Unusual sex chromosome inheritance in six species of small ermine moths (Yponomeuta, Yponomeutidae, Lepidoptera)
(1988) In Hereditas 108(2). p.259-265- Abstract
First meiotic division in females and males of Yponomeuta evonyrnellus (L.), Y. cagnagellus (Hiibner). Y. rnalinellus Zeller, Y. padellus (L), Y. rorellus (Hiibner) and Y. gigas Rebel was studied in the light microscope. In the heterogametic females the sex chromosomes were found to be associated in a sex chromosome trivalent. The sex chromosome trivalent, written AA W Z, consisted of a W‐chromosome translocated to an autosome to form an A w ‐chromosome, which was paired with the homologous auto‐some and the 2‐chromosome. In the homogametic males the two Z‐chromosomes were... (More)
First meiotic division in females and males of Yponomeuta evonyrnellus (L.), Y. cagnagellus (Hiibner). Y. rnalinellus Zeller, Y. padellus (L), Y. rorellus (Hiibner) and Y. gigas Rebel was studied in the light microscope. In the heterogametic females the sex chromosomes were found to be associated in a sex chromosome trivalent. The sex chromosome trivalent, written AA W Z, consisted of a W‐chromosome translocated to an autosome to form an A w ‐chromosome, which was paired with the homologous auto‐some and the 2‐chromosome. In the homogametic males the two Z‐chromosomes were paired in a usual bivalent. The sex chromosome inheritance can be balanced in this way. The haploid chromosome number was n = 29 A + AA W Z in females and n = 30 A + ZZ in males, for all species examined. It is of interest to notice that the chromosome number of Y. rorellus earlier has been differently determined to be n = 29 for males. Especially in females the bivalents were observed to be nonhomologously associated at the telomeres during meiotic prophase.
(Less)
- author
- Nilsson, Nils-Otto ; Löfstedt, Christer LU and Dävring, Lars
- organization
- publishing date
- 1988-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Hereditas
- volume
- 108
- issue
- 2
- pages
- 7 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:84986409865
- ISSN
- 0018-0661
- DOI
- 10.1111/j.1601-5223.1988.tb00311.x
- project
- Evolutionary mechanisms of pheromone divergence in Lepidoptera
- language
- English
- LU publication?
- yes
- id
- 79823da5-da9f-49cb-8555-4415c4e6e9e9
- date added to LUP
- 2020-05-26 18:00:18
- date last changed
- 2021-06-20 06:02:15
@article{79823da5-da9f-49cb-8555-4415c4e6e9e9,
abstract = {{<p> First meiotic division in females and males of Yponomeuta evonyrnellus (L.), Y. cagnagellus (Hiibner). Y. rnalinellus Zeller, Y. padellus (L), Y. rorellus (Hiibner) and Y. gigas Rebel was studied in the light microscope. In the heterogametic females the sex chromosomes were found to be associated in a sex chromosome trivalent. The sex chromosome trivalent, written AA <sup>W</sup> Z, consisted of a W‐chromosome translocated to an autosome to form an A <sup>w</sup> ‐chromosome, which was paired with the homologous auto‐some and the 2‐chromosome. In the homogametic males the two Z‐chromosomes were paired in a usual bivalent. The sex chromosome inheritance can be balanced in this way. The haploid chromosome number was n = 29 A + AA <sup>W</sup> Z in females and n = 30 A + ZZ in males, for all species examined. It is of interest to notice that the chromosome number of Y. rorellus earlier has been differently determined to be n = 29 for males. Especially in females the bivalents were observed to be nonhomologously associated at the telomeres during meiotic prophase.</p>}},
author = {{Nilsson, Nils-Otto and Löfstedt, Christer and Dävring, Lars}},
issn = {{0018-0661}},
language = {{eng}},
month = {{01}},
number = {{2}},
pages = {{259--265}},
publisher = {{Wiley-Blackwell}},
series = {{Hereditas}},
title = {{Unusual sex chromosome inheritance in six species of small ermine moths (Yponomeuta, Yponomeutidae, Lepidoptera)}},
url = {{http://dx.doi.org/10.1111/j.1601-5223.1988.tb00311.x}},
doi = {{10.1111/j.1601-5223.1988.tb00311.x}},
volume = {{108}},
year = {{1988}},
}