Genome Sequence of Striga asiatica Provides Insight into the Evolution of Plant Parasitism

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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 , Nelson , D C , Schulman , A H , Timko , M P , DePamphilis , C W , Choi , D & Shirasu , K 2019 , ' Genome Sequence of Striga asiatica Provides Insight into the Evolution of Plant Parasitism ' , Current Biology , vol. 29 , no. 18 , pp. 3041-3052 .

Title: Genome Sequence of Striga asiatica Provides Insight into the Evolution of Plant Parasitism
Author: Yoshida, Satoko; Kim, Seungill; Wafula, Eric K.; Tanskanen, Jaakko; Kim, Yong-Min; Honaas, Loren; Yang, Zhenzhen; Spallek, Thomas; Conn, Caitlin E.; Ichihashi, Yasunori; Cheong, Kyeongchae; Cui, Songkui; Der, Joshua P.; Gundlach, Heidrun; Jiao, Yuannian; Hori, Chiaki; Ishida, Juliane K.; Kasahara, Hiroyuki; Kiba, Takatoshi; Kim, Myung-Shin; Koo, Namjin; Laohavisit, Anuphon; Lee, Yong-Hwan; Lumba, Shelley; McCourt, Peter; Mortimer, Jenny C.; Mutuku, J. Musembi; Nomura, Takahito; Sasaki-Sekimoto, Yuko; Seto, Yoshiya; Wang, Yu; Wakatake, Takanori; Sakakibara, Hitoshi; Demura, Taku; Yamaguchi, Shinjiro; Yoneyama, Koichi; Manabe, Ri-ichiroh; Nelson, David C.; Schulman, Alan H.; Timko, Michael P.; DePamphilis, Claude W.; Choi, Doil; Shirasu, Ken
Contributor organization: Institute of Biotechnology
Viikki Plant Science Centre (ViPS)
Date: 2019-09-23
Language: eng
Number of pages: 16
Belongs to series: Current Biology
ISSN: 0960-9822
Abstract: 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.
1184 Genetics, developmental biology, physiology
1182 Biochemistry, cell and molecular biology
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion

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