Bean beetle genome about bean beetle genome sequence. A quantitative geneticanalysis of oviposition preference and larval performance on 2 hosts in the bruchid beetle, callosobruchus maculatus. Pdf seedcoat colour affects oviposition in the bean. Bruchinae, are agricultural pest insects of africa and asia that presently range throughout the tropical and subtropical world. Fryenvironmentdependent reversal of a life history tradeoff in the seed beetle callosobruchus maculatus journal of evolutionary biology, 16 2003, pp. The organisms mate once matured, and select a bean to carry out oviposition on beck and blumer, 2011. Effect of the infection of callosobruchus maculatus fab. Callosobruchus is a genus of beetles in the family chrysomelidae, the leaf beetles. This beetle has lent itself as a guinea pig for several ecological studies. These weevils cause loss of quality, quantity and seed viability.
Nov 20, 2014 the bean beetle callosobruchus maculatus, is a highly nutritious feeder that can be fed to a variety of small amphibians, geckos, invertebrates, baby chameleons and even fish. Beck, professor of pedagogy, emory university, and lawrence s. Callosobruchus maculatus bean beetle by alissa walens on. The larvae of this species feed and develop exclusively on the seed of legumes fabaceae hence the name bean beetle. Callosobruchus chinensis, the pulse beetle zoology for ias. Bruchidae, are agricultural pest insects of africa and asia that presently range throughout the tropical and subtropical world. Jan 21, 2004 we examined sexspecific and genetic variation in adult lifespan and the shape of mortality curves both within and between two populations of the seed beetle, callosobruchus maculatus, that differ. Female callosobruchus maculatus can maximize longterm. Cosmopolitan in the tropics and subtropics of the world. The sequence data are for a laboratory strain of callosobruchus maculatus that as been reared on mung beans vigna radiata for more than 20 years more than 200 generations. Bruchidae, is a cosmopolitan fieldtostore pest ranked as the principal postharvest pest of cowpea in the tropics. The flying form has a longer lifespan and lower fecundity, and the sexes are less dimorphic and can be more difficult to tell apart. This suggests that the beetles survived in the tropical ecosystem for a long time and. Callosobruchus maculatus fabricius, bruchidae seed beetle is a common postharvest pest of stored legumes in tropical and subtropical regions.
A handbook on bean beetles, callosobruchus maculatus bean. Evolutionary genetics of lifespan and mortality rates in two populations of the seed beetle, callosobruchus maculatus article pdf available in heredity 923. Inbreeding depression was examined in two longterm laboratory colonies of the seed beetle, callosobruchus maculatus fabricius, which are used frequently as models for. Ambayeba muimbakankolongo, in food crop production by smallholder farmers in southern africa, 2018. We designed a guidedinquiry experiment in which students examine the effect of evolutionary history on the potential for adaptation in the bean beetle callosobruchus maculatus, an insect model. Pdf evolutionary genetics of lifespan and mortality. Callosobruchus maculatus, chickpea, fecundity, seed coat. Assessment of resistance to the attack of bean beetle. In most animals, females live longer than males, and large individuals live longer than small individuals.
A handbook on bean beetles, callosobruchus maculatus. Callosobruchus maculatus fabricius taxonomic placing. Parr mj, tran bmd, simmonds msj, kite gc, credland pf, 1998. Fecundity and preferential oviposition by pulse beetle, callosobruchus maculatus f on chickpea cicer arietinum l. We found no indication that differences in the nutrient quality of larger and smaller host seeds influence survival in virgin and reproducing individuals or nuptial gift size in. Comparison of life history and genetic properties of cowpea bruchid. Bibliography of callosobruchus research in ecology and evolution. We examined whether such congenital differences affect the degree to which host preference can be modified by experience. We examined sexspecific and genetic variation in adult lifespan and the shape of mortality curves both within and between two populations of the. The reproductive and life cycles of the bean beetle are fully dependent on the host bean the female chooses to deposit her egg on. Bean beetles cowpea seed beetles, callosobruchus maculatus, are agricultural pest insects of africa and asia. Fumigant toxicity of essential oils against pulse beetle. Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle. Introduction to bean beetles invasive insect species threaten ecosystems throughout the world as a consequence of global climate change.
Can preference for oviposition sites initiate reproductive. Diet affects female mating behaviour in a seedfeeding beetle. Whenever two or more eggs are on a bean, development takes 40 days rather than 33 days, and only 8% of the second eggs develop even in beans with resources enough for two larvae. Two populations of the seedfeeding beetle callosobruchus maculatus, a species that produces relatively large nuptial gifts, are used to test whether female nutritional status affects mating behaviour. Bibliography of callosobruchus research in ecology and. Effect of experience on host preference in callosobruchus. It is in the subfamily bruchinae, the bean weevils. Dec 15, 2014 the bruchid beetle, callosobruchus maculatus, has been extensively used to study sexual conflict and the costs and benefits of polyandry. Fecundity and preferential oviposition by pulse beetle.
