دورية أكاديمية
Heterochiasmy and Sexual Dimorphism: The Case of the Barn Swallow ( Hirundo rustica , Hirundinidae, Aves).
العنوان: | Heterochiasmy and Sexual Dimorphism: The Case of the Barn Swallow ( Hirundo rustica , Hirundinidae, Aves). |
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المؤلفون: | Malinovskaya LP; Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.; Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia., Tishakova K; Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.; Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia., Shnaider EP; SibEcoCenter LLC, 630090 Novosibirsk, Russia., Borodin PM; Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.; Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia., Torgasheva AA; Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.; Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia. |
المصدر: | Genes [Genes (Basel)] 2020 Sep 24; Vol. 11 (10). Date of Electronic Publication: 2020 Sep 24. |
نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
اللغة: | English |
بيانات الدورية: | Publisher: MDPI Country of Publication: Switzerland NLM ID: 101551097 Publication Model: Electronic Cited Medium: Internet ISSN: 2073-4425 (Electronic) Linking ISSN: 20734425 NLM ISO Abbreviation: Genes (Basel) Subsets: MEDLINE |
أسماء مطبوعة: | Original Publication: Basel : MDPI |
مواضيع طبية MeSH: | Biological Evolution* , Recombination, Genetic* , Selection, Genetic* , Sex Characteristics*, Sex Chromosomes/*genetics , Swallows/*genetics, Animals ; Female ; Male |
مستخلص: | Heterochiasmy, a sex-based difference in recombination rate, has been detected in many species of animals and plants. Several hypotheses about evolutionary causes of heterochiasmy were proposed. However, there is a shortage of empirical data. In this paper, we compared recombination related traits in females and males of the barn swallow Hirundo rustica (Linnaeus, 1758), the species under strong sexual selection, with those in the pale martin Riparia diluta (Sharpe and Wyatt, 1893) , a related and ecologically similar species with the same karyotype (2N = 78), but without obvious sexual dimorphism. Recombination traits were examined in pachytene chromosome spreads prepared from spermatocytes and oocytes. Synaptonemal complexes and mature recombination nodules were visualized with antibodies to SYCP3 and MLH1 proteins, correspondingly. Recombination rate was significantly higher ( p = 0.0001) in barn swallow females (55.6 ± 6.3 recombination nodules per autosomal genome), caused by the higher number of nodules at the macrochromosomes, than in males (49.0 ± 4.5). They also showed more even distribution of recombination nodules along the macrochromosomes. At the same time, in the pale martin, sexual differences in recombination rate and distributions were rather small. We speculate that an elevated recombination rate in the female barn swallows might have evolved as a compensatory reaction to runaway sexual selection in males. |
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فهرسة مساهمة: | Keywords: MLH1; SYCP3; barn swallow; bird genome evolution; crossing over; heterochiasmy; pale martin; recombination; sand martin; sexual selection |
تواريخ الأحداث: | Date Created: 20200929 Date Completed: 20210715 Latest Revision: 20210715 |
رمز التحديث: | 20231215 |
مُعرف محوري في PubMed: | PMC7650650 |
DOI: | 10.3390/genes11101119 |
PMID: | 32987748 |
قاعدة البيانات: | MEDLINE |
تدمد: | 2073-4425 |
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DOI: | 10.3390/genes11101119 |