56th Annual Maize Genetics Conference Program and Abstracts March 13 – March 16, 2014 Beijing, China This conference received financial support from: National Science Foundation Monsanto DuPont Pioneer Dow AgroSciences Syngenta BASF Plant Science KWS Biogemma AgReliant Beijing BerryGenomics Co.,Ltd. State Key Laboratory of Agrobiotechnology China Golden Marker（Beijing）Biotech Co.,ltd. We thank these contributors for their generosity! Table of Contents Cover Page ................................................................................................................... i Contributors ................................................................................................................. ii Table of Contents ......................................................................................................... iii General Information ..................................................................................................... iv Hotel Information ......................................................................................................... v Maps ............................................................................................................................. vi Useful Links .................................................................................................................. xii Program / Schedule ...................................................................................................... 1 List of Posters .............................................................................................................. 7 Abstracts: Plenary Addresses ................................................................................................... 19 McClintock Prize Talk ......................................................................................... 23 Short Talks .............................................................................................................. 24 Posters ..................................................................................................................... 53 Late Posters ............................................................................................................. 169 Author Index ........................................................................................................... 171 Participants .................................................................................................................... 182 Cover art by Haijun Liu National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University General Information Meeting Registration Thursday: 3:00 PM to 6:00 PM: There will be a table in the lobby of the hotel (see the plan of hotel level 1). 7:00 PM to 9:00PM: There will be a table in the lobby of the hotel (see the plan of hotel level 1). Friday: 7:00AM to 8:15AM: There will be a table in the lobby of the hotel (see the plan of hotel level 1). Meals All meals will be served in the hotel, in the Grand Ballroom and the Li Jiang multifunctional room; serving hours as listed in the Program. Coffee, tea and soft drinks are available at no charge during the beverage breaks. Talks and Posters All Talks will be presented in Convention Hall Number 2, on the second floor. Posters will be presented in the Exhibition Hall on the first floor. Posters should be hung Thursday starting at 3 PM and stay up until Sunday morning, but must be removed by 9 AM on Sunday. During poster sessions, presenters of odd number posters are asked to stand by their posters 1:30-3 PM on Friday and 3-4:30 PM on Saturday. Presenters of even numbered posters should stand by their posters 3-4:30 PM on Friday and 1:30-3 PM on Saturday. The maize meeting is a forum for presentation and discussion of unpublished material. Photographing or recording of talks and posters is not allowed. For authors who give permission to view electronic copies of oral and/or poster presentations, pdf files will be available at MaizeGDB shortly after the meeting at the following URL: http://maizegdb.org/maize_meeting/2014/downloads.php Hospitality After the evening sessions there will be informal socializing and poster gazing in the Exhibition Hall, with refreshments provided until 12:00 AM. After 12:00 AM, the Cafe Restaurant is available for continued socializing (see the plan of hotel level 1). Steering Committee Please share your suggestions and comments about the meeting with the 2014 Steering Committee Ann Stapleton, Chair ......... ([email protected]) Ex officio: Mark Settles, co-Chair ...... ([email protected]) Carson Andorf, abstract coordinator Jinsheng Lai, Local Host ... ([email protected]) Paula McSteen, Treasurer Peter Balint-Kurti .............. ([email protected]) Marty Sachs Alice Barkan .................... ([email protected]) Mary Schaeffer, abstract coordinator Phil Becraft Phil Becraft ... ([email protected]) Wes Bruce ......................... ([email protected]) Sherry Flint-Garcia ........... ([email protected]) Milena Ouzunova .............. ([email protected]) Ruairidh Sawers ................ ([email protected]) Amanda Wright ................. ([email protected]) Acknowledgements Many thanks go to Carson Andorf, Darwin Campbell, and Mary Schaeffer for their tremendous efforts in organizing, assembling, and advertising the conference program. We also thank Angela Freemyer and her team at the University of Missouri Conference Center for helping to organize the conference, handling registration and dealing with a multitude of other issues. Special thanks are also extended to Weibin Song and the CAU staff for their help in organizing this conference. iv Hotel Information: Beijing North Star Continental Grand Hotel Add:No.8 Beichen Dong Road, Chaoyang District, Beijing P. R. China 100101, Room Reservations:(8610)84980105 (8610)84985588--Room Reservation Dept E-mail:[email protected] Website:www.bcghotel.com 北辰五洲大酒店 地址：中国北京市朝阳区北辰东路 8 号 邮编：100101 散客订房：(8610)84980105 (8610)84985588 转 客房预订部 电子邮件：[email protected] 网 址：www.bcghotel.com v Hotel Maps: vi Map of convention center and hotel: The two buildings: The route between buildings: vii Convention center map (Main venue: 2nd floor): viii Exhibition Hall (Main venue: 1st floor): ix Hotel dining area map: x Registration and socializing area: xi Useful Links: 2014 Maize Meeting Website http://maizegdb.org/maize_meeting/2014 2015 Maize Meeting Website (Available November 2014) http://maizegdb.org/maize_meeting/2015 Abstract Book (Electronic version) http://maizegdb.org/maize_meeting/abstracts/2014Program.pdf Cover Image (High-quality color) http://maizegdb.org/ maize_meeting/coverart/ Upload poster or talk http://maizegdb.org/ maize_meeting/2014/downloads.php xii Schedule of Events Talks will be held in Convention Hall 2 on the second floor. Posters will be displayed in the Exhibition Hall on the first floor. Thursday, March 13 2:00 PM – 6:00 PM OPTIONAL PRE-CONFERENCE WORKSHOPS 12:00 PM – 2:00 PM Positional Cloning in Maize Workshop (Conference Room 303) 2:00 PM – 3:00 PM MaizeGDB Basics Workshop (Conference Room 303) 3:00 PM – 4:00 PM MaizeGDB Advanced Workshop (Conference Room 303) 4:00 PM – 6:00 PM Gramene Workshop (Conference Room 303) Pre-registration recommended for the above sessions. 3:00 PM – 6:00 PM REGISTRATION (Hotel Lobby) 3:00 PM – 6:00 PM POSTER HANGING (Exhibition Hall) 6:00 PM – 7:00 PM DINNER (Hotel Dining Rooms) 7:00 PM – 9:00 PM SESSION 1 – PLENARY TALKS Chair: Wes Bruce Pages 19 & 20 7:00 PM WELCOME AND ANNOUNCEMENTS (Convention Hall #2) Ann Stapleton and Wes Bruce 7:15 PM Tom Brutnell, Donald Danforth Plant Science Center [Plen 1] A systems approach to understanding photosynthetic differentiation in the grasses 8:05 PM Jiayang Li (李家洋), Chinese Academy of Sciences & Chinese Academy of Agricultural Sciences [Plen 2] Molecular basis for designing high-yield and good-quality rice 7:00 PM – 9:00 PM REGISTRATION (Hotel Lobby) 9:00 PM – 11:59 PM INFORMAL POSTER VIEWING & HOSPITALITY (Exhibition Hall) 12:00 AM HOSPITALITY (Café Restaurant) 1 Friday, March 14 7:00 AM – 8:00 AM BREAKFAST (Hotel Dining Rooms) 7:00 AM – 8:15 AM REGISTRATION (Hotel Lobby) 8:15 AM – 9:55 AM SESSION 2 - DEVELOPMENTAL GENETICS, QUANTITATIVE GENETICS I Chair: Peter Balint-Kurti Talks 1-5. Pages 24 - 28 8:00 AM ANNOUNCEMENTS (Convention Hall #2) Ann Stapleton and Jinsheng Lai 8:15 AM George Chuck, USDA-ARS [T1] The SPB-box transcription factors unbranched2 and unbranched3 function redundantly with tasselsheath4 to regulate plastochron index 8:35 AM Davide Sosso, Stanford University [T2] SWEET transporters and seed filling: tools for plants or opportunities for pathogens? 8:55 AM Andrea Gallavotti, Rutgers University [T3] Auxin signaling in the early steps of maize inflorescence development 9:15 AM Madelaine Bartlett, Brigham Young University [T4] The B-class mutant sterile tassel silky ear1 (sts1) provides a window into both conserved and divergent aspects of maize floral development 9:35 AM Rachel Egger, Stanford University [T5] Transcriptomes and Proteomes Define Gene Expression Progression in Pre-meiotic Maize Anthers 9:55 AM