Tags

Type your tag names separated by a space and hit enter

The B-chromosome polymorphism of the grasshopper Eyprepocnemis plorans in North Africa: II. Parasitic and neutralized B1 chromosomes.
Heredity (Edinb). 2002 Jan; 88(1):14-8.H

Abstract

The transmission of the B1 chromosome through females has been analysed in three Moroccan populations (Smir, SO.DE.A. and Mechra) of the grasshopper Eyprepocnemis plorans. We analysed transmission ratio (kB) variation at two levels: intra-individual (to test female age effects) and inter-individual (to test for A chromosome effects). In 81.8% of females, kB did not differ among successive egg-pods, suggesting no effect of female age. The remaining females (18.2%), showed significant differences in kB values among egg-pods, but without clear temporal patterns. In Smir, kB ranged between B elimination (0.244) and B accumulation (0.689) but there was no net accumulation (mean +/- s.e. = 0.463 +/- 0.045). In SO.DE.A., all females analysed transmitted B1 at a Mendelian rate, with a mean kBequal to 0.512 +/- 0.020. In Mechra, kB ranged from 0.341 to 0.972, with mean kB (0.575 +/- 0.029) showing a net B accumulation. All these observations suggest that the B1 chromosome could be at a drive-suppression stage in Smir and Mechra, but that it has already been neutralised in SO.DE.A.

Authors+Show Affiliations

Departamento de Genética, Facultad de Ciencias, Universidad de Granada, 18071, Granada, Spain. mbakkali@ugr.esNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11813101

Citation

Bakkali, M, et al. "The B-chromosome Polymorphism of the Grasshopper Eyprepocnemis Plorans in North Africa: II. Parasitic and Neutralized B1 Chromosomes." Heredity, vol. 88, no. 1, 2002, pp. 14-8.
Bakkali M, Perfectti F, Camacho JP. The B-chromosome polymorphism of the grasshopper Eyprepocnemis plorans in North Africa: II. Parasitic and neutralized B1 chromosomes. Heredity (Edinb). 2002;88(1):14-8.
Bakkali, M., Perfectti, F., & Camacho, J. P. (2002). The B-chromosome polymorphism of the grasshopper Eyprepocnemis plorans in North Africa: II. Parasitic and neutralized B1 chromosomes. Heredity, 88(1), 14-8.
Bakkali M, Perfectti F, Camacho JP. The B-chromosome Polymorphism of the Grasshopper Eyprepocnemis Plorans in North Africa: II. Parasitic and Neutralized B1 Chromosomes. Heredity (Edinb). 2002;88(1):14-8. PubMed PMID: 11813101.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The B-chromosome polymorphism of the grasshopper Eyprepocnemis plorans in North Africa: II. Parasitic and neutralized B1 chromosomes. AU - Bakkali,M, AU - Perfectti,F, AU - Camacho,J P M, PY - 2000/10/16/received PY - 2001/08/06/accepted PY - 2002/1/29/pubmed PY - 2002/4/24/medline PY - 2002/1/29/entrez SP - 14 EP - 8 JF - Heredity JO - Heredity (Edinb) VL - 88 IS - 1 N2 - The transmission of the B1 chromosome through females has been analysed in three Moroccan populations (Smir, SO.DE.A. and Mechra) of the grasshopper Eyprepocnemis plorans. We analysed transmission ratio (kB) variation at two levels: intra-individual (to test female age effects) and inter-individual (to test for A chromosome effects). In 81.8% of females, kB did not differ among successive egg-pods, suggesting no effect of female age. The remaining females (18.2%), showed significant differences in kB values among egg-pods, but without clear temporal patterns. In Smir, kB ranged between B elimination (0.244) and B accumulation (0.689) but there was no net accumulation (mean +/- s.e. = 0.463 +/- 0.045). In SO.DE.A., all females analysed transmitted B1 at a Mendelian rate, with a mean kBequal to 0.512 +/- 0.020. In Mechra, kB ranged from 0.341 to 0.972, with mean kB (0.575 +/- 0.029) showing a net B accumulation. All these observations suggest that the B1 chromosome could be at a drive-suppression stage in Smir and Mechra, but that it has already been neutralised in SO.DE.A. SN - 0018-067X UR - https://www.unboundmedicine.com/medline/citation/11813101/The_B_chromosome_polymorphism_of_the_grasshopper_Eyprepocnemis_plorans_in_North_Africa:_II__Parasitic_and_neutralized_B1_chromosomes_ L2 - http://dx.doi.org/10.1038/sj.hdy.6800002 DB - PRIME DP - Unbound Medicine ER -