Callosobruchus chinensis, the pulse beetle zoology for. The life cycle consisted of egg, four larval instars l1, l2, l3 and l4, pupa and adult. Bambara groundnut seeds are liable to a simultaneous attack by two species of bruchidae, callosobruchus subinnotatus pic and particularly by callosobruchus maculatus f. Chromosome 10 is a sex chromosome and males are the hetergametic sex figure 3. Control over copulation duration is a potentially important generator of sexual conflict that has received little empirical attention. A closely related species, callosobruchus maculatus is found existing along with. The cowpea beetle, callosobruchus maculatus, is a serious cosmopolitan pest of pulses. Novel ovipostion discussion like comment share in this experiment it was speculated if c. The genus callosobruchus was formerly in the family bruchidae common name. Duration of behaviour patterns during oviposition by the bruchid beetle, callosobruchus maculatus. Maternal age affects offspring lifespan of the seed beetle. Callosobruchus maculatus has a karyotype of ten chromosome pairs 2n20 yadav 1971. The life cycle consisted of egg, four larval instars l 1, l 2, l 3 and l 4, pupa and adult.
Completion of life cycle takes 45 weeks and there may be 67 overlapping generations in a year. Pdf life history of flight morph females of callosobruchus. Final lab report on bean beetles bioz 152 vcu studocu. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except antarctica. There was significant difference p callosobrucrhus maculatus f. We examine both gender and body size effects on adult lifespan in two species of seed beetles callosobruchus maculatus and stator limbatus, and test whether body size differences between males and females can explain gender. Such experiences in evolutionary biology have largely been limited to microbial systems. We examine the effects of offspring genotype, maternal age and paternal age on offspring survival, development and adult lifespan in the seed beetle, callosobruchus maculatus. Female access to water, sugar and yeast are manipulated and the. Bean beetles, callosobruchus maculates, are agricultural pests that attack legumes. Life cycle of bean beetles, callosobruchus maculatus. Genetic architecture of population differences in oviposition behaviour of the seed beetle callosobruchus maculatus c. Effectiveness of datura leaf extracts and their mixtures with malathion against the cowpea beetle callosobruchus maculatus f.
The morphometric measurements revealed that the average length and breadth of egg were 0. The evolution of oviposition tactics in the bean weevil. Bruchidae to test whether they conform to predictions of an optimality model. Callosobruchus maculatus bean beetle by alissa walens on prezi. One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance eady 1991. Females lay their eggs on the surface of beans family fabaceae. Callosobruchus maculatus, emergence size, fecundity, larval host. Parr mj, tran bmd, simmonds msj, credland pf, 1998. The cowpea bruchid callosobruchus maculatus is the most important. The flying form is more common in beetles that developed in conditions of high larval density and high temperatures. We created inbred lines by carrying out fullsib matings for 5 generations.
Apr 23, 2019 the cowpea beetle, callosobruchus maculatus, is a serious cosmopolitan pest of pulses. Experiments using naive females established differences in host specificity among geographic strains of the seed beetlecallosobruchus maculatus. This larval competition confers an advantage on females that disperse eggs uniformly. Consequences of inbreeding for the cowpea seed beetle. Messina department of entomology, s225 agricultural science center north, university of kentucky, lexington, ky, usa. Dec 11, 2003 we examine the effects of offspring genotype, maternal age and paternal age on offspring survival, development and adult lifespan in the seed beetle, callosobruchus maculatus. Costs of mating and egg production in female callosobruchus chinensis. Life cycle of bean beetles, callosobruchus maculatus coleoptera. Chrysomelidae article pdf available in annales zoologici fennici 5616. Eggs are deposited oviposition singly and several days after oviposition, a beetle larva maggot burrows into the bean. Selvaraj abstract india is the largest producer and consumer of pulses and shares 35. Occasionally pupation may take place outside the grain in a cocoon made of excretory matter.
From there the species has spread, probably through. Messina department of entomology, s225 agricultural science center. The influence of egg size on offspring performance in the. The effects of copulation duration in the bruchid beetle callosobruchus maculatus martin edvardsson address correspondence to m. It causes substantial quantitative and qualitative losses manifested by seed perforation and reductions in weight, market value and germination ability of seeds. Infestation of a single species of bruchid callosobruchus maculatus f. Edvardsson, who is now at the centre for conservation and ecology, school of biosciences, university of exeter in cornwall, tremough campus, penryn, tr10 9ez, uk.
