J 2022

Genetic structure and evolution of diploid Cochlearia in Iceland

OLSEN, Luka N, Marie K BRANDRUD, Terezie MALÍK MANDÁKOVÁ, Martin LYSÁK, Charlotte S BJORA et. al.

Základní údaje

Originální název

Genetic structure and evolution of diploid Cochlearia in Iceland

Autoři

OLSEN, Luka N, Marie K BRANDRUD, Terezie MALÍK MANDÁKOVÁ (203 Česká republika, domácí), Martin LYSÁK (203 Česká republika, garant, domácí), Charlotte S BJORA, Eduardo CIRES, Inger NORDAL a Anne K BRYSTING

Vydání

Botanical Journal of the Linnean society, OXFORD, The Linnean Society of London, 2022, 0024-4074

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 2.400

Kód RIV

RIV/00216224:14740/22:00127897

Organizační jednotka

Středoevropský technologický institut

UT WoS

000785867900001

Klíčová slova anglicky

alpine; Brassicaceae; chromosome counts; coastal plant; dysploidy; morphology; RADseq

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 8. 2024 23:16, Mgr. Michal Petr

Anotace

V originále

In northern European Cochlearia (Brassicaceae), considerable chromosome variation has taken place without corresponding morphological differentiation, resulting in an intricate species complex including two base chromosome numbers and several ploidies. Here, we investigate the situation in Iceland. The distribution, genetic structure, taxonomy and origin of the two Cochlearia cytotypes (2n = 12 and 2n = 14) present in Iceland are discussed. Chromosome counts indicate that both cytotypes occur along the coast, but 2n = 12 populations dominate (eight 2n = 12 vs. two 2n = 14 among the investigated populations), whereas 2n = 14 was reported for the two inland alpine populations investigated here. RADseq data support geographically structured genetic variation along the Icelandic coast and environmentally structured genetic differentiation between coastal and alpine populations. The alpine populations show genetic and morphological affiliation with C. groenlandica (2n = 14), which is widely distributed in the Arctic, but more comprehensive sampling is needed to draw conclusions concerning the taxonomic status of the Icelandic coastal plants. To uncover the origin of and phylogenomic relationships between the two chromosome variants, comparative whole-genome sequencing should be performed.