Cytogenetic studies on natural populations of Acrida Lata I. Local variation in the frequency of B-chromosomes

Kayano, Hiroshi; Sannomiya, Masanobu; Nakamura, K.

doi:10.1038/hdy.1970.10

Cited by 14 publications

(4 citation statements)

References 19 publications

(9 reference statements)

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“…Studies on the temporal stability of B chromosome polymorphisms have shown that some populations reach a stable frequency over periods from 6 to 9 years (Hewitt & John, 1967;Jackson & Cheung, 1967;Kayano et al, 1970). Some populations of mealy bugs (Nur, 1966) and rye (Jones & Rees, 1982) showed an increase in the number of B chromosomes over some generations, similar to that observed in P lineatus from the Mogi-Guacu river.…”

Section: Discussionmentioning

confidence: 75%

Increased B chromosome frequency and absence of drive in the fish Prochilodus lineatus

et al. 1997

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The neotropical freshwater fish species Prochilodus lineatus (Pisces, Prochilodontidae) shows 2n = 54 chromosomes plus supernumerary microchromosomes ranging in number from zero to seven among different animals. The transmission rates of B chromosomes were studied by the analysis of the parental and F1 generations in 10 controlled crosses performed with specimens from a natural population. The mean transmission rate observed for B chromosomes (kB = 0.5 11) was consistent with that expected from a regular meiotic behaviour of Bs in both sexes and with the theoretical value under a Mendelian mode of transmission (0.5). Possible explanations for the dramatic increase in B frequency observed in this population during the last 10 years are discussed, bearing in mind the current absence of drive.

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Section: Discussionmentioning

confidence: 75%

Increased B chromosome frequency and absence of drive in the fish Prochilodus lineatus

et al. 1997

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“…These data also indicate that there is no sex-specific mechanism for B accumulation in A. flavolineata . The fluctuation of B chromosome frequency in natural populations throughout the years was studied in a few species, i.e., in the grasshoppers E. plorans [Camacho et al, 2015], Myrmeleotettix maculatus [Shaw, 1983], and Acrida lata [Kayano et al, 1970], in the fish Prochilodus lineatus [Cavallaro et al, 2000], and the wasp Trypoxylon albirtase [Araújo et al, 2002]. In some species, the frequency remained constant throughout the years, while in other ones this frequency rapidly was changed, as in P. lineatus and T. albirtase caused by accumulation mechanisms or advantage for host.…”

Section: Resultsmentioning

confidence: 99%

The U2 snDNA Is a Useful Marker for B Chromosome Detection and Frequency Estimation in the Grasshopper <b><i>Abracris flavolineata</i></b>

Milani

Palacios-Gimenez²,

Cabral-de-Mello³

2017

Cytogenet Genome Res

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In this study, we describe a strategy to determine the presence of B chromosomes in the living grasshopper Abracris flavolineata by FISH using U2 snDNA as a probe in interphase hemolymph nuclei. In individuals without B chromosomes, (0B) 2 dot signals were noticed, corresponding to A complement U2 snDNA clusters. In +1B and +2B individuals, 4 or 8 additional signals were noticed, respectively. In all cases, the absence or presence of 1 or 2 B chromosomes correlated in hemolymph and in somatic or germline tissues, validating the efficiency of the marker. Our data suggest that the B chromosome of A. flavolineata is present in all somatic tissues. B-carrying individuals showed the same number of B chromosomes in germ and somatic cells, suggesting that the B is mitotically stable. The marker was used to compare B chromosome frequency in the analyzed population with a sample collected previously, in order to test for B frequency changes and differences of B chromosome prevalence among sexes, but no statistically significant differences were noticed. The identification of living animals harboring B chromosomes will be very useful in future studies of B chromosome transmission, as well as in functional studies involving RNA analysis, thus contributing to the understanding of evolutionary history and the possible role of the B chromosome in A. flavolineata.

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“…Such an operation shows that two of the populations, YN and BT, have some significant variation from year to year in the proportion of individuals with different numbers of Bchromosomes though, as we have already seen, the overall frequency of B's in these populations remains constant. Kayano et al (1970) find that in 9 out of 11 populations of the Japanese species Acrida lata the frequency of B's does not vary significantly over periods varying from 3 to 9 years. The remaining two where differences were found have both been disturbed by human activity.…”

mentioning

confidence: 88%

THE B-CHROMOSOME SYSTEM OFMYRMELEOTETTIX MACULATUS(THUNB). IV. THE DYNAMICS

Hewitt

John

1970

Evolution

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Cytogenetic studies on natural populations of Acrida Lata I. Local variation in the frequency of B-chromosomes

Cited by 14 publications

References 19 publications

Increased B chromosome frequency and absence of drive in the fish Prochilodus lineatus

Increased B chromosome frequency and absence of drive in the fish Prochilodus lineatus

The U2 snDNA Is a Useful Marker for B Chromosome Detection and Frequency Estimation in the Grasshopper <b><i>Abracris flavolineata</i></b>

THE B-CHROMOSOME SYSTEM OFMYRMELEOTETTIX MACULATUS(THUNB). IV. THE DYNAMICS

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