Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants
Twice-a-year, large-scale movement of billions of birds across latitudinal gradients is one of the most fascinating behavioral phenomena seen among animals. These seasonal voyages in autumn southwards and in spring northwards occur within a discrete time window and, as part of an overall annual itin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Genes |
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| Online Access: | https://www.mdpi.com/2073-4425/14/6/1191 |
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| author | Aakansha Sharma Sayantan Sur Vatsala Tripathi Vinod Kumar |
| author_facet | Aakansha Sharma Sayantan Sur Vatsala Tripathi Vinod Kumar |
| author_sort | Aakansha Sharma |
| collection | DOAJ |
| description | Twice-a-year, large-scale movement of billions of birds across latitudinal gradients is one of the most fascinating behavioral phenomena seen among animals. These seasonal voyages in autumn southwards and in spring northwards occur within a discrete time window and, as part of an overall annual itinerary, involve close interaction of the endogenous rhythm at several levels with prevailing photoperiod and temperature. The overall success of seasonal migrations thus depends on their close coupling with the other annual sub-cycles, namely those of the breeding, post-breeding recovery, molt and non-migratory periods. There are striking alterations in the daily behavior and physiology with the onset and end of the migratory period, as shown by the phase inversions in behavioral (a diurnal passerine bird becomes nocturnal and flies at night) and neural activities. Interestingly, there are also differences in the behavior, physiology and regulatory strategies between autumn and spring (vernal) migrations. Concurrent molecular changes occur in regulatory (brain) and metabolic (liver, flight muscle) tissues, as shown in the expression of genes particularly associated with 24 h timekeeping, fat accumulation and the overall metabolism. Here, we present insights into the genetic basis of migratory behavior based on studies using both candidate and global gene expression approaches in passerine migrants, with special reference to Palearctic-Indian migratory blackheaded and redheaded buntings. |
| first_indexed | 2024-03-11T02:25:46Z |
| format | Article |
| id | doaj.art-cae622cccc3b45f392761dd66673cad6 |
| institution | Directory Open Access Journal |
| issn | 2073-4425 |
| language | English |
| last_indexed | 2024-03-11T02:25:46Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Genes |
| spelling | doaj.art-cae622cccc3b45f392761dd66673cad62023-11-18T10:34:03ZengMDPI AGGenes2073-44252023-05-01146119110.3390/genes14061191Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine MigrantsAakansha Sharma0Sayantan Sur1Vatsala Tripathi2Vinod Kumar3IndoUS Center in Chronobiology, Department of Zoology, University of Lucknow, Lucknow 226007, IndiaIndoUS Center in Chronobiology, Department of Zoology, University of Lucknow, Lucknow 226007, IndiaDepartment of Zoology, Dyal Singh College, University of Delhi, Delhi 110003, IndiaIndoUS Center in Chronobiology, Department of Zoology, University of Delhi, Delhi 110007, IndiaTwice-a-year, large-scale movement of billions of birds across latitudinal gradients is one of the most fascinating behavioral phenomena seen among animals. These seasonal voyages in autumn southwards and in spring northwards occur within a discrete time window and, as part of an overall annual itinerary, involve close interaction of the endogenous rhythm at several levels with prevailing photoperiod and temperature. The overall success of seasonal migrations thus depends on their close coupling with the other annual sub-cycles, namely those of the breeding, post-breeding recovery, molt and non-migratory periods. There are striking alterations in the daily behavior and physiology with the onset and end of the migratory period, as shown by the phase inversions in behavioral (a diurnal passerine bird becomes nocturnal and flies at night) and neural activities. Interestingly, there are also differences in the behavior, physiology and regulatory strategies between autumn and spring (vernal) migrations. Concurrent molecular changes occur in regulatory (brain) and metabolic (liver, flight muscle) tissues, as shown in the expression of genes particularly associated with 24 h timekeeping, fat accumulation and the overall metabolism. Here, we present insights into the genetic basis of migratory behavior based on studies using both candidate and global gene expression approaches in passerine migrants, with special reference to Palearctic-Indian migratory blackheaded and redheaded buntings.https://www.mdpi.com/2073-4425/14/6/1191birdbraingene expressionheritabilitymigrationseasonal |
| spellingShingle | Aakansha Sharma Sayantan Sur Vatsala Tripathi Vinod Kumar Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants Genes bird brain gene expression heritability migration seasonal |
| title | Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants |
| title_full | Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants |
| title_fullStr | Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants |
| title_full_unstemmed | Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants |
| title_short | Genetic Control of Avian Migration: Insights from Studies in Latitudinal Passerine Migrants |
| title_sort | genetic control of avian migration insights from studies in latitudinal passerine migrants |
| topic | bird brain gene expression heritability migration seasonal |
| url | https://www.mdpi.com/2073-4425/14/6/1191 |
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