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1.
José Gabriel Segarra-Moragues Gabriela Gleiser Fernando González-Candelas 《Conservation Genetics》2008,9(4):1059-1062
An enrichment protocol was used to isolate and characterize microsatellite loci in Acer opalus, a Mediterranean tree species. Highly polymorphic microsatellite loci were required for paternity analyses in a population
of this species. Eight microsatellite loci were amplified and a total of 87 alleles were detected in a sample of 142 individuals
from one population, allowing the identification of each individual with a unique multilocus genotype. The paternity exclusion
probabilities varied from 0.261 for locus Aop820 to 0.806 for locus Aop450, and the parent-pair exclusion probabilities varied
from 0.433 for Aop820 to 0.940 for Aop450. The cumulative probabilities of exclusion for paternity and parentage of the eight
loci were both higher than 0.999, supporting the usefulness of these microsatellite loci for future paternity and parentage
analyses in A. opalus. Cross-species transferability was also assayed, supporting their potential use in other eight Acer species. 相似文献
2.
Seven-band grouper (Epinephelus septemfasciatus) is a commercially important fishery species. Sixty-six microsatellite loci were isolated from a dinucleotide-enriched genomic
library of E. septemfasciatus. Twelve of these loci were polymorphic in a test population with alleles per locus ranging from two to five, and observed
and expected heterozygosities per locus from 0.04 to 1.00 and from 0.28 to 0.76, respectively. Three loci significantly deviated
from Hardy–Weinberg equilibrium and no significant linkage disequilibrium was found between pairs of loci after Bonferroni
correction. Cross-species amplification of these polymorphic microsatellite loci was performed in additional two related species.
These polymorphic microsatellite loci would be useful for investigating genetic resource of E. septemfasciatus and other related species.
Lili Zhao and Changwei Shao have contributed equally. 相似文献
3.
The Australian freshwater cod genus, Maccullochella is represented by three species: Murray cod, M. peelii
peelii, eastern freshwater cod, M. ikei, and trout cod, M.macquariensis. Seven novel microsatellite loci from M. ikei and six previously published loci from M. peelii peelii were tested on wild populations of Murray, eastern and trout cod. Levels of polymorphism varied between species with 13 loci
polymorphic in Murray cod, 9 in trout cod and 7 in eastern cod. Observed heterozygosities ranged from 0.053 to 0.842. This
suite of microsatellite loci will facilitate future studies of the genetic status of wild and hatchery bred populations of
Maccullochella. 相似文献
4.
Song-Lin Chen Lili Zhao Chang-Wei Shao Xiaolin Liao Yong-Sheng Tian 《Conservation Genetics》2009,10(4):1101-1103
Black sea bass (Centropristis striata) is an economically important serranid species. A number of 39 microsatellite loci were isolated from two enriched genomic
library of C. striata. Eleven of these loci were polymorphic in a test population with alleles per locus ranging from 3 to 8, and observed and
expected heterozygosities per locus from 0.26 to 1.00 and from 0.61 to 0.84, respectively. Four loci significantly deviated
from Hardy–Weinberg equilibrium after Bonferroni correction and no significant linkage disequilibrium was found between pairs
of loci. Cross-species amplification of these polymorphic microsatellite loci was performed in additional two related species.
These polymorphic microsatellite loci would be useful for investigating genetic resource of C. striata and other related species. 相似文献
5.
Twenty enzyme loci were examined in the diploid species ofTriticum andAegilops for allelic variation by starch gel electrophoresis. SectionSitopsis, including the five species,Ae. speltoides, Ae. lingissima, Ae. sharonensis, Ae. bicornis andAe. searsii form a close subgroup withAe. speltoides slightly removed from the others.T. monococcum s. lat., was found to be closest to the species of theSitopsis group.Ae. comosa, Ae. umbellulata andAe. uniaristata form a second subgroup withAe. caudata most closely related to these species.Ae. squarrosa appears almost equally related to all of the species, showing no special affinity for any one species group. Nineteen out of twenty loci examined were polymorphic with a mean of 6.7 alleles per locus. Species could be, for most loci, characterized by the presence of predominant alleles. A conspicious genetic characteristic ofTriticum-Aegilops is the sharing of these predominant alleles between species. Within species variation is characterized by a diffuse distribution of secondary alleles. 相似文献
6.
