Meiotic Behavior of Chromosomes in Two Species of Coreinae (Coreidae: Heteroptera)
-
- Kaur Harbhajan
- Department of Zoology and Environmental Sciences, Punjabi University
-
- Bansal Nidhi
- Department of Zoology and Environmental Sciences, Punjabi University
この論文をさがす
抄録
Coreinae, the largest subfamily of Coreidae, is distributed worldwide but is most abundant in the tropics. Its 2 tribes, Homoeocerini and Petascelini, are specifically found in the Eastern Hemisphere. In 118 species of Coreinae cytogenetically analysed so far, male diploid number ranges from 15 to 29 and variations are reported in chiasma frequency, metaphase arrangement pattern and anaphasic movement of sex chromosomes during meiosis. In view of this, meiotic behavior of chromosomes in 2 North Indian species of Coreinae viz. Homoeocerus signatus Walker (Homoeocerini) and Petillopsis patulicollis (Walker) (Petascelini) has been described for the first time and characteristic features are discussed in the present paper.<br>The male diploid chromosome complement of H. signatus Walker is 2n=21=18A+2m+X0 while that of P. patulicollis (Walker) is 2n=28=24A+2m+X1X20. The general course of meiosis is fairly uniform and is typical for heteropteran types. During diplotene, a single chiasma per bivalent is observed in H. signatus Walker whereas 2 chiasmata are observed in 2 to 3 bivalents in P. patulicollis (Walker). In both the species, the arrangement of chromosomes at metaphase I is typical of coreid types. In P. patulicollis (Walker), however, a few metaphase I plates are observed with an alternate arrangement.
収録刊行物
-
- CYTOLOGIA
-
CYTOLOGIA 77 (3), 373-379, 2012
公益財団法人 日本メンデル協会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679086260096
-
- NII論文ID
- 10031138090
-
- NII書誌ID
- AA00622764
-
- ISSN
- 13487019
- 00114545
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可