Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae)
Studies on insular organisms provide an important framework for investigating patterns of genetic differentiation and reproductive isolation. By focusing on populations of the same species, we have the opportunity to study the mechanisms operating during the earliest stages of speciation, as reprodu...
Gespeichert in:
Veröffentlicht in: | Plant systematics and evolution 2021-06, Vol.307 (3), Article 36 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | 3 |
container_start_page | |
container_title | Plant systematics and evolution |
container_volume | 307 |
creator | Pinheiro, Fábio Veiga, Giovanna Seleghin Chaves, Cleber Juliano Neves da Costa Cacossi, Tami da Silva, Clarisse Palma |
description | Studies on insular organisms provide an important framework for investigating patterns of genetic differentiation and reproductive isolation. By focusing on populations of the same species, we have the opportunity to study the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the genetic differentiation and the evolution of early stages of intrinsic postmating reproductive isolation between continental and insular populations of
Epidendrum fulgens
, a neotropical orchid distributed in southeastern Brazil. Genetic diversity and structure were estimated for both nuclear and plastid markers by using genetic differentiation measures and model-based assignment test. Furthermore, two components of reproductive isolation were examined by analyzing fruit set and seed viability in interpopulation crosses. Strong plastid genetic structure (
F
ST
= 0.679) was found between insular and remaining populations, indicating that
E
.
fulgens
reduced gene flow via seed dispersal, although significant nuclear genetic structure was lower (
D
ST
= 0.179), likely due to the smaller effective population size of the plastid genome. Significant differences in seed viability between self- and cross-pollinated plants were found, indicating the occurrence of inbreeding depression in all populations. Seed viability was significantly lower in crosses between insular and remaining populations, suggesting a late postzygotic reproductive barrier due to low migration associated with genetic drift (i.e., bottleneck) and its consequences. Our results confirm the importance of islands as drivers for populational differentiation and suggest a central role for outbreeding depression during the early stages of lineage diversification. |
doi_str_mv | 10.1007/s00606-021-01759-y |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2519148286</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2519148286</sourcerecordid><originalsourceid>FETCH-LOGICAL-c319t-44f01f674bf8c1fef163df9055d84417c18a58ec9a538d4c653d63f56b7667173</originalsourceid><addsrcrecordid>eNp9kEtLxDAUhYMoOD7-gKuAG11Uc9smaZcivkAYEF2HTHIzRmpak1aZnT_dzIzgztWBw3fO5R5CToBdAGPyMjEmmChYCQUDydtitUNmIIAXAoDtkhmrZFOUopX75CClN5YpUcsZ-X7CIfZ2MqP_RLrQMXqMiepg6RIDjt5Q653DiGH0evR9oAscvxADNX22QvZ1t-F96tYy9MPUbchEe0dvBm8x2Di9Uzd1uTPRs3k0r95qgxrPj8ie013C4189JC-3N8_X98Xj_O7h-uqxMBW0Y1HXjoETsl64xoBDB6KyrmWc26auQRpoNG_QtJpXja2N4JUVleNiIYWQIKtDcrrtze9-TJhG9dZPMeSTquTQQt2UjchUuaVM7FOK6NQQ_buOKwVMrZdW26VVXlptllarHKq2oZThsMT4V_1P6ge4LIQj</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2519148286</pqid></control><display><type>article</type><title>Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae)</title><source>SpringerNature Journals</source><creator>Pinheiro, Fábio ; Veiga, Giovanna Seleghin ; Chaves, Cleber Juliano Neves ; da Costa Cacossi, Tami ; da Silva, Clarisse Palma</creator><creatorcontrib>Pinheiro, Fábio ; Veiga, Giovanna Seleghin ; Chaves, Cleber Juliano Neves ; da Costa Cacossi, Tami ; da Silva, Clarisse Palma</creatorcontrib><description>Studies on insular organisms provide an important framework for investigating patterns of genetic differentiation and reproductive isolation. By focusing on populations of the same species, we have the opportunity to study the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the genetic differentiation and the evolution of early stages of intrinsic postmating reproductive isolation between continental and insular populations of
Epidendrum fulgens
, a neotropical orchid distributed in southeastern Brazil. Genetic diversity and structure were estimated for both nuclear and plastid markers by using genetic differentiation measures and model-based assignment test. Furthermore, two components of reproductive isolation were examined by analyzing fruit set and seed viability in interpopulation crosses. Strong plastid genetic structure (
F
ST
= 0.679) was found between insular and remaining populations, indicating that
E
.
