NDLI: Studies of Linkage in Populations. IX. the Effect of Altitude on X-Chromosomal Arrangement Combinations in DROSOPHILA ROBUSTA

Content Provider	PubMed Central
Author	Levitan, Max
Abstract	Data are presented concerning the gene arrangements in both arms of the X-chromosome of Drosophila robusta in eight altitudinal transects. The major change appears to be the increase of gene arrangement XL-1 (and decrease in XL, sometimes also XL-2) with increasing altitude. In each transect only one combination of XL-1 with a right arm arrangement seems primarily responsible for the increases with altitudinal change, and only one combination of XL for the decreases. In four of the transects the increasing combination appears to be XL-1.XR, XL-1.XR-2 in the other four. A substantial decrease with elevation in XL-2.XR-2 occurs only in the four areas where XL-1.XR exhibits the major increase. These results indicate that interactions between arrangements play a significant role in the adaptation of this species to altitude. The interactions appear related to the X-chromosomal linkage equilibriums in these regions. The data also suggest that the species employs its inversions in different methods of adaptation in the Appalachian Mountains from those it uses in other parts of the range.
Starting Page	751
File Format	PDF
ISSN	00166731
Journal	Genetics
Issue Number	4
Volume Number	89
Language	English
Publisher Date	1978-08-01
Access Restriction	Open
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Genetics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Studies of Linkage in Populations. IX. the Effect of Altitude on X-Chromosomal Arrangement Combinations in DROSOPHILA ROBUSTA