farmers role in shaping coevolved genetic diversity

... primate-specific intron of the intron retention type Finally, these findings indicate that Alu elements play many important roles in shaping human evolution, presumably leading to a greater degree ... resulting in an increase in its fraction within the transcriptome [3,14,44] Our findings are in agreement with this hypothesis The Alu elements with the lowest inclusion level are the most recent insertions ... that exonized within the number of information Next, we examined the number of TEs in introns It is interesting to note that all families of TEs have a tendency to reside within intronic regions...

Ngày tải lên: 14/08/2014, 07:21

... conserve crop genetic diversity ex situ in gene banks, very little consideration has been given to conserving intraspecific genetic diversity in situ and in particular while designing protected ... distribution of genetic diversity in target species is among the major criteria in locating sites for genetic reserves In fact, the main 30 M.E Dulloo et al objective for setting up a genetic reserve ... Iraq The important point being the overriding value of genetic diversity information when available in locating sites to establish genetic reserves to ensure that the maximum genetic variation is...

Ngày tải lên: 29/03/2014, 16:20

... as biomining (Rawling, 2002) Biomining is becoming increasingly important in mining because of its lower and containable pollutant outputs comparing to thermal processes Efficacy in biomining environments ... role in shuttling from the benthos to the water surface Genetic Diversity in Microorganisms (Preston & King, 2003) Interestingly, the whole microtubule cytoskeleton of the flagellate, including ... and use of animal genetic resources, in its fields of interest since 1970s In this context, one of the main concerns of scientific research activities is conserving the genetic diversity of local...

Ngày tải lên: 28/06/2014, 08:20

... Chapter 10 Defining Genetic Diversity in the Chocolate Tree, Theobroma cacao L Grown in West and Central Africa Peter Osobase Aikpokpodion 185 Chapter 11 Genetic Diversity in Citrus 213 Aydin Uzun ... tissue in the presence of liquid nitrogen, which can avoid the oxidation of released polyphenols into 10 Genetic Diversity in Plants quinines, which in turn bind to nucleic acids and hinder the ... broader genetic diversity, AM offers three main advantages over linkage mapping: mapping resolution, allele number and time saving in establishing a marker-trait association and its application in...

Ngày tải lên: 28/06/2014, 08:20

... that genetic drift plays a big role in producing mtDNA diversity but, nonetheless, Ne does not seem to correlate with mtDNA diversity in mammals [9] Perhaps past demographic changes or the influence ... species means that there is scope for variation in mutation rate to also explain variations in within-species mtDNA diversity Indeed, Nabholz et al [7] find that substitution rate and level of polymorphism ... difficulties in properly estimating Ne by proxys such as body size or longevity At present, it would be premature to state that the role of selection in shaping levels of mtDNA diversity is more...

Ngày tải lên: 06/08/2014, 19:20

... fractions (albumins, globulins, prolamines and glutelins) were obtained, all of them were precipitated with ml of cold acetone, and the dried pellets were solubilized in buffer containing 625mM Tris-HCl ... = 0.227) in the other Fagaceae species (Danne et al 1999; Alvarez et al 2003) The characterization of the diversity in holm oak for glutelin proteins is present in Table The genetic diversity ... 27.0% of the genetic diversity of this last group was detected among populations; however, this value was higher in Cordoba with 34.8% of total genetic diversity The proportion of genetic diversity...

Ngày tải lên: 07/08/2014, 10:22

... Aranguren-Méndez et al resulting in inbreeding depression and increasing the risk of breed extinction The principal cause of the great reduction in population size of up to 80% has been the intense mechanisation ... breeds, including the four Spanish breeds mentioned in the previous paragraph The conservation of genetic variation found in these minor livestock breeds is a growing world-wide concern due to the increasing ... correspond to the Equus asinus africanus, originating from Northeast Africa, and the other one, the Equus asinus europeus, whose area of origin is the Mediterranean Basin, in particular the Balearic...

Ngày tải lên: 09/08/2014, 18:21

... priorities accounted for in the Catalonian donkey breed Conservation Programme are: 1) keeping the maximum genetic diversity, 2) obtaining the lowest possible inbreeding rate per generation The ... analysing French race and riding horses and Klemetsdal (12!, analysing Norwegian trotters, obtained an average L of 10-12 years According to Moureaux et al in their study, the reason for their intervals ... as much time as possible, leaving offspring for the next generation A minimum number of inbreeding matings should be allowed A maximum number of founder animals in the next generation represented...

Ngày tải lên: 09/08/2014, 18:22

... observed in these Indian samples Table ∂a∂ iinferred parameters for the four-population out-of-Africa model Model East Asia first India first Continent East Asia India Continent India East Asia Continent ... history of India has long intrigued anthropologists and human geneticists [3,12-14,20,34,35] A better understanding of Indian genetic diversity and population history can provide new insights into ... Humain collection in Utah, USA, with ancestry from Northern and Western Europe (CEU), Han Chinese in Beijing, China (CHB), Japanese in Tokyo, Japan (JPT), Yoruba in Ibadan, Nigeria (YRI), Chinese...