fulgens
reduced gene flow via seed dispersal, although significant nuclear genetic structure was lower (
D
ST
= 0.179), likely due to the smaller effective population size of the plastid genome. Significant differences in seed viability between self- and cross-pollinated plants were found, indicating the occurrence of inbreeding depression in all populations. Seed viability was significantly lower in crosses between insular and remaining populations, suggesting a late postzygotic reproductive barrier due to low migration associated with genetic drift (i.e., bottleneck) and its consequences. Our results confirm the importance of islands as drivers for populational differentiation and suggest a central role for outbreeding depression during the early stages of lineage diversification.</description><identifier>ISSN: 0378-2697</identifier><identifier>EISSN: 1615-6110</identifier><identifier>EISSN: 2199-6881</identifier><identifier>DOI: 10.1007/s00606-021-01759-y</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Biomedical and Life Sciences ; Differentiation ; Divergence ; Epidendrum ; Evolution ; Fruit set ; Gene flow ; Genetic diversity ; Genetic drift ; Genetic structure ; Genomes ; Inbreeding ; Inbreeding depression ; Life Sciences ; Original Article ; Outbreeding ; Plant Anatomy/Development ; Plant Ecology ; Plant Sciences ; Plant Systematics/Taxonomy/Biogeography ; Population number ; Populations ; Reproductive isolation ; Seed dispersal ; Seeds ; Speciation ; Viability</subject><ispartof>Plant systematics and evolution, 2021-06, Vol.307 (3), Article 36</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2021</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-44f01f674bf8c1fef163df9055d84417c18a58ec9a538d4c653d63f56b7667173</citedby><cites>FETCH-LOGICAL-c319t-44f01f674bf8c1fef163df9055d84417c18a58ec9a538d4c653d63f56b7667173</cites><orcidid>0000-0003-3243-2652</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00606-021-01759-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00606-021-01759-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Pinheiro, Fábio</creatorcontrib><creatorcontrib>Veiga, Giovanna Seleghin</creatorcontrib><creatorcontrib>Chaves, Cleber Juliano Neves</creatorcontrib><creatorcontrib>da Costa Cacossi, Tami</creatorcontrib><creatorcontrib>da Silva, Clarisse Palma</creatorcontrib><title>Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae)</title><title>Plant systematics and evolution</title><addtitle>Plant Syst Evol</addtitle><description>Studies on insular organisms provide an important framework for investigating patterns of genetic differentiation and reproductive isolation. By focusing on populations of the same species, we have the opportunity to study the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the genetic differentiation and the evolution of early stages of intrinsic postmating reproductive isolation between continental and insular populations of
Epidendrum fulgens
, a neotropical orchid distributed in southeastern Brazil. Genetic diversity and structure were estimated for both nuclear and plastid markers by using genetic differentiation measures and model-based assignment test. Furthermore, two components of reproductive isolation were examined by analyzing fruit set and seed viability in interpopulation crosses. Strong plastid genetic structure (
F
ST
= 0.679) was found between insular and remaining populations, indicating that
E
.
