Sex-linked effective population size in control populations, with particular reference to honeybees (Apis mellifera L.)

Moran, C.

doi:10.1007/bf00272867

Cited by 12 publications

(3 citation statements)

References 10 publications

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“…Compared with Drosophila and mosquitoes, the Hymenopteran species represented in this study are parasitic or social and both have very small effective population sizes (Moran 1984; Owen and Owen 1989; Peeters and Liebig 2000; Zayed 2004; Nolte and Schlötterer 2008; Petit and Barbadilla 2009; Alves et al 2010; Elias et al 2010; Jaffé et al 2010; Andolfatto et al 2011), although some species have reproductive females with very high fecundity and longevity (Nabholz et al 2008; Welch et al 2008). Small effective population sizes enhance the loss of genetic diversity through drift and hence could cause smaller SSR polymorphism.…”

Section: Discussionmentioning

confidence: 99%

Patterns of Evolutionary Conservation of Microsatellites (SSRs) Suggest a Faster Rate of Genome Evolution in Hymenoptera Than in Diptera

Stolle

Kidner

Moritz

2013

Genome Biology and Evolution

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Microsatellites, or simple sequence repeats (SSRs), are common and widespread DNA elements in genomes of many organisms. However, their dynamics in genome evolution is unclear, whereby they are thought to evolve neutrally. More available genome sequences along with dated phylogenies allowed for studying the evolution of these repetitive DNA elements along evolutionary time scales. This could be used to compare rates of genome evolution. We show that SSRs in insects can be retained for several hundred million years. Different types of microsatellites seem to be retained longer than others. By comparing Dipteran with Hymenopteran species, we found very similar patterns of SSR loss during their evolution, but both taxa differ profoundly in the rate. Relative to divergence time, Diptera lost SSRs twice as fast as Hymenoptera. The loss of SSRs on the Drosophila melanogaster X-chromosome was higher than on the other chromosomes. However, accounting for generation time, the Diptera show an 8.5-fold slower rate of SSR loss than the Hymenoptera, which, in contrast to previous studies, suggests a faster genome evolution in the latter. This shows that generation time differences can have a profound effect. A faster genome evolution in these insects could be facilitated by several factors very different to Diptera, which is discussed in light of our results on the haplodiploid D. melanogaster X-chromosome. Furthermore, large numbers of SSRs can be found to be in synteny and thus could be exploited as a tool to investigate genome structure and evolution.

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Section: Discussionmentioning

confidence: 99%

Patterns of Evolutionary Conservation of Microsatellites (SSRs) Suggest a Faster Rate of Genome Evolution in Hymenoptera Than in Diptera

Stolle

Kidner

Moritz

2013

Genome Biology and Evolution

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“…The transition of genes in haplodiploid species is effectively the same as that of X-linked genes in diploid species. Thus, the approximated expression for N e of X-linked genes can be applied to haplodiploid species (Moran 1984;Nomura & Takahashi 2012). Pollak (1990) derived a general formula for N e of X-linked genes as…”

Section: Kind Of Pairsmentioning

confidence: 99%

Comparison of four mating systems for maintenance of honeybee colonies in terms of the inbreeding coefficient and effective population size

Nomura

Takahashi

2018

The Journal of Animal Genetics

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Honeybees show inbreeding depression for various traits both in queens and in workers. Increased homozygosity at the complementary sex determination locus due to inbreeding produces lethality or sterility in males, and consequently reduces the productivity of the colony. In the present study, assuming a condition where mating is controlled by artificial insemination, we consider the following four mating systems for reducing the harmful effects of inbreeding in the maintenance of honeybee colonies. In the first system (RS-RM), parents of the next generation are randomly selected from the progeny pooled over colonies, and breeding groups are established by randomly dividing the selected progeny. In the second system (WS-RM), selection is carried out within a colony, and breeding groups of the next generation are established from the selected individuals in the same way as for RS-RM. In the third system (WS-RGM), after the within-colony selection as in WS-RM, males selected from the same colony are randomly assigned to each queen to establish breeding groups. The final system (WS-NGM) is similar to WS-RGM, but breeding groups are formed so as to completely avoid sib-mating. These systems are compared here by deterministic simulation in terms of the inbreeding coefficient and effective population size. Compared to RS-RM, the three systems with within-colony selection (WS-RM, WS-RGM and WS-NGM) effectively reduce the inbreeding coefficient in the initial generations. Among these three systems, WS-NGM gives the lowest initial inbreeding coefficient. Although the largest effective population size is attained under WS-RGM, many generations are required for achieving a lower inbreeding coefficient than WS-NGM. It is concluded that WS-NGM is the most highly recommended system for practical use.

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“…In recently published breeding theory (Chevalet and Cornuet, 1982a; Page and Laidlaw, 1982aand Laidlaw, , 1982bPage and Marks, 1982;Page et aL, , 1983 Moran, 1983;Moritz, 1984a), ways to minimize inbreeding and maximize genetic variability were suggested. Based on the work of Kaftanoglu and Peng (1980), Moritz (1983) Laidlaw (1982a, 1982b); Page and Marks (1982); Page et al, (1982); Page et al, (1983) and Moran (1983). The closed population artificial breeding system was modified by including a 16% contribution of semen from the best progeny of carefully selected queens from the general population.…”

Section: Introductionmentioning

confidence: 99%

Use of homogenized drone semen in a bee breeding program in Western Australia

Carrick¹,

Allan²

1989

Apidologie

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Summary — The use of mixed sperm of a large number of drones is considered to be advantageous in maintaining honey bee stock (Apis mellifera L). The new technique of using homogenized drone semen was applied in a commercially orientated breeding program in Western Australia. Over a period of 5 years the insemination success averaged 85%. Queens started oviposition 4.35 days after insemination (S.E. = 0.15; n = 467). Over 4 years brood viability ranged from 88% to 94% (S.E. = 0.66) and colonies built up very quickly. Honey production averaged 115 kg per hive in 1986 and 109 kg in 1987 (S.E. = 2.80). Longevity of queens was not appreciably different from that of queens reported in the literature that were inseminated with non-homogenized semen.

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Sex-linked effective population size in control populations, with particular reference to honeybees (Apis mellifera L.)

Cited by 12 publications

References 10 publications

Patterns of Evolutionary Conservation of Microsatellites (SSRs) Suggest a Faster Rate of Genome Evolution in Hymenoptera Than in Diptera

Patterns of Evolutionary Conservation of Microsatellites (SSRs) Suggest a Faster Rate of Genome Evolution in Hymenoptera Than in Diptera

Comparison of four mating systems for maintenance of honeybee colonies in terms of the inbreeding coefficient and effective population size

Use of homogenized drone semen in a bee breeding program in Western Australia

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