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Yoshida, S.* ; Kim, S.* ; Wafula, E.K.* ; Tanskanen, J.* ; Kim, Y.-M.* ; Honaas, L.* ; Yang, Z.* ; Spallek, T.* ; Conn, C.E.* ; Ichihashi, Y.* ; Cheong, K.* ; Cui, S.* ; Der, J.P.* ; Gundlach, H. ; Jiao, Y.* ; Hori, C.* ; Ishida, J.K.* ; Kasahara, H.* ; Kiba, T.* ; Kim, M.S.* ; Koo, N.* ; Laohavisit, A.* ; Lee, Y.-H.* ; Lumba, S.* ; McCourt, P.* ; Mortimer, J.C.* ; Mutuku, J.M.* ; Nomura, T.* ; Sasaki-Sekimoto, Y.* ; Seto, Y.* ; Wang, Y.* ; Wakatake, T.* ; Sakakibara, H.* ; Demura, T.* ; Yamaguchi, S.* ; Yoneyama, K.* ; Manabe, R.-i.* ; Nelson, D.C.* ; Schulman, A.H.* ; Timko, M.P.* ; Depamphilis, C.W.* ; Choi, D.* ; Shirasu, K.*

Genome sequence of Striga asiatica provides insight into the evolution of plant parasitism.

Curr. Biol. 29, 3041-3052.e4 (2019)
Publ. Version/Full Text Preprint Research data DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Parasitic plants in the genus Striga, commonly known as witchweeds, cause major crop losses in sub-Saharan Africa and pose a threat to agriculture worldwide. An understanding of Striga parasite biology, which could lead to agricultural solutions, has been hampered by the lack of genome information. Here, we report the draft genome sequence of Striga asiatica with 34,577 predicted protein-coding genes, which reflects gene family contractions and expansions that are consistent with a three-phase model of parasitic plant genome evolution. Striga seeds germinate in response to host-derived strigolactones (SLs) and then develop a specialized penetration structure, the haustorium, to invade the host root. A family of SL receptors has undergone a striking expansion, suggesting a molecular basis for the evolution of broad host range among Striga spp. We found that genes involved in lateral root development in non-parasitic model species are coordinately induced during haustorium development in Striga, suggesting a pathway that was partly co-opted during the evolution of the haustorium. In addition, we found evidence for horizontal transfer of host genes as well as retrotransposons, indicating gene flow to S. asiatica from hosts. Our results provide valuable insights into the evolution of parasitism and a key resource for the future development of Striga control strategies.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Genome ; Horizontal Gene Transfer ; Orobanchaceae ; Parasitic Plant ; Striga ; Strigoractone ; Transcriptome; Horizontal Gene-transfer; Strigolactone Receptors; Phylogenetic Analysis; Messenger-rna; Tool; Responses; Stereoisomers; Germination; Witchweed; Alignment
ISSN (print) / ISBN 0960-9822
e-ISSN 1879-0445
Journal Current Biology
Quellenangaben Volume: 29, Issue: 18, Pages: 3041-3052.e4 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place 50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Research Unit Plant Genome and Systems Biology (PGSB)