A novel CLAVATA1 mutation causes multilocularity in Brassica rapa
Abstract Locules are the seed‐bearing structure of fruits. Multiple locules are associated with increased fruit size and seed set, and therefore, control of locule number is an important agronomic trait. Locule number is controlled in part by the CLAVATA‐WUSCHEL pathway. Disruption of either the CLA...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-01-01
|
| Series: | Plant Direct |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/pld3.476 |
| _version_ | 1797938838211919872 |
|---|---|
| author | Hiu Tung Chow Timmy Kendall Rebecca A. Mosher |
| author_facet | Hiu Tung Chow Timmy Kendall Rebecca A. Mosher |
| author_sort | Hiu Tung Chow |
| collection | DOAJ |
| description | Abstract Locules are the seed‐bearing structure of fruits. Multiple locules are associated with increased fruit size and seed set, and therefore, control of locule number is an important agronomic trait. Locule number is controlled in part by the CLAVATA‐WUSCHEL pathway. Disruption of either the CLAVATA1 receptor‐like kinase or its ligand CLAVATA3 can cause larger floral meristems and an increased number of locules. In an EMS mutagenized population of Brassica rapa, we identified a mutant allele that raises the number of locules from four to a range of from six to eight. Linkage mapping and genetic analysis support that the mutant phenotype is due to a missense mutation in a CLAVATA 1 (CLV1) homolog. In addition to increased locule number, additional internal gynoecia are formed in brclv1 individuals, suggesting a failure to terminate floral meristem development, which results in decreased seed production. |
| first_indexed | 2024-04-10T19:07:07Z |
| format | Article |
| id | doaj.art-c6e1cfcf82174df487bcc108de36bd8d |
| institution | Directory Open Access Journal |
| issn | 2475-4455 |
| language | English |
| last_indexed | 2024-04-10T19:07:07Z |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Plant Direct |
| spelling | doaj.art-c6e1cfcf82174df487bcc108de36bd8d2023-01-31T00:12:54ZengWileyPlant Direct2475-44552023-01-0171n/an/a10.1002/pld3.476A novel CLAVATA1 mutation causes multilocularity in Brassica rapaHiu Tung Chow0Timmy Kendall1Rebecca A. Mosher2School of Plant Sciences The University of Arizona Tucson Arizona USASchool of Plant Sciences The University of Arizona Tucson Arizona USASchool of Plant Sciences The University of Arizona Tucson Arizona USAAbstract Locules are the seed‐bearing structure of fruits. Multiple locules are associated with increased fruit size and seed set, and therefore, control of locule number is an important agronomic trait. Locule number is controlled in part by the CLAVATA‐WUSCHEL pathway. Disruption of either the CLAVATA1 receptor‐like kinase or its ligand CLAVATA3 can cause larger floral meristems and an increased number of locules. In an EMS mutagenized population of Brassica rapa, we identified a mutant allele that raises the number of locules from four to a range of from six to eight. Linkage mapping and genetic analysis support that the mutant phenotype is due to a missense mutation in a CLAVATA 1 (CLV1) homolog. In addition to increased locule number, additional internal gynoecia are formed in brclv1 individuals, suggesting a failure to terminate floral meristem development, which results in decreased seed production.https://doi.org/10.1002/pld3.476B. rapaCLAVATA‐WUSCHELfloral meristemfruitgynoeciumlocule |
| spellingShingle | Hiu Tung Chow Timmy Kendall Rebecca A. Mosher A novel CLAVATA1 mutation causes multilocularity in Brassica rapa Plant Direct B. rapa CLAVATA‐WUSCHEL floral meristem fruit gynoecium locule |
| title | A novel CLAVATA1 mutation causes multilocularity in Brassica rapa |
| title_full | A novel CLAVATA1 mutation causes multilocularity in Brassica rapa |
| title_fullStr | A novel CLAVATA1 mutation causes multilocularity in Brassica rapa |
| title_full_unstemmed | A novel CLAVATA1 mutation causes multilocularity in Brassica rapa |
| title_short | A novel CLAVATA1 mutation causes multilocularity in Brassica rapa |
| title_sort | novel clavata1 mutation causes multilocularity in brassica rapa |
| topic | B. rapa CLAVATA‐WUSCHEL floral meristem fruit gynoecium locule |
| url | https://doi.org/10.1002/pld3.476 |
| work_keys_str_mv | AT hiutungchow anovelclavata1mutationcausesmultilocularityinbrassicarapa AT timmykendall anovelclavata1mutationcausesmultilocularityinbrassicarapa AT rebeccaamosher anovelclavata1mutationcausesmultilocularityinbrassicarapa AT hiutungchow novelclavata1mutationcausesmultilocularityinbrassicarapa AT timmykendall novelclavata1mutationcausesmultilocularityinbrassicarapa AT rebeccaamosher novelclavata1mutationcausesmultilocularityinbrassicarapa |