1
|
Wenzell KE, McDonnell AJ, Wickett NJ, Fant JB, Skogen KA. Incomplete reproductive isolation and low genetic differentiation despite floral divergence across varying geographic scales in Castilleja. AMERICAN JOURNAL OF BOTANY 2021; 108:1270-1288. [PMID: 34289081 DOI: 10.1002/ajb2.1700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
PREMISE Divergence depends on the strength of selection and frequency of gene flow between taxa, while reproductive isolation relies on mating barriers and geographic distance. Less is known about how these processes interact at early stages of speciation. Here, we compared population-level differentiation in floral phenotype and genetic sequence variation among recently diverged Castilleja to explore patterns of diversification under different scenarios of reproductive isolation. METHODS Using target enrichment enabled by the Angiosperms353 probe set, we assessed genetic distance among 50 populations of four Castilleja species. We investigated whether patterns of genetic divergence are explained by floral trait variation or geographic distance in two focal groups: the widespread C. sessiliflora and the more restricted C. purpurea species complex. RESULTS We document that C. sessiliflora and the C. purpurea complex are characterized by high diversity in floral color across varying geographic scales. Despite phenotypic divergence, groups were not well supported in phylogenetic analyses, and little genetic differentiation was found across targeted Angiosperms353 loci. Nonetheless, a principal coordinate analysis of single nucleotide polymorphisms revealed differentiation within C. sessiliflora across floral morphs and geography and less differentiation among species of the C. purpurea complex. CONCLUSIONS Patterns of genetic distance in C. sessiliflora suggest species cohesion maintained over long distances despite variation in floral traits. In the C. purpurea complex, divergence in floral color across narrow geographic clines may be driven by recent selection on floral color. These contrasting patterns of floral and genetic differentiation reveal that divergence can arise via multiple eco-evolutionary paths.
Collapse
Affiliation(s)
- Katherine E Wenzell
- Program in Plant Biology and Conservation, Northwestern University, O.T. Hogan Hall, Room 6-140B, 2205 Tech Drive, Evanston, IL, 60208, USA
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60022, USA
- John Innes Centre, Norwich Research Park, Colney Lane, Norwich, NR4 7UH, UK
| | - Angela J McDonnell
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60022, USA
| | - Norman J Wickett
- Program in Plant Biology and Conservation, Northwestern University, O.T. Hogan Hall, Room 6-140B, 2205 Tech Drive, Evanston, IL, 60208, USA
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60022, USA
| | - Jeremie B Fant
- Program in Plant Biology and Conservation, Northwestern University, O.T. Hogan Hall, Room 6-140B, 2205 Tech Drive, Evanston, IL, 60208, USA
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60022, USA
| | - Krissa A Skogen
- Program in Plant Biology and Conservation, Northwestern University, O.T. Hogan Hall, Room 6-140B, 2205 Tech Drive, Evanston, IL, 60208, USA
- Negaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, 60022, USA
| |
Collapse
|
2
|
St. Clair AB, Dunwiddie PW, Fant JB, Kaye TN, Kramer AT. Mixing source populations increases genetic diversity of restored rare plant populations. Restor Ecol 2020. [DOI: 10.1111/rec.13131] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Adrienne Basey St. Clair
- Program in Plant Biology and ConservationNorthwestern University 2205 Tech Drive Evanston IL 60208 U.S.A
- Negaunee Institute for Plant Conservation Science and ActionNegaunee Institute for Plant Conservation Science and Action Botanic Garden 1000 Lake Cook Road Chicago IL 60022 U.S.A
| | | | - Jeremie B. Fant
- Negaunee Institute for Plant Conservation Science and ActionNegaunee Institute for Plant Conservation Science and Action Botanic Garden 1000 Lake Cook Road Chicago IL 60022 U.S.A
| | - Thomas N. Kaye
- Institute for Applied Ecology 563 SW Jefferson Avenue Corvallis OR 97333 U.S.A
- Department of Botany and Plant PathologyOregon State University Corvallis OR 97331 U.S.A
| | - Andrea T. Kramer
- Negaunee Institute for Plant Conservation Science and ActionNegaunee Institute for Plant Conservation Science and Action Botanic Garden 1000 Lake Cook Road Chicago IL 60022 U.S.A
| |
Collapse
|
3
|
Genetic differentiation and diversity of two sympatric subspecies of Castilleja affinis; a comparison between the endangered serpentine endemic (spp. neglecta) and its widespread congener (ssp. affinis). CONSERV GENET 2017. [DOI: 10.1007/s10592-017-1009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
4
|
Latvis M, Mortimer SME, Morales-Briones DF, Torpey S, Uribe-Convers S, Jacobs SJ, Mathews S, Tank DC. Primers for Castilleja and their utility across Orobanchaceae: I. Chloroplast primers. APPLICATIONS IN PLANT SCIENCES 2017; 5:apps.1700020. [PMID: 28989821 PMCID: PMC5628025 DOI: 10.3732/apps.1700020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/10/2017] [Indexed: 05/24/2023]
Abstract
PREMISE OF THE STUDY Chloroplast primers were developed from genomic data for the taxonomically challenging genus Castilleja. We further tested the broader utility of these primers across Orobanchaceae, identifying a core set of chloroplast primers amplifying across the clade. METHODS AND RESULTS Using a combination of three low-coverage Castilleja genomes and sequence data from 12 Castilleja plastomes, 76 primer combinations were specifically designed and tested for Castilleja. The primers targeted the most variable portions of the plastome and were validated for their applicability across the clade. Of these, 38 primer combinations were subsequently evaluated in silico and then validated across other major clades in Orobanchaceae. CONCLUSIONS These results demonstrate the utility of these primers, not only across Castilleja, but for other clades in Orobanchaceae-particularly hemiparasitic lineages-and will contribute to future phylogenetic studies of this important clade of parasitic plants.
