Most compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the calyceraceae

Michael S Barker, Zheng Li, Thomas I. Kidder, Chris R. Reardon, Zhao Lai, Luiz O. Oliveira, Moira Scascitelli, Loren H. Rieseberg

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

PREMISE OF THE STUDY: Like many other fl owering plants, members of the Compositae (Asteraceae) have a polyploid ancestry. Previous analyses found evidence for an ancient duplication or possibly triplication in the early evolutionary history of the family. We sought to better place this paleopolyploidy in the phylogeny and assess its nature. M ETHODS: We sequenced new transcriptomes for B arnadesia, the lineage sister to all other Compositae, and four representatives of closely related families. Using a recently developed algorithm, MAPS, we analyzed nuclear gene family phylogenies for evidence of paleopolyploidy. KEY RESULTS: We found that the previously recognized Compositae paleopolyploidy is also in the ancestry of the Calyceraceae. Our phylogenomic analyses uncovered evidence for a successive second round of genome duplication among all sampled Compositae except Barnadesia. C ONCLUSIONS: Our analyses of new samples with new tools provide a revised view of paleopolyploidy in the Compositae. Together with results from a high density Lactuca linkage map, our results suggest that the Compositae and Calyceraceae have a common paleotetraploid ancestor and that most Compositae are descendants of a paleohexaploid. Although paleohexaploids have been previously identifi ed, this is the fi rst example where the paleotetraploid and paleohexaploid lineages have survived over tens of millions of years. The complex polyploidy in the ancestry of the Compositae and Calyceraceae represents a unique opportunity to study the long-term evolutionary fates and consequences of diff erent ploidal levels.

Original languageEnglish (US)
Pages (from-to)1203-1211
Number of pages9
JournalAmerican Journal of Botany
Volume103
Issue number7
DOIs
StatePublished - Jul 1 2016

Fingerprint

Calyceraceae
Asteraceae
ancestry
phylogeny
polyploidy
common ancestry
Polyploidy
genome
Phylogeny
gene
Lactuca
family
Nuclear Family
Transcriptome
transcriptome
chromosome mapping
Siblings

Keywords

  • Asteraceae
  • Calyceraceae
  • Compositae
  • Paleopolyploidy
  • Polyploidy
  • Transcriptome
  • Whole genome duplication

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

Cite this

Most compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the calyceraceae. / Barker, Michael S; Li, Zheng; Kidder, Thomas I.; Reardon, Chris R.; Lai, Zhao; Oliveira, Luiz O.; Scascitelli, Moira; Rieseberg, Loren H.

In: American Journal of Botany, Vol. 103, No. 7, 01.07.2016, p. 1203-1211.

Research output: Contribution to journalArticle

Barker, Michael S ; Li, Zheng ; Kidder, Thomas I. ; Reardon, Chris R. ; Lai, Zhao ; Oliveira, Luiz O. ; Scascitelli, Moira ; Rieseberg, Loren H. / Most compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the calyceraceae. In: American Journal of Botany. 2016 ; Vol. 103, No. 7. pp. 1203-1211.
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abstract = "PREMISE OF THE STUDY: Like many other fl owering plants, members of the Compositae (Asteraceae) have a polyploid ancestry. Previous analyses found evidence for an ancient duplication or possibly triplication in the early evolutionary history of the family. We sought to better place this paleopolyploidy in the phylogeny and assess its nature. M ETHODS: We sequenced new transcriptomes for B arnadesia, the lineage sister to all other Compositae, and four representatives of closely related families. Using a recently developed algorithm, MAPS, we analyzed nuclear gene family phylogenies for evidence of paleopolyploidy. KEY RESULTS: We found that the previously recognized Compositae paleopolyploidy is also in the ancestry of the Calyceraceae. Our phylogenomic analyses uncovered evidence for a successive second round of genome duplication among all sampled Compositae except Barnadesia. C ONCLUSIONS: Our analyses of new samples with new tools provide a revised view of paleopolyploidy in the Compositae. Together with results from a high density Lactuca linkage map, our results suggest that the Compositae and Calyceraceae have a common paleotetraploid ancestor and that most Compositae are descendants of a paleohexaploid. Although paleohexaploids have been previously identifi ed, this is the fi rst example where the paleotetraploid and paleohexaploid lineages have survived over tens of millions of years. The complex polyploidy in the ancestry of the Compositae and Calyceraceae represents a unique opportunity to study the long-term evolutionary fates and consequences of diff erent ploidal levels.",
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T1 - Most compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the calyceraceae