fulgens
reduced gene flow via seed dispersal, although significant nuclear genetic structure was lower (
D
ST
= 0.179), likely due to the smaller effective population size of the plastid genome. Significant differences in seed viability between self- and cross-pollinated plants were found, indicating the occurrence of inbreeding depression in all populations. Seed viability was significantly lower in crosses between insular and remaining populations, suggesting a late postzygotic reproductive barrier due to low migration associated with genetic drift (i.e., bottleneck) and its consequences. Our results confirm the importance of islands as drivers for populational differentiation and suggest a central role for outbreeding depression during the early stages of lineage diversification.</description><subject>Biomedical and Life Sciences</subject><subject>Differentiation</subject><subject>Divergence</subject><subject>Epidendrum</subject><subject>Evolution</subject><subject>Fruit set</subject><subject>Gene flow</subject><subject>Genetic diversity</subject><subject>Genetic drift</subject><subject>Genetic structure</subject><subject>Genomes</subject><subject>Inbreeding</subject><subject>Inbreeding depression</subject><subject>Life Sciences</subject><subject>Original Article</subject><subject>Outbreeding</subject><subject>Plant Anatomy/Development</subject><subject>Plant Ecology</subject><subject>Plant Sciences</subject><subject>Plant Systematics/Taxonomy/Biogeography</subject><subject>Population number</subject><subject>Populations</subject><subject>Reproductive isolation</subject><subject>Seed dispersal</subject><subject>Seeds</subject><subject>Speciation</subject><subject>Viability</subject><issn>0378-2697</issn><issn>1615-6110</issn><issn>2199-6881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kEtLxDAUhYMoOD7-gKuAG11Uc9smaZcivkAYEF2HTHIzRmpak1aZnT_dzIzgztWBw3fO5R5CToBdAGPyMjEmmChYCQUDydtitUNmIIAXAoDtkhmrZFOUopX75CClN5YpUcsZ-X7CIfZ2MqP_RLrQMXqMiepg6RIDjt5Q653DiGH0evR9oAscvxADNX22QvZ1t-F96tYy9MPUbchEe0dvBm8x2Di9Uzd1uTPRs3k0r95qgxrPj8ie013C4189JC-3N8_X98Xj_O7h-uqxMBW0Y1HXjoETsl64xoBDB6KyrmWc26auQRpoNG_QtJpXja2N4JUVleNiIYWQIKtDcrrtze9-TJhG9dZPMeSTquTQQt2UjchUuaVM7FOK6NQQ_buOKwVMrZdW26VVXlptllarHKq2oZThsMT4V_1P6ge4LIQj</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Pinheiro, Fábio</creator><creator>Veiga, Giovanna Seleghin</creator><creator>Chaves, Cleber Juliano Neves</creator><creator>da Costa Cacossi, Tami</creator><creator>da Silva, Clarisse Palma</creator><general>Springer Vienna</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X2</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><orcidid>https://orcid.org/0000-0003-3243-2652</orcidid></search><sort><creationdate>20210601</creationdate><title>Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae)</title><author>Pinheiro, Fábio ; Veiga, Giovanna Seleghin ; Chaves, Cleber Juliano Neves ; da Costa Cacossi, Tami ; da Silva, Clarisse Palma</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-44f01f674bf8c1fef163df9055d84417c18a58ec9a538d4c653d63f56b7667173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Biomedical and Life Sciences</topic><topic>Differentiation</topic><topic>Divergence</topic><topic>Epidendrum</topic><topic>Evolution</topic><topic>Fruit set</topic><topic>Gene flow</topic><topic>Genetic diversity</topic><topic>Genetic drift</topic><topic>Genetic structure</topic><topic>Genomes</topic><topic>Inbreeding</topic><topic>Inbreeding depression</topic><topic>Life Sciences</topic><topic>Original Article</topic><topic>Outbreeding</topic><topic>Plant Anatomy/Development</topic><topic>Plant Ecology</topic><topic>Plant Sciences</topic><topic>Plant Systematics/Taxonomy/Biogeography</topic><topic>Population number</topic><topic>Populations</topic><topic>Reproductive isolation</topic><topic>Seed dispersal</topic><topic>Seeds</topic><topic>Speciation</topic><topic>Viability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pinheiro, Fábio</creatorcontrib><creatorcontrib>Veiga, Giovanna Seleghin</creatorcontrib><creatorcontrib>Chaves, Cleber Juliano Neves</creatorcontrib><creatorcontrib>da Costa