How to make a haploid male
Abstract Haplodiploidy has evolved repeatedly among invertebrates, and appears to be associated with inbreeding. Evolutionary biologists have long debated the possible benefits for females in diplodiploid species to produce haploid sons–beginning their population's transition to haplodiploidy–a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Oxford University Press
2019-04-01
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| Series: | Evolution Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/evl3.107 |
| _version_ | 1797766740097105920 |
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| author | Laura Ross Nicholas G. Davies Andy Gardner |
| author_facet | Laura Ross Nicholas G. Davies Andy Gardner |
| author_sort | Laura Ross |
| collection | DOAJ |
| description | Abstract Haplodiploidy has evolved repeatedly among invertebrates, and appears to be associated with inbreeding. Evolutionary biologists have long debated the possible benefits for females in diplodiploid species to produce haploid sons–beginning their population's transition to haplodiploidy–and whether inbreeding promotes or inhibits this transition. However, little attention has been given to what makes a haploid individual male rather than female, and whether the mechanism of sex determination may modulate the costs and benefits of male haploidy. We remedy this by performing a theoretical analysis of the origin and invasion of male haploidy across the full range of sex‐determination mechanisms and sib‐mating rates. We find that male haploidy is facilitated by three different mechanisms of sex determination–all involving male heterogamety–and impeded by the others. We also find that inbreeding does not pose an obvious evolutionary barrier, on account of a previously neglected sex‐ratio effect whereby the production of haploid sons leads to an abundance of granddaughters that is advantageous in the context of inbreeding. We find empirical support for these predictions in a survey of sex determination and inbreeding across haplodiploids and their sister taxa. |
| first_indexed | 2024-03-12T20:28:37Z |
| format | Article |
| id | doaj.art-c1a2aaeec1c642d5b435784721419b76 |
| institution | Directory Open Access Journal |
| issn | 2056-3744 |
| language | English |
| last_indexed | 2024-03-12T20:28:37Z |
| publishDate | 2019-04-01 |
| publisher | Oxford University Press |
| record_format | Article |
| series | Evolution Letters |
| spelling | doaj.art-c1a2aaeec1c642d5b435784721419b762023-08-02T00:16:57ZengOxford University PressEvolution Letters2056-37442019-04-013217318410.1002/evl3.107How to make a haploid maleLaura Ross0Nicholas G. Davies1Andy Gardner2Institute of Evolutionary Biology University of Edinburgh Edinburgh EH9 3JT United KingdomDepartment of Infectious Disease Epidemiology London School of Hygiene and Tropical Medicine London WC1E 7HT United KingdomSchool of Biology University of St Andrews Dyers Brae St Andrews KY16 9TH United KingdomAbstract Haplodiploidy has evolved repeatedly among invertebrates, and appears to be associated with inbreeding. Evolutionary biologists have long debated the possible benefits for females in diplodiploid species to produce haploid sons–beginning their population's transition to haplodiploidy–and whether inbreeding promotes or inhibits this transition. However, little attention has been given to what makes a haploid individual male rather than female, and whether the mechanism of sex determination may modulate the costs and benefits of male haploidy. We remedy this by performing a theoretical analysis of the origin and invasion of male haploidy across the full range of sex‐determination mechanisms and sib‐mating rates. We find that male haploidy is facilitated by three different mechanisms of sex determination–all involving male heterogamety–and impeded by the others. We also find that inbreeding does not pose an obvious evolutionary barrier, on account of a previously neglected sex‐ratio effect whereby the production of haploid sons leads to an abundance of granddaughters that is advantageous in the context of inbreeding. We find empirical support for these predictions in a survey of sex determination and inbreeding across haplodiploids and their sister taxa.https://doi.org/10.1002/evl3.107Kin selectionhaplodiploidyinbreedingmale heterogametypopulation geneticssex chromosome |
| spellingShingle | Laura Ross Nicholas G. Davies Andy Gardner How to make a haploid male Evolution Letters Kin selection haplodiploidy inbreeding male heterogamety population genetics sex chromosome |
| title | How to make a haploid male |
| title_full | How to make a haploid male |
| title_fullStr | How to make a haploid male |
| title_full_unstemmed | How to make a haploid male |
| title_short | How to make a haploid male |
| title_sort | how to make a haploid male |
| topic | Kin selection haplodiploidy inbreeding male heterogamety population genetics sex chromosome |
| url | https://doi.org/10.1002/evl3.107 |
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