Use of high temperature to control the pulse beetle callosobruchus maculatus f. Callosobruchus maculatus has a karyotype of ten chromosome pairs 2n20. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes host plants. Current reforms in undergraduate biology education are advancing research experiences in laboratory courses. Bruchidae, the cowpea seed beetle, almost certainly evolved in that part of west africa presently known as the sahel. Life cycle and hostes of callosobruchus maculatus coleoptera. Callosobruchus maculatus starts out as a fertilized egg on the surface of a bean.
One mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance. Fox cw, bush ml, roff da, wallin wg 2004 evolutionary genetics of lifespan and mortality rates in two populations of the seed beetle callosobruchus maculatus. The female grubs shows an oviposition period, with an average of duration, of 10. Here, we examined the influence of larval nutrient quantity on the sexspecific longevity costs of reproduction in the giftgiving seed beetle callosobruchus maculatus. Smith, 1991, but this insect also illustrates some of the complexities associated with estimating the cost of reproduction. The copulatory behavior of the bruchid beetle callosobruchus maculatus may reflect a sexual conflict over copulation duration. The systematic placement of bean beetles is as follows. Heritable variation in body size is well described fox et al. Many beetles in the genus are well known as economically important pests that infest stored foodstuffs these beetles specialize on legumes of the tribe phaseoleae, which includes many types of beans used for food. Differences in adult lifespan among strains were only detected in unmated but not in. Sexual selection affects lifespan and aging in blackwell. The bean beetle callosobruchus maculatus, is a highly nutritious feeder that can be fed to a variety of small amphibians, geckos, invertebrates, baby chameleons and even fish. Biology and morphometric measurement of cowpea weevil.
Female oviposition decisions and their impact on progeny. The reproductive success of callosobruchus maculatus fabricius, the main insect pest of stored cowpea, may vary between strains of this beetle and between varieties of the host seeds. The duration of the different states of the cowpea weevils, callosobruchus maculatus f. Guide to cultivating bean beetles callosobruchus maculatus. Three types of beans are most suitable for this organism, typically. Each seed is a discrete resource package,so that much of the biology of seed beetles is similar to the biology of parasitoids. Studies on the life history and ovi positional preference of. Environmentdependent reversal of a life history tradeoff. Influence of some fatty acids on oviposition by the bruchid beetle, callosobruchus. The genus callosobruchus was formerly in the family bruchidae. Does seed size mediate sexspecific reproduction costs in the. Request pdf effect of resource quality on lifespan in the bean beetle callosobruchus maculatus backgroundquestionmethods variation in the rates of senescence among populations may be due to. Gender differences in lifespan and mortality rates in two. Control of cowpea weevil, callosobruchus maculatus f.
Dec 31, 2014 the cowpea weevil, callosobruchus maculatus f. Inbreeding depression is well documented in insects but the degree to which inbreeding depression varies among populations within species, and among traits within populations, is poorly studied in insects other than drosophila. Costs of reproduction in bean beetles bean beetles. This area is currently occupied by mali, niger, burkina faso and part of northern nigeria. Figure 3, karyotypes of bean beetles, callosobruchus maculatus, was reprinted with permission from. Introduction callosobruchus maculatus, also known as bean beetles, are insects that have a lifespan of 1014 days and are matured within 2436 hours after hatching beck and blumer, 2011. Effects of evolutionary history on adaptation in bean. Environmentdependent reversal of a life history tradeoff in. Genetic architecture of population differences in oviposition. This species also is known as the southern cowpea weevil. Seedcoat colour affects oviposition in the bean beetle, callosobruchus maculatus coleoptera.
View callosobruchus maculatus research papers on academia. They bite holes in the grains to enter inside and feed on kernel, damaging several grains in the process. The cowpea seed beetle, callosobruchus maculatus f. This figure shows a female and b male agespecific hazard rate ln. Blumer, professor of biology, morehouse college excerpted from a handbook on bean beetles, callosobruchus maculatus. A pest of pulses, cowpea, soybean, gram, pigeon pea, lablab etc. The adults do not require food or water and spend their limited lifespan one two weeks mating and laying eggs on beans. Callosobruchus is one of the genera in the family bruchidae seed weevils that is in the superfamily chrysomeloidea. They are most prevalent in africa and southeast asia. Cosmopolitan, probably of west africa origin, whence it was distributed around the globe with the trade in legumes. It is a member of the leaf beetle family, chrysomelidae, and not a true weevil.
The bruchid beetle, callosobruchus maculatus, has been extensively used to study sexual conflict and the costs and benefits of polyandry. Oviposition decisions in the seed beetle, callosobruchus. Does seed size mediate sexspecific reproduction costs in. As the beetles can actively fly, the infestation can start in the. Males have spines on their intromittent organs that puncture the female reproductive.
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