Ngày tải lên: 09/08/2014, 22:23

... available and independent data for determining genetic diversity and selecting distantly related cultivars for sequencing MF reduces the proportion of methylated repetitive elements, increasing the ... assignment Increasing this threshold led to the majority of samples not being assigned to any population At higher threshold values, the remaining points retained the same geographic patterns, indicating ... 0.01 in bold Probability values above the diagonal are based on 999 permutations have maintained this limited diversity in most populations Low genetic diversity is likely a consequence of a genetic...

Ngày tải lên: 12/08/2014, 03:21

... opportunity to investigate the genetic diversity and phylogeography of SWSV Archival liver tissues from 88 Eurasian common shrews, trapped in Finland in 1982 and in Hungary during 1997, 1999 ... recently trapped in these same sites in Finland would be extremely valuable, in providing insights into the evolutionary rate of SWSV Such studies are now underway The emerging story of previously ... sequences of SWSV strains would be required to demonstrate intralineage recombination events Apart from the above-mentioned incongruity, the inability to amplify the S segment in six of the 25 L-segment...

Ngày tải lên: 12/08/2014, 04:21

... clones, indicating a very low intra-strain genetic variability (8/8500 = 1°/°°) Overtime genetic variability To gain new insights into the overtime genetic variability of such SFVs in a same individual, ... tonkeana, obtained in this study Intra-strain genetic variability To look for the intra-strain genetic variability of such SFVs in vivo, we sequenced 10 clones of the integrase gene fragment obtained ... endocrine correlates across the ovarian cycle in semifree ranging female Tonkean macaques Am J Primatol 1998, 46(4):285-309 Ducoing AM, Thierry B: Following and joining the informed individual in...

Ngày tải lên: 13/08/2014, 09:21

... breeds (including 13 warm-blooded breeds, nine draught breeds, and nine pony breeds), the primitive Przewalski horse (used as an outgroup), and seven populations originating from the splitting of ... contribution to within-breed diversity; CB = contribution to between-breed diversity; D = aggregate diversity; CP = Cryopreservation potential; ΔGDWS = Loss or gain of gene diversity within populations ... priority, in order to preserve the maximum genetic variability Since several horse studies have used similar panels of markers [7,9,10], it would be interesting to merge the corresponding data Competing...

Ngày tải lên: 14/08/2014, 13:21

... loss or gain of gene diversity within populations when breed is removed; ΔGDBS = loss or gain of gene diversity between populations when breed is removed; ΔGDT = loss or gain of total diversity ... contribution to within-breed diversity; CB = contribution to between-breed diversity; D = aggregate diversity; CP = cryopreservation potential; ΔGDWS = loss or gain of gene diversity within populations ... Aggregate diversity: New approach combining within- and between-breed genetic diversity Livest Prod Sci 2005, 95:247-254 Caballero A, Toro MA: Analysis of genetic diversity for the management of conserved...

Ngày tải lên: 14/08/2014, 13:21

... guarantee that the farmers who maintain these populations on the NZ mainland have been able to maintain genetic diversity, especially because the flocks sizes are small compared to the original populations ... FIS is indicated * P< 0.05, ** P< 0.01, figure in bold character shows a tendency towards significance (P < 0.10); negative values indicate outbreeding while positive values indicate inbreeding; ... undergone extensive size reduction before being relocated to the mainland and it is surprising that the level of inbreeding is not higher In contrast, among the mainland Woodstock sheep, many different...

Ngày tải lên: 14/08/2014, 13:21

... (i.e continued inbreeding within a population) In the latter situation, criterion does not hold, since continued inbreeding reduces genetic diversity, even as the genetic distance increases Criterion ... remaining populations in such a way that the loss in diversity is minimised This readjustment uses the overlap in genetic diversity between breeds, increasing weights of breeds that are genetically ... only be caused by an increase in fii and/or an increase in fjj This means that in this case an increase in distance can only occur if the inbreeding coefficient in i and/or j increases This leads...

Ngày tải lên: 14/08/2014, 13:21

... total population, mainly inhabiting the hills and adjoining plains of Northeast and Central Himalayas Mongoloids in India are originally the migrant groups and their settlements in different regions ... surrounded by the Royal Kingdom of Nepal in the west, the Royal Kingdom of Bhutan in the east, China in the north with mongoloid populations and the Indian state of West Bengal in the south with both ... Mongoloids, Genetic Diversity, Genetic Distance Running title: Microsatellite Polymorphism of Sikkim Settelers *Corresponding author :National Institute of Biologicals, A 32, Sector 62 (Institutional...

Ngày tải lên: 14/08/2014, 14:21

... Tribolium castaneum INTRODUCTION The of the relationship between genetic homogeneity and intensity of comwithin a group of individuals has both theoretical and practical interest petition in modern biology ... treatments In the first, a random sample of 150 eggs fertilized by a single male parent were put together in a competition vial Thus, genetically homogeneous groups were obtained, individuals sharing ... also be obtained formally by setting up a separate x2 contingency table for every time j, with rows corresponding to the kind of group and columns to survival, and carrying out the combined test...

Ngày tải lên: 14/08/2014, 20:20

Ngày tải lên: 14/11/2014, 08:05