The genetic basis of hybrid male sterility in sympatric Primulina species.
Analysis of Variance
Epistasis, Genetic
Flowers
/ anatomy & histology
Genetics, Population
Genome, Plant
Genotype
Hybrid Vigor
/ genetics
Hybridization, Genetic
Lamiales
/ genetics
Phenotype
Plant Infertility
/ genetics
Pollen
/ genetics
Principal Component Analysis
Quantitative Trait Loci
/ genetics
Sympatry
/ genetics
Genetic architecture
Hybrid male sterility
Primulina
QTL
Reproductive isolation
Journal
BMC evolutionary biology
ISSN: 1471-2148
Titre abrégé: BMC Evol Biol
Pays: England
ID NLM: 100966975
Informations de publication
Date de publication:
29 04 2020
29 04 2020
Historique:
received:
19
07
2019
accepted:
21
04
2020
entrez:
1
5
2020
pubmed:
1
5
2020
medline:
23
9
2020
Statut:
epublish
Résumé
Sympatric sister species provide an opportunity to investigate the genetic mechanisms and evolutionary forces that maintain species boundaries. The persistence of morphologically and genetically distinct populations in sympatry can only occur if some degree of reproductive isolation exists. A pair of sympatric sister species of Primulina (P. depressa and P. danxiaensis) was used to explore the genetic architecture of hybrid male sterility. We mapped one major- and seven minor-effect quantitative trait loci (QTLs) that underlie pollen fertility rate (PFR). These loci jointly explained 55.4% of the phenotypic variation in the F Hybrid male sterility in Primulina is controlled by a polygenic genetic basis with a complex pattern. The genetic incompatibility involves a three-locus BDM model. Hybrid male sterility is genetically correlated with floral morphology and divergence hitchhiking may occur between them.
Sections du résumé
BACKGROUND
Sympatric sister species provide an opportunity to investigate the genetic mechanisms and evolutionary forces that maintain species boundaries. The persistence of morphologically and genetically distinct populations in sympatry can only occur if some degree of reproductive isolation exists. A pair of sympatric sister species of Primulina (P. depressa and P. danxiaensis) was used to explore the genetic architecture of hybrid male sterility.
RESULTS
We mapped one major- and seven minor-effect quantitative trait loci (QTLs) that underlie pollen fertility rate (PFR). These loci jointly explained 55.4% of the phenotypic variation in the F
CONCLUSIONS
Hybrid male sterility in Primulina is controlled by a polygenic genetic basis with a complex pattern. The genetic incompatibility involves a three-locus BDM model. Hybrid male sterility is genetically correlated with floral morphology and divergence hitchhiking may occur between them.
Identifiants
pubmed: 32349663
doi: 10.1186/s12862-020-01617-4
pii: 10.1186/s12862-020-01617-4
pmc: PMC7191819
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
49Subventions
Organisme : Natural Science Foundation of China
ID : 31570338
Pays : International
Organisme : Strategic Priority Research Program of the Chinese Academy of Sciences
ID : XDB31000000
Pays : International
Organisme : China Postdoctoral Science Foundation
ID : 2019M653111
Pays : International
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