J 2017

Diverse genome organization following 13 independent mesopolyploid events in Brassicaceae contrasts with convergent patterns of gene retention

MANDÁKOVÁ, Terezie; Zheng LI; Michael S. BARKER a Martin LYSÁK

Základní údaje

Originální název

Diverse genome organization following 13 independent mesopolyploid events in Brassicaceae contrasts with convergent patterns of gene retention

Autoři

MANDÁKOVÁ, Terezie; Zheng LI; Michael S. BARKER a Martin LYSÁK

Vydání

Plant Journal, Hoboken (USA), Wiley-Blackwell, 2017, 0960-7412

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.775

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14740/17:00095155

Organizační jednotka

Středoevropský technologický institut

EID Scopus

Klíčová slova anglicky

whole-genome duplication; mesopolyploidy; post-polyploid diploidization; biased gene retention/loss; chromosome number variation; descending dysploidy; chromosomal rearrangement; Brassicaceae

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 1. 3. 2018 14:37, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

Hybridization and polyploidy followed by genome-wide diploidization had a significant impact on the diversification of land plants. The ancient At-alpha whole-genome duplication (WGD) preceded the diversification of crucifers (Brassicaceae). Some genera and tribes also experienced younger, mesopolyploid WGDs concealed by subsequent genome diploidization. Here we tested if multiple base chromosome numbers originated due to genome diploidization after independent mesopolyploid WGDs and how diploidization affected post-polyploid gene retention. Sixteen species representing 10 Brassicaceae tribes were analyzed by comparative chromosome painting and/or whole-transcriptome analysis of gene age distributions and phylogenetic analyses of gene duplications. Overall, we found evidence for at least 13 independent mesopolyploidies followed by different degrees of diploidization across the Brassicaceae. New mesotetraploid events were uncovered for the tribes Anastaticeae, Iberideae and Schizopetaleae, and mesohexaploid WGDs for Cochlearieae and Physarieae. In contrast, we found convergent patterns of gene retention and loss among these independent WGDs. Our combined analyses of genomic data for Brassicaceae indicate that extant chromosome number variation in many plant groups, and especially monophyletic taxa with multiple base chromosome numbers, can result from clade-specific genome duplications followed by diploidization. Our observation of parallel gene retention and loss across multiple independent WGDs provides one of the first multi-species tests of the predictability of patterns of post-polyploid genome evolution.

Návaznosti

GA13-10159S, projekt VaV
Název: Role mesopolyploidie v evoluci čeledi Brassicaceae
Investor: Grantová agentura ČR, Role mesopolyploidie v evoluci celedi Brassicaceae
LQ1601, projekt VaV
Název: CEITEC 2020 (Akronym: CEITEC2020)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020