Andres Aguilar 《Environmental Biology of Fishes》2006,76(2-4):329-339
Natural selection has been invoked to explain the observed geographic distribution of allozyme allele frequencies for a number of teleost species. The effects of selection on allozyme loci in three species of Pacific salmon were tested. A simulation-based approach to estimate the null distribution of population differentiation (F
ST) and test for F
ST outliers was used. This approach showed that a majority of allozyme loci conform to neutral expectations predicted by the simulation model, with relatively few F
ST outliers found. No consistent F
ST outlier loci were found across species. Analysis of population sub-groups based on geography and genetic identity reduced the number of outlier loci for some species, indicating that large geographic groups may include genetically divergent populations and/or that there is geographic heterogeneity in selection pressure upon allozyme loci. Two outlier allozyme loci found in this analysis, lactate dehydrogenase-B and malic enzyme, have been shown to be influenced by selection in other teleost species. This approach is also useful in identifying allozyme loci (or other genetic markers) that meet assumptions for population genetic study. 相似文献
7.
In order to study hybridisation, taxonomic boundaries and phylogeography in the genus Pseudopanax (Araliaceae), we developed seven novel microsatellite loci from enriched genomic libraries of P. lessonii and P. crassifolius. These loci were characterised in 16 individuals from a single population of P. crassifolius, and displayed 2–11 alleles per locus. Observed heterozygosities ranged from 0.063 to 0.688. Most loci were polymorphic in
the closely related Pseudopanax species, and several loci amplified widely across the Araliaceae. 相似文献
8.
Eight microsatellite markers were developed for the endangered grassland perennial herb Vincetoxicum atratum. The number of alleles ranged from 4 to 14, and the expected heterozygosities were from 0.575 to 0.933 in a population of
V. atratum. Five of the eight loci did not significantly deviated from the Hardy–Weinberg equilibrium. All eight loci were tested for
cross-species amplification in five other species of Vincetoxicum in Japan. These microsatellite loci will be useful for conservation genetics of V. atratum and other species of Vincetoxicum. 相似文献
9.
Lili Zhao Changwei Shao Xiaolin Liao Hongyu Ma Xuechun Zhu Songlin Chen 《Conservation Genetics》2009,10(3):743-745
Yellow grouper (Epinephelus awoara) is a commercially important marine fish species. A dinucleotide-enriched genomic library of E. awoara was constructed using the method of FIASCO. Twelve loci were polymorphic in a test population with alleles per locus ranging
from two to eight, and observed and expected heterozygosities per locus from 0.13 to 1.00 and from 0.20 to 0.86, respectively.
Five loci significantly deviated from Hardy–Weinberg equilibrium and no significant linkage disequilibrium was found between
pairs of loci. Cross-species amplification of these polymorphic microsatellite loci was performed in additional two related
species. These polymorphic microsatellite loci would be useful for investigating genetic diversity of E. awoara and related species.
L. Zhao and C. Shao have contributed equally to this work. 相似文献
10.
Karrigan Börk A. Drauch J. A. Israel J. Pedroia J. Rodzen B. May 《Conservation Genetics》2008,9(4):973-979
Sixty-eight primer sets for microsatellite loci were developed from microsatellite motif enriched genomic libraries of pooled
DNA from the polyploid green and white sturgeon (Acipenser medirostris and A. transmontanus). Four individuals from each species were screened for polymorphism at these loci. Forty-eight loci amplified in both species,
and some exhibited species-specific amplification for white or green sturgeon (8 and 12 loci, respectively). The number of
alleles per locus ranged from one to 12. At least 68% of the green and 65% of the white sturgeon loci we developed are polysomic. 相似文献
11.
Belén G. Pardo Almudena López Paulino Martínez Carmen Bouza 《Conservation Genetics》2007,8(5):1243-1245
The long-snouted seahorse Hippocampus guttulatus is one of the two European seahorse species. We describe the isolation of the first 12 microsatellite loci in this threatened
species. These new markers were tested in non-invasive samples of 32 seahorses from NW Spain. The number of alleles ranged
from 2 to 15 (mean: 6.3) and expected heterozygosity from 0.031 to 0.912 (mean: 0.500). All loci conformed to Hardy–Weinberg
expectations and no genotypic disequilibrium was observed between any pair of loci. The theoretical exclusion probabilities
for this set of loci, when no parental information exists or when one parent is known, were 0.973 and 0.998, respectively.
This study indicates the usefulness of these novel loci for population analysis and kinship studies in Hippocampus guttulatus. Their potential application is extended to the other European seahorse species, since all loci were successfully cross-amplified
in H. hippocampus. 相似文献
12.
