The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals
Abstract Assessing additive genetic variance is a crucial step in predicting the evolutionary response of a target trait. However, the estimated genetic variance may be sensitive to the methodology used, e.g., the way relatedness is assessed among the individuals, especially in wild populations wher...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-02-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.10981 |
| _version_ | 1827338668729171968 |
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| author | Mónika Jablonszky David Canal Gergely Hegyi Márton Herényi Miklós Laczi Gábor Markó Gergely Nagy Balázs Rosivall Eszter Szöllősi János Török László Zsolt Garamszegi |
| author_facet | Mónika Jablonszky David Canal Gergely Hegyi Márton Herényi Miklós Laczi Gábor Markó Gergely Nagy Balázs Rosivall Eszter Szöllősi János Török László Zsolt Garamszegi |
| author_sort | Mónika Jablonszky |
| collection | DOAJ |
| description | Abstract Assessing additive genetic variance is a crucial step in predicting the evolutionary response of a target trait. However, the estimated genetic variance may be sensitive to the methodology used, e.g., the way relatedness is assessed among the individuals, especially in wild populations where social pedigrees can be inaccurate. To investigate this possibility, we investigated the additive genetic variance in tarsus length, a major proxy of skeletal body size in birds. The model species was the collared flycatcher (Ficedula albicollis), a socially monogamous but genetically polygamous migratory passerine. We used two relatedness matrices to estimate the genetic variance: (1) based solely on social links and (2) a genetic similarity matrix based on a large array of single‐nucleotide polymorphisms (SNPs). Depending on the relatedness matrix considered, we found moderate to high additive genetic variance and heritability estimates for tarsus length. In particular, the heritability estimates were higher when obtained with the genetic similarity matrix instead of the social pedigree. Our results confirm the potential for this crucial trait to respond to selection and highlight methodological concerns when calculating additive genetic variance and heritability in phenotypic traits. We conclude that using a social pedigree instead of a genetic similarity matrix to estimate relatedness among individuals in a genetically polygamous wild population may significantly deflate the estimates of additive genetic variation. |
| first_indexed | 2024-03-07T19:29:12Z |
| format | Article |
| id | doaj.art-ad6fb2ac39a84ed78f3d01a859460f8c |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-03-07T19:29:12Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-ad6fb2ac39a84ed78f3d01a859460f8c2024-02-29T08:56:40ZengWileyEcology and Evolution2045-77582024-02-01142n/an/a10.1002/ece3.10981The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individualsMónika Jablonszky0David Canal1Gergely Hegyi2Márton Herényi3Miklós Laczi4Gábor Markó5Gergely Nagy6Balázs Rosivall7Eszter Szöllősi8János Török9László Zsolt Garamszegi10Evolutionary Ecology Research Group Institute of Ecology and Botany, HUN_REN Centre for Ecological Research Vácrátot HungaryDepartment of Evolutionary Ecology National Museum of Natural Sciences (MNCN‐CSIC) Madrid SpainBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryDepartment of Plant Pathology, Institute of Plant Protection Hungarian University of Agriculture and Life Sciences Budapest HungaryEvolutionary Ecology Research Group Institute of Ecology and Botany, HUN_REN Centre for Ecological Research Vácrátot HungaryBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryBehavioural Ecology Group, Department of Systematic Zoology and Ecology ELTE Eötvös Loránd University Budapest HungaryEvolutionary Ecology Research Group Institute of Ecology and Botany, HUN_REN Centre for Ecological Research Vácrátot HungaryAbstract Assessing additive genetic variance is a crucial step in predicting the evolutionary response of a target trait. However, the estimated genetic variance may be sensitive to the methodology used, e.g., the way relatedness is assessed among the individuals, especially in wild populations where social pedigrees can be inaccurate. To investigate this possibility, we investigated the additive genetic variance in tarsus length, a major proxy of skeletal body size in birds. The model species was the collared flycatcher (Ficedula albicollis), a socially monogamous but genetically polygamous migratory passerine. We used two relatedness matrices to estimate the genetic variance: (1) based solely on social links and (2) a genetic similarity matrix based on a large array of single‐nucleotide polymorphisms (SNPs). Depending on the relatedness matrix considered, we found moderate to high additive genetic variance and heritability estimates for tarsus length. In particular, the heritability estimates were higher when obtained with the genetic similarity matrix instead of the social pedigree. Our results confirm the potential for this crucial trait to respond to selection and highlight methodological concerns when calculating additive genetic variance and heritability in phenotypic traits. We conclude that using a social pedigree instead of a genetic similarity matrix to estimate relatedness among individuals in a genetically polygamous wild population may significantly deflate the estimates of additive genetic variation.https://doi.org/10.1002/ece3.10981animal modelbirdevolutionquantitative genetics |
| spellingShingle | Mónika Jablonszky David Canal Gergely Hegyi Márton Herényi Miklós Laczi Gábor Markó Gergely Nagy Balázs Rosivall Eszter Szöllősi János Török László Zsolt Garamszegi The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals Ecology and Evolution animal model bird evolution quantitative genetics |
| title | The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| title_full | The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| title_fullStr | The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| title_full_unstemmed | The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| title_short | The estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| title_sort | estimation of additive genetic variance of body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals |
| topic | animal model bird evolution quantitative genetics |
| url | https://doi.org/10.1002/ece3.10981 |
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