The identification of the missing maternal genome of the
allohexaploid camelina (Camelina sativa)

J 2022

The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa)

MALÍK MANDÁKOVÁ, Terezie and Martin LYSÁK

Basic information

Original name

The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa)

Authors

MALÍK MANDÁKOVÁ, Terezie (203 Czech Republic, belonging to the institution) and Martin LYSÁK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant Journal, Hoboken (USA), Wiley-Blackwell, 2022, 0960-7412

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 7.200

RIV identification code

RIV/00216224:14740/22:00129248

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1111/tpj.15931

UT WoS

000863674100001

Keywords in English

allopolyploidy; Brassicaceae; Camelina; false flax; chromosome rearrangements; genome evolution; hybridization

Abstract

V originále

Hexaploid camelina (Camelina sativa; 2n = 6x = 40) is an important oilseed crop closely related to Arabidopsis. Compared to other polyploid crops, the origin of the three camelina subgenomes has begun to be unveiled only recently. While phylogenomic studies identified the diploid C. hispida (2n = 2x = 14) as the paternal genome of C. sativa, the maternal donor genome remained unknown. Because the chromosomes assigned to a putative maternal genome resembled those of diploid C. neglecta (2n = 12), a tetraploid C. neglecta-like genome (2n = 4x = 26) was hypothesized to be the likely maternal ancestor of the hexaploid crop. Here we report the chromosome-level structure of the predicted tetraploid Camelina genome identified among genotypes previously classified together as C. microcarpa and referred to here as C. intermedia. Detailed cytogenomic analysis of the tetraploid genome revealed high collinearity with two maternally inherited subgenomes of the hexaploid C. sativa. The identification of the missing donor tetraploid genome provides new insights into the reticulate evolutionary history of the Camelina polyploid complex and allows us to postulate a comprehensive evolutionary model for the genus. The herein elucidated origin of the C. sativa genome opens the door for subsequent genome modifications and resynthesis of the allohexaploid camelina genome.

Links

GA21-03909S, research and development project

Name: Odhalení evolučních tajů lničky seté a příbuzných druhů

Investor: Czech Science Foundation, Unlocking evolutionary secrets of false flax and its relatives

Citovat

MALÍK MANDÁKOVÁ, Terezie and Martin LYSÁK. The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa). Plant Journal. Hoboken (USA): Wiley-Blackwell, 2022, vol. 112, No 3, p. 622-629. ISSN 0960-7412. Available from: https://dx.doi.org/10.1111/tpj.15931.

@article{2239431,
   author = {Malík Mandáková, Terezie and Lysák, Martin},
   article_location = {Hoboken (USA)},
   article_number = {3},
   doi = {http://dx.doi.org/10.1111/tpj.15931},
   keywords = {allopolyploidy; Brassicaceae; Camelina; false flax; chromosome rearrangements; genome evolution; hybridization},
   language = {eng},
   issn = {0960-7412},
   journal = {Plant Journal},
   title = {The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa)},
   url = {https://onlinelibrary.wiley.com/doi/10.1111/tpj.15931},
   volume = {112},
   year = {2022}
}

TY  - JOUR
ID  - 2239431
AU  - Malík Mandáková, Terezie - Lysák, Martin
PY  - 2022
TI  - The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa)
JF  - Plant Journal
VL  - 112
IS  - 3
SP  - 622-629
EP  - 622-629
PB  - Wiley-Blackwell
SN  - 09607412
KW  - allopolyploidy
KW  - Brassicaceae
KW  - Camelina
KW  - false flax
KW  - chromosome rearrangements
KW  - genome evolution
KW  - hybridization
UR  - https://onlinelibrary.wiley.com/doi/10.1111/tpj.15931
N2  - Hexaploid camelina (Camelina sativa; 2n = 6x = 40) is an important oilseed crop closely related to Arabidopsis. Compared to other polyploid crops, the origin of the three camelina subgenomes has begun to be unveiled only recently. While phylogenomic studies identified the diploid C. hispida (2n = 2x = 14) as the paternal genome of C. sativa, the maternal donor genome remained unknown. Because the chromosomes assigned to a putative maternal genome resembled those of diploid C. neglecta (2n = 12), a tetraploid C. neglecta-like genome (2n = 4x = 26) was hypothesized to be the likely maternal ancestor of the hexaploid crop. Here we report the chromosome-level structure of the predicted tetraploid Camelina genome identified among genotypes previously classified together as C. microcarpa and referred to here as C. intermedia. Detailed cytogenomic analysis of the tetraploid genome revealed high collinearity with two maternally inherited subgenomes of the hexaploid C. sativa. The identification of the missing donor tetraploid genome provides new insights into the reticulate evolutionary history of the Camelina polyploid complex and allows us to postulate a comprehensive evolutionary model for the genus. The herein elucidated origin of the C. sativa genome opens the door for subsequent genome modifications and resynthesis of the allohexaploid camelina genome.
ER  -

MALÍK MANDÁKOVÁ, Terezie and Martin LYSÁK. The identification of the missing maternal genome of the allohexaploid camelina (Camelina sativa). \textit{Plant Journal}. Hoboken (USA): Wiley-Blackwell, 2022, vol.~112, No~3, p.~622-629. ISSN~0960-7412. Available from: https://dx.doi.org/10.1111/tpj.15931.

Detailed Information on Publication Record