AU - Barker, Michael S

AU - Li, Zheng

AU - Kidder, Thomas I.

AU - Reardon, Chris R.

AU - Lai, Zhao

AU - Oliveira, Luiz O.

AU - Scascitelli, Moira

AU - Rieseberg, Loren H.

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N2 - PREMISE OF THE STUDY: Like many other fl owering plants, members of the Compositae (Asteraceae) have a polyploid ancestry. Previous analyses found evidence for an ancient duplication or possibly triplication in the early evolutionary history of the family. We sought to better place this paleopolyploidy in the phylogeny and assess its nature. M ETHODS: We sequenced new transcriptomes for B arnadesia, the lineage sister to all other Compositae, and four representatives of closely related families. Using a recently developed algorithm, MAPS, we analyzed nuclear gene family phylogenies for evidence of paleopolyploidy. KEY RESULTS: We found that the previously recognized Compositae paleopolyploidy is also in the ancestry of the Calyceraceae. Our phylogenomic analyses uncovered evidence for a successive second round of genome duplication among all sampled Compositae except Barnadesia. C ONCLUSIONS: Our analyses of new samples with new tools provide a revised view of paleopolyploidy in the Compositae. Together with results from a high density Lactuca linkage map, our results suggest that the Compositae and Calyceraceae have a common paleotetraploid ancestor and that most Compositae are descendants of a paleohexaploid. Although paleohexaploids have been previously identifi ed, this is the fi rst example where the paleotetraploid and paleohexaploid lineages have survived over tens of millions of years. The complex polyploidy in the ancestry of the Compositae and Calyceraceae represents a unique opportunity to study the long-term evolutionary fates and consequences of diff erent ploidal levels.

AB - PREMISE OF THE STUDY: Like many other fl owering plants, members of the Compositae (Asteraceae) have a polyploid ancestry. Previous analyses found evidence for an ancient duplication or possibly triplication in the early evolutionary history of the family. We sought to better place this paleopolyploidy in the phylogeny and assess its nature. M ETHODS: We sequenced new transcriptomes for B arnadesia, the lineage sister to all other Compositae, and four representatives of closely related families. Using a recently developed algorithm, MAPS, we analyzed nuclear gene family phylogenies for evidence of paleopolyploidy. KEY RESULTS: We found that the previously recognized Compositae paleopolyploidy is also in the ancestry of the Calyceraceae. Our phylogenomic analyses uncovered evidence for a successive second round of genome duplication among all sampled Compositae except Barnadesia. C ONCLUSIONS: Our analyses of new samples with new tools provide a revised view of paleopolyploidy in the Compositae. Together with results from a high density Lactuca linkage map, our results suggest that the Compositae and Calyceraceae have a common paleotetraploid ancestor and that most Compositae are descendants of a paleohexaploid. Although paleohexaploids have been previously identifi ed, this is the fi rst example where the paleotetraploid and paleohexaploid lineages have survived over tens of millions of years. The complex polyploidy in the ancestry of the Compositae and Calyceraceae represents a unique opportunity to study the long-term evolutionary fates and consequences of diff erent ploidal levels.

KW - Asteraceae

KW - Calyceraceae

KW - Compositae

KW - Paleopolyploidy

KW - Polyploidy

KW - Transcriptome

KW - Whole genome duplication

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