Yong-Sheng Tian Gui-Dong Miao Chang-Wei Shao Xiao-Lin Liao Song-Lin Chen 《Conservation Genetics》2009,10(4):1041-1043
Stone flounder (Kareius bicoloratus) is a rare fish species in China. Here, we reported 11 polymorphic microsatellite loci isolated from a repeat-enriched genomic
library of stone flounder. The number of alleles, observed and expected heterozygosity per locus in 32 individuals ranged
from 3 to 6, from 0.1613 to 0.8667 and from 0.1549 to 0.7932, respectively. Two loci significantly deviated from Hardy–Weinberg
equilibrium after Bonferroni correction and no significant linkage disequilibrium between pairs of loci was found. Cross-species
amplification of these microsatellite loci in additional three fish species was performed. These polymorphic microsatellite
loci would be useful for investigating genetic population structure and construction of genetic linkage map in Kareius bicoloratus.
Yong-Sheng Tian and Gui-Dong Miao are contributed equally. 相似文献
13.
Ashley MV Wilk JA Styan SM Craft KJ Jones KL Feldheim KA Lewers KS Ashman TL 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》2003,107(7):1201-1207
The objectives of the present study were to develop microsatellite markers for the wild strawberry, Fragaria virginiana, to evaluate segregation patterns of microsatellite alleles in this octoploid species, and assess genetic variability at microsatellite loci in a wild population. A genomic library was screened for microsatellite repeats and several PCR primers were designed and tested. We also tested the use of heterologous primers and found that F. virginiana primers amplified products in cultivated strawberry, Fragaria × ananassa Duch. and Fragaria chiloensis. Similarly, microsatellite loci developed from cultivated strawberry also successfully amplified F. virginiana loci. We investigated four microsatellite loci in detail, three developed from F. virginiana and one from cultivated strawberry. A survey of 100 individuals from a population of F. virginiana in Pennsylvania demonstrated high heterozygosities (He or gene diversity ranged from 0.80 to 0.88 per locus) and allelic diversity (12–17 alleles per locus), but individual plants had no more than two alleles per locus. Segregation patterns in parents and progeny of two controlled crosses at these four loci were consistent with disomic Mendelian inheritance. Together these findings suggest that the genome of F. virginiana is "highly diploidized" and at least a subset of microsatellite loci can be treated as codominant, diploid markers. Significant heterozygote deficiencies were found at three of the four loci for hermaphroditic individuals but for only one locus among females in this gynodioecious species.Communicated by J. Dvorak 相似文献
14.
Obscure puffer (Takifugu obscurus) is an anadromous fish species in China. Here, we reported 10 polymorphic microsatellite loci isolated from a dinucleotide-enriched
genomic library of T. obscurus. The number of alleles, observed and expected heterozygosity per locus in 30 individuals ranged from four to 10, from 0.57
to 0.86 and from 0.68 to 0.90, respectively. Three loci significantly deviated from Hardy–Weinberg equilibrium after Bonferroni
correction and no significant linkage disequilibrium between pairs of loci was found. Cross-species amplification of these
microsatellite loci in additional three fish species was performed. These polymorphic microsatellite loci would be useful
for investigating genetic population structure and construction of genetic linkage map in T. obscurus. 相似文献
15.
An enrichment protocol was used to isolate and characterise microsatellite loci in Rosmarinus officinalis, a Mediterranean chamephyte. Twelve microsatellite loci were characterised and amplified a total of 117 alleles in a sample
of 30 individuals from one population, with an average of 9.75 alleles per locus. Observed heterozygosities ranged from 0.333
to 0.900. Cross-species transferability was also assayed in the two other species of the genus. The cumulated probabilities
of exclusion for paternity and parentage of the 12 loci were of 0.999971 and 1, respectively, supporting the usefulness of
these microsatellite loci for parentage analyses. Nine out of 12 microsatellite loci amplified in the two species and were
polymorphic detecting a total of 49 and 45 in R. eriocalyx and R. tomentosus, respectively. Twenty-two alleles were exclusive of R. eriocalyx and 12 of R. tomentosus, additionally, three alleles were shared between these two species but were otherwise absent in the analysed individuals
of R. officinalis. In total, this set of markers amplified 154 different microsatellite alleles, supporting their usefulness to conduct population
genetic, reproductive biology and hybridisation studies in Rosmarinus. 相似文献
16.