Cacossi, Tami</creatorcontrib><creatorcontrib>da Silva, Clarisse Palma</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Agricultural Science Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Biological Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Plant systematics and evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pinheiro, Fábio</au><au>Veiga, Giovanna Seleghin</au><au>Chaves, Cleber Juliano Neves</au><au>da Costa Cacossi, Tami</au><au>da Silva, Clarisse Palma</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae)</atitle><jtitle>Plant systematics and evolution</jtitle><stitle>Plant Syst Evol</stitle><date>2021-06-01</date><risdate>2021</risdate><volume>307</volume><issue>3</issue><artnum>36</artnum><issn>0378-2697</issn><eissn>1615-6110</eissn><eissn>2199-6881</eissn><abstract>Studies on insular organisms provide an important framework for investigating patterns of genetic differentiation and reproductive isolation. By focusing on populations of the same species, we have the opportunity to study the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the genetic differentiation and the evolution of early stages of intrinsic postmating reproductive isolation between continental and insular populations of
Epidendrum fulgens
, a neotropical orchid distributed in southeastern Brazil. Genetic diversity and structure were estimated for both nuclear and plastid markers by using genetic differentiation measures and model-based assignment test. Furthermore, two components of reproductive isolation were examined by analyzing fruit set and seed viability in interpopulation crosses. Strong plastid genetic structure (
F
ST
= 0.679) was found between insular and remaining populations, indicating that
E
.
fulgens
reduced gene flow via seed dispersal, although significant nuclear genetic structure was lower (
D
ST
= 0.179), likely due to the smaller effective population size of the plastid genome. Significant differences in seed viability between self- and cross-pollinated plants were found, indicating the occurrence of inbreeding depression in all populations. Seed viability was significantly lower in crosses between insular and remaining populations, suggesting a late postzygotic reproductive barrier due to low migration associated with genetic drift (i.e., bottleneck) and its consequences. Our results confirm the importance of islands as drivers for populational differentiation and suggest a central role for outbreeding depression during the early stages of lineage diversification.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00606-021-01759-y</doi><orcidid>https://orcid.org/0000-0003-3243-2652</orcidid></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0378-2697 |
ispartof | Plant systematics and evolution, 2021-06, Vol.307 (3), Article 36 |
issn | 0378-2697 1615-6110 2199-6881 |
language | eng |
recordid | cdi_proquest_journals_2519148286 |
source | SpringerNature Journals |
subjects | Biomedical and Life Sciences Differentiation Divergence Epidendrum Evolution Fruit set Gene flow Genetic diversity Genetic drift Genetic structure Genomes Inbreeding Inbreeding depression Life Sciences Original Article Outbreeding Plant Anatomy/Development Plant Ecology Plant Sciences Plant Systematics/Taxonomy/Biogeography Population number Populations Reproductive isolation Seed dispersal Seeds Speciation Viability |
title | Reproductive barriers and genetic differentiation between continental and island populations of Epidendrum fulgens (Orchidaceae) |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T03%3A06%3A47IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Reproductive%20barriers%20and%20genetic%20differentiation%20between%20continental%20and%20island%20populations%20of%20Epidendrum%20fulgens%20(Orchidaceae)&rft.jtitle=Plant%20systematics%20and%20evolution&rft.au=Pinheiro,%20F%C3%A1bio&rft.date=2021-06-01&rft.volume=307&rft.issue=3&rft.artnum=36&rft.issn=0378-2697&rft.eissn=1615-6110&rft_id=info:doi/10.1007/s00606-021-01759-y&rft_dat=%3Cproquest_cross%3E2519148286%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2519148286&rft_id=info:pmid/&rfr_iscdi=true |