Collapse
Affiliation(s)
- Maribeth Latvis
- Department of Natural Resource Management, South Dakota State University, 1390 College Avenue, Brookings, South Dakota 57007 USA
| | - Sebastian M. E. Mortimer
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
| | - Diego F. Morales-Briones
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Samuel Torpey
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Simon Uribe-Convers
- Department of Ecology and Evolutionary Biology, University of Michigan, 830 North University Avenue, Ann Arbor, Michigan 48109 USA
| | - Sarah J. Jacobs
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Sarah Mathews
- Australian National Herbarium, CSIRO National Research Collections, Canberra, Australia
| | - David C. Tank
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| |
Collapse
|
5
|
Latvis M, Jacobs SJ, Mortimer SME, Richards M, Blischak PD, Mathews S, Tank DC. Primers for Castilleja and their utility across Orobanchaceae: II. Single-copy nuclear loci. APPLICATIONS IN PLANT SCIENCES 2017; 5:apps.1700038. [PMID: 28989822 PMCID: PMC5628026 DOI: 10.3732/apps.1700038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 07/20/2017] [Indexed: 05/25/2023]
Abstract
PREMISE OF THE STUDY We developed primers targeting nuclear loci in Castilleja with the goal of reconstructing the evolutionary history of this challenging clade. These primers were tested across other major clades in Orobanchaceae to assess their broader utility. METHODS AND RESULTS We assembled low-coverage genomes for three taxa in Castilleja and developed primer combinations for the single-copy conserved ortholog set (COSII) and the pentatricopeptide repeat (PPR) gene family. These primer combinations were designed to take advantage of the Fluidigm microfluidic PCR platform and are well suited for high-throughput sequencing applications. Eighty-seven primers were designed for Castilleja, and 27 were found to have broader utility in Orobanchaceae. CONCLUSIONS These results demonstrate the utility of these primers, not only across Castilleja, but for other lineages within Orobanchaceae as well. This expanded molecular toolkit will be an asset to future phylogenetic studies in Castilleja and throughout Orobanchaceae.
Collapse
Affiliation(s)
- Maribeth Latvis
- Department of Natural Resource Management, South Dakota State University, 1390 College Avenue, Brookings, South Dakota 57007 USA
| | - Sarah J. Jacobs
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Sebastian M. E. Mortimer
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
| | - Melissa Richards
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Paul D. Blischak
- The Ohio State University, Department of Evolution, Ecology, and Organismal Biology, 318 W. 12th Avenue, Columbus, Ohio 43210 USA
| | - Sarah Mathews
- Australian National Herbarium, CSIRO National Research Collections, Canberra, Australia
| | - David C. Tank
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| |
Collapse
|
6
|
Latvis M, Jacobs SJ, Mortimer SME, Richards M, Blischak PD, Mathews S, Tank DC. Primers for Castilleja and their utility across Orobanchaceae: II. Single-copy nuclear loci. APPLICATIONS IN PLANT SCIENCES 2017. [PMID: 28989822 DOI: 10.5061/dryad.52v62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
PREMISE OF THE STUDY We developed primers targeting nuclear loci in Castilleja with the goal of reconstructing the evolutionary history of this challenging clade. These primers were tested across other major clades in Orobanchaceae to assess their broader utility. METHODS AND RESULTS We assembled low-coverage genomes for three taxa in Castilleja and developed primer combinations for the single-copy conserved ortholog set (COSII) and the pentatricopeptide repeat (PPR) gene family. These primer combinations were designed to take advantage of the Fluidigm microfluidic PCR platform and are well suited for high-throughput sequencing applications. Eighty-seven primers were designed for Castilleja, and 27 were found to have broader utility in Orobanchaceae. CONCLUSIONS These results demonstrate the utility of these primers, not only across Castilleja, but for other lineages within Orobanchaceae as well. This expanded molecular toolkit will be an asset to future phylogenetic studies in Castilleja and throughout Orobanchaceae.
Collapse
Affiliation(s)
- Maribeth Latvis
- Department of Natural Resource Management, South Dakota State University, 1390 College Avenue, Brookings, South Dakota 57007 USA
| | - Sarah J Jacobs
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Sebastian M E Mortimer
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
| | - Melissa Richards
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| | - Paul D Blischak
- The Ohio State University, Department of Evolution, Ecology, and Organismal Biology, 318 W. 12th Avenue, Columbus, Ohio 43210 USA
| | - Sarah Mathews
- Australian National Herbarium, CSIRO National Research Collections, Canberra, Australia
| | - David C Tank
- Department of Biological Sciences, University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
- Stillinger Herbarium, University of Idaho, 875 Perimeter Drive, MS 1133, Moscow, Idaho 83844-1133 USA
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, 875 Perimeter Drive, MS 3051, Moscow, Idaho 83844-3051 USA
| |
Collapse
|