:
0016-6707
Subject:
Drosophila; females; males; paternity; sexual selection; sperm competition; spermatozoa
Abstract:
... Sperm competition is expected to be a driving force in sexual selection. In internally fertilized organisms, it occurs when ejaculates from more than one male are present simultaneously within the female's reproductive tract. It has been suggested that greater sperm size may improve the competitive ability of sperm, but studies provide contradictory results depending on the species. More recently, ...
DOI:
10.1007/s10709-006-9103-8
PubMed:
16955327

8. Quantitative structure analysis of genetic diversity among spring bread wheats (Triticum aestivum L.) from different geographical regions

Author:
Hai, Lin; Wagner, Carola; Friedt, Wolfgang
Source:
Genetica 2007 v.130 no.3 pp. 213-225
ISSN:
0016-6707
Subject:
Triticum aestivum; alleles; cluster analysis; genetic variation; loci; microsatellite repeats; variance; wheat; Austria; Portugal; Southern European region; Spain; Switzerland
Abstract:
... Genetic diversity in spring bread wheat (T. aestivum L.) was studied in a total of 69 accessions. For this purpose, 52 microsatellite (SSR) markers were used and a total of 406 alleles were detected, of which 182 (44.8%) occurred at a frequency of <5% (rare alleles). The number of alleles per locus ranged from 2 to 14 with an average of 7.81. The largest number of alleles per locus occurred in the ...
DOI:
10.1007/s10709-006-9008-6
PubMed:
17048074