Sinadoxa corydalifolia is the only species of Sinadoxa (Adoxaceae) with the aberrant morphology. This species has become extremely endangered in the Qinghai-Tibetan Plateau. To
provide a population-level genetic profile for investigation and conservation of genetic diversity of this species, we developed
10 new microsatellite loci for this species by the combining biotin capture method. About 31 microsatellites were screened
from the library, 10 of the screened microsatellites are polymorphic. The number of alleles per locus in 18 individuals ranged
from 3 to 11, expected heterozygosity and observed heterozygosity ranged from 0.3071 to 0.6243 and from 0.1675 to 0.4357,
respectively. We further performed cross-priming tests of these primers in another species of the Adoxaceae: Adoxa moschatellina and found 9 of 10 successfully amplified the targeted sequences. These newly developed loci provide a useful tool to investigate
the genetic diversity and design the conversation measures of S. corydalifolia and study the genetic divergence and the initial speciation pattern between it and the related species in the Adoxaceae. 相似文献
17.
J. Lu B. Pickersgill 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1993,85(5):550-560
Summary
Arachis hypogaea (peanut or groundnut) is an AABB allotetraploid whose precise ancestry is not yet clear. Its closest diploid relatives are the annual and perennial wild species included with it in the section Arachis. Variation in these species for 11 different enzymes was studied by starch-gel electrophoresis. Differences attributed to at least 13 genetic loci were found among eight enzymes, while three enzymes appeared uniform throughout the section. Values for Nei's genetic distance were calculated for all pairs of species and were used to estimate relationships. All diploid species, apart from two whose validity had previously been questioned, could be distinguished by their overall zymotypes, but few contained unique alleles. When species were grouped by their mean genetic distances, they formed two clusters, which agreed reasonably well with the division of the section into annual versus perennial species. The single B-genome species was an outlier within the annual group. A. hypogaea showed fixed heterozygosity at four loci (in ssp. hypogaea) or six loci (in ssp. fastigiata), which agrees with previous conclusions that the peanut is an allotetraploid. None of the diploids included in this survey could be conclusively identified as donors of either the A or the B genome to the tetraploids. The two subspecies of A. hypogaea differed consistently in two of the thirteen putative loci studied. This may call into question the simple hypothesis that A. hypogaea originated from just two diploid species. 相似文献
18.
O. P. Rajora B. P. Dancik M. Aleksiuk 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1991,81(6):729-734
Summary Isozymes of peroxidase (PER) and superoxide dismutase (SOD) were analyzed in vegetative buds or very young leaves of seven species and two interspecific hybrids of Populus, in progenies of seven controlled crosses of three Populus species, and in needles of five Picea species and one putative hybrid. One to three PER, and one or two SOD zones of activity were observed. Electrophoretic mobility (EM) and banding phenotypes of isozymes of one PER locus were identical to those of one SOD locus in vegetative buds of five Populus species and hybrid. In leaves of the four Populus species and hybrid and progenies of controlled crosses, EM and phenotypes of isozymes of two PER loci were identical to those of two SOD loci. In Picea species, EM of isozymes of the only SOD locus was somewhat similar but not identical to that of one PER locus, and isozyme phenotypes of all individuals at the SOD locus were not identical to those at a PER locus. Chi-square tests verified the single-gene Mendelian control of the segregating allozyme variants at each of Per-L1 and Sod-1 in the three Populus species. The results of joint two-locus segregation tests indicated a very tight linkage and no recombination between Per-L1 and Sod-1 in three Populus species. Genes coding for isozymes of one or two PER loci are either presumably the same as, or very tightly linked to, the genes coding for isozymes of one or two SOD loci in the Populus species. 相似文献
19.
J. A. Galarza R. Boulay X. Cerdá C. Doums P. Federici H. Magalon T. Monnin C. Rico 《Conservation Genetics》2009,10(3):519-521
Eight polymorphic microsatellite loci were isolated and characterized for Aphaenogaster senilis, a common ant species distributed in the Western Mediterranean. Characterization of 15 individuals form southern Spain showed
moderate to high allelic diversity ranging from 2 to 9 alleles per locus. Cross-species tests on 10 individuals of A. iberica, A. gibbosa, A. subterranea and Messor maroccanus revealed successful amplification for most loci. This set of markers can be useful for population genetic studies and might
even prove useful in other phylogenetically close species of the subfamily Myrmicinae. 相似文献
20.
Sasa senanensis is a dwarf bamboo species distributed on the floors of cool temperate forests in Japan and adjacent regions. We isolated
eight polymorphic microsatellite loci from this species. The number of alleles ranged from two to eight and the observed heterozygosity
per locus from 0.13 to 0.74. Seven of the eight loci were also polymorphic in Sasa nipponica. Most of these markers were successfully amplified in other dwarf bamboo species. These markers will be useful for investigating
clonal structure and population genetics in some dwarf bamboo species. 相似文献