Tags

Type your tag names separated by a space and hit enter

Ancestral polyploidy in seed plants and angiosperms.
Nature. 2011 May 05; 473(7345):97-100.Nat

Abstract

Whole-genome duplication (WGD), or polyploidy, followed by gene loss and diploidization has long been recognized as an important evolutionary force in animals, fungi and other organisms, especially plants. The success of angiosperms has been attributed, in part, to innovations associated with gene or whole-genome duplications, but evidence for proposed ancient genome duplications pre-dating the divergence of monocots and eudicots remains equivocal in analyses of conserved gene order. Here we use comprehensive phylogenomic analyses of sequenced plant genomes and more than 12.6 million new expressed-sequence-tag sequences from phylogenetically pivotal lineages to elucidate two groups of ancient gene duplications-one in the common ancestor of extant seed plants and the other in the common ancestor of extant angiosperms. Gene duplication events were intensely concentrated around 319 and 192 million years ago, implicating two WGDs in ancestral lineages shortly before the diversification of extant seed plants and extant angiosperms, respectively. Significantly, these ancestral WGDs resulted in the diversification of regulatory genes important to seed and flower development, suggesting that they were involved in major innovations that ultimately contributed to the rise and eventual dominance of seed plants and angiosperms.

Authors+Show Affiliations

Intercollege Graduate Degree Program in Plant Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

21478875

Citation

Jiao, Yuannian, et al. "Ancestral Polyploidy in Seed Plants and Angiosperms." Nature, vol. 473, no. 7345, 2011, pp. 97-100.
Jiao Y, Wickett NJ, Ayyampalayam S, et al. Ancestral polyploidy in seed plants and angiosperms. Nature. 2011;473(7345):97-100.
Jiao, Y., Wickett, N. J., Ayyampalayam, S., Chanderbali, A. S., Landherr, L., Ralph, P. E., Tomsho, L. P., Hu, Y., Liang, H., Soltis, P. S., Soltis, D. E., Clifton, S. W., Schlarbaum, S. E., Schuster, S. C., Ma, H., Leebens-Mack, J., & dePamphilis, C. W. (2011). Ancestral polyploidy in seed plants and angiosperms. Nature, 473(7345), 97-100. https://doi.org/10.1038/nature09916
Jiao Y, et al. Ancestral Polyploidy in Seed Plants and Angiosperms. Nature. 2011 May 5;473(7345):97-100. PubMed PMID: 21478875.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ancestral polyploidy in seed plants and angiosperms. AU - Jiao,Yuannian, AU - Wickett,Norman J, AU - Ayyampalayam,Saravanaraj, AU - Chanderbali,André S, AU - Landherr,Lena, AU - Ralph,Paula E, AU - Tomsho,Lynn P, AU - Hu,Yi, AU - Liang,Haiying, AU - Soltis,Pamela S, AU - Soltis,Douglas E, AU - Clifton,Sandra W, AU - Schlarbaum,Scott E, AU - Schuster,Stephan C, AU - Ma,Hong, AU - Leebens-Mack,Jim, AU - dePamphilis,Claude W, Y1 - 2011/04/10/ PY - 2010/08/29/received PY - 2011/02/10/accepted PY - 2011/4/12/entrez PY - 2011/4/12/pubmed PY - 2011/5/11/medline SP - 97 EP - 100 JF - Nature JO - Nature VL - 473 IS - 7345 N2 - Whole-genome duplication (WGD), or polyploidy, followed by gene loss and diploidization has long been recognized as an important evolutionary force in animals, fungi and other organisms, especially plants. The success of angiosperms has been attributed, in part, to innovations associated with gene or whole-genome duplications, but evidence for proposed ancient genome duplications pre-dating the divergence of monocots and eudicots remains equivocal in analyses of conserved gene order. Here we use comprehensive phylogenomic analyses of sequenced plant genomes and more than 12.6 million new expressed-sequence-tag sequences from phylogenetically pivotal lineages to elucidate two groups of ancient gene duplications-one in the common ancestor of extant seed plants and the other in the common ancestor of extant angiosperms. Gene duplication events were intensely concentrated around 319 and 192 million years ago, implicating two WGDs in ancestral lineages shortly before the diversification of extant seed plants and extant angiosperms, respectively. Significantly, these ancestral WGDs resulted in the diversification of regulatory genes important to seed and flower development, suggesting that they were involved in major innovations that ultimately contributed to the rise and eventual dominance of seed plants and angiosperms. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/21478875/Ancestral_polyploidy_in_seed_plants_and_angiosperms_ L2 - https://doi.org/10.1038/nature09916 DB - PRIME DP - Unbound Medicine ER -