Chromosomal Evolution and Apomixis in the Cruciferous Tribe Boechereae

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F20%3A00117309" target="_blank" >RIV/00216224:14740/20:00117309 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.frontiersin.org/articles/10.3389/fpls.2020.00514/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fpls.2020.00514/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fpls.2020.00514" target="_blank" >10.3389/fpls.2020.00514</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chromosomal Evolution and Apomixis in the Cruciferous Tribe Boechereae

Popis výsledku v původním jazyce

The mustard family (Brassicaceae) comprises several dozen monophyletic clades usually ranked as tribes. The tribe Boechereae plays a prominent role in plant research due to the incidence of apomixis and its close relationship toArabidopsis. This tribe, largely confined to western North America, harbors nine genera and c. 130 species, with &gt;90% of species belonging to the genusBoechera. Hundreds of apomictic diploid and triploidBoecherahybrids have spurred interest in this genus, but the remaining Boechereae genomes remain virtually unstudied. Here we report on comparative genome structure of six genera (Borodinia,Cusickiella,Phoenicaulis,Polyctenium,Nevada, andSandbergia) and threeBoecheraspecies as revealed by comparative chromosome painting (CCP). All analyzed taxa shared the same seven-chromosome genome structure. Comparisons with the sister Halimolobeae tribe (n= 8) showed that the ancestral Boechereae genome (n= 7) was derived from an oldern= 8 genome by descending dysploidy followed by the divergence of extant Boechereae taxa. As tribal divergence post-dated the origin of four tribe-specific chromosomes, it is proposed that these chromosomal rearrangements were a key evolutionary innovation underlaying the origin and diversification of the Boechereae in North America. Although most Boechereae genera exhibit genomic conservatism, intra-tribal cladogenesis has occasionally been accompanied by chromosomal rearrangements (particularly inversions). Recently, apomixis was reported in the Boechereae generaBorodiniaandPhoenicaulis. Here, we report sexual reproduction in diploidNevada, diploidSandbergia, and tetraploidCusickiellaand aposporous apomixis in tetraploids ofPolycteniumandSandbergia. In sum, apomixis is now known to occur in five of the nine Boechereae genera.

Název v anglickém jazyce

Chromosomal Evolution and Apomixis in the Cruciferous Tribe Boechereae

Popis výsledku anglicky

The mustard family (Brassicaceae) comprises several dozen monophyletic clades usually ranked as tribes. The tribe Boechereae plays a prominent role in plant research due to the incidence of apomixis and its close relationship toArabidopsis. This tribe, largely confined to western North America, harbors nine genera and c. 130 species, with &gt;90% of species belonging to the genusBoechera. Hundreds of apomictic diploid and triploidBoecherahybrids have spurred interest in this genus, but the remaining Boechereae genomes remain virtually unstudied. Here we report on comparative genome structure of six genera (Borodinia,Cusickiella,Phoenicaulis,Polyctenium,Nevada, andSandbergia) and threeBoecheraspecies as revealed by comparative chromosome painting (CCP). All analyzed taxa shared the same seven-chromosome genome structure. Comparisons with the sister Halimolobeae tribe (n= 8) showed that the ancestral Boechereae genome (n= 7) was derived from an oldern= 8 genome by descending dysploidy followed by the divergence of extant Boechereae taxa. As tribal divergence post-dated the origin of four tribe-specific chromosomes, it is proposed that these chromosomal rearrangements were a key evolutionary innovation underlaying the origin and diversification of the Boechereae in North America. Although most Boechereae genera exhibit genomic conservatism, intra-tribal cladogenesis has occasionally been accompanied by chromosomal rearrangements (particularly inversions). Recently, apomixis was reported in the Boechereae generaBorodiniaandPhoenicaulis. Here, we report sexual reproduction in diploidNevada, diploidSandbergia, and tetraploidCusickiellaand aposporous apomixis in tetraploids ofPolycteniumandSandbergia. In sum, apomixis is now known to occur in five of the nine Boechereae genera.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Frontiers in Plant Science

ISSN

1664-462X

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

MAY

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

17

Strana od-do

514

Kód UT WoS článku

000541575900001

EID výsledku v databázi Scopus

2-s2.0-85086357025