Báo cáo sinh học: "Selection for acrolein tolerance in Drosophila melanogaster" docx

... conditions. Of interest, is the tendency for inversions to be eliminated in the selected lines. In fact, all inversions were lost in R24, although in RR17 only 2RNS and 3RC remained ... the tolerance to acrolein was a quantitative trait. In addition to the increase in concentration used for selection over successive generations, the t...

Ngày tải lên: 14/08/2014, 19:23

... fruits in Tunisia or manihot peelings in Congo. In each case, wild collected females were used to initiate isofemale lines. These lines were kept in the laboratory for a ... tolerance in Drosophila. Biol J Linn Soc 37 (in press) Parsons PA (1980) Parallel climatic races for tolerances to high temperature- desiccation stress in two...

Ngày tải lên: 14/08/2014, 20:20

... increase in OR in two lines selected for high and low LS, which again indicates an asymmetry in the correlations between OR and LS. Unfortunately, OR was monitored in ... Rochambeau et al, 1994) and in sheep (Bradford, 1985). Therefore, several authors have sought methods aimed at improving genetic gain in LS using indirect criteria...

Ngày tải lên: 09/08/2014, 18:22

... linearised index is therefore recommended for prac- tical implementation. Finally, the breeding programme may need to be optimised when including residual variance in the breeding goal and in ... responses in mean and variance have been investigated for mass selection [17, 30], canalising selection using a quadratic index with phenotypic information of progeny [36, 37], index selec-...

Ngày tải lên: 14/08/2014, 13:22

... used to constitute a hyperprolific line of boars [9]. The gilts purchased were all inseminated by boars of this hyperprolific line before being introduced into SL, in which they constituted, at each ... converted into selection intensities, taking into account the change in the selection criterion in G11, it appeared that selection intensity was more than doubled in the dam-daughter pat...

Ngày tải lên: 09/08/2014, 18:21

... therefore to be t aken to avoid high rates of inbreeding when selecting against the disease in such small populations. Increased inbreeding could for instance result from direct selection for ... maximizing response with constrained inbreeding in schemes with overlapping generations, Anim. Sci. 70 (2000) 373–382. [12] Henderson C.R., Applications of linear models in animal breeding,...

Ngày tải lên: 14/08/2014, 13:22

... symbols as described in the Allele symbol section. Printing the name The allele name will be in italics, or underlined if not in italics. In order to distinguish the allele ... has been obtained, then it may be named in English according to the breed, location, or population of origin. Printing the name The locus name will be in Latin...

Ngày tải lên: 14/08/2014, 20:20

... difference in mating success was found in 1 case where cardinal males were in minority (XZ = 6.13 with cardinal females). The mean mating percentages of red and cardinal males ... when their ratios increased. Thus the males which show advantage when in minority remain no longer advantageous in mating when they become common in the mati...

Ngày tải lên: 14/08/2014, 20:20

... 0.1% SDS twice for 15 min and in 1X SSC, 0.1% SDS twice for 30 min. Hybridization conditions for Southerns The hybridization was performed overnight at 65°C in 5X SSC, 5X ... has been found in any strain of D subobscura. and some of them seem to be located in the heterochromatin. Preliminary in situ hybridization results, using as...

Ngày tải lên: 14/08/2014, 20:20

... phenotype at the inflexion point (PIP) and the temperature of the inflexion point (TIP). For this character, non- plausible values were found for some lines, for example, a ... around 15 °C for wing length and 19 °C for thorax length, in agreement with previous studies [10, 28]. Reaction norms of wing/thorax ratio are given in figure...

Ngày tải lên: 09/08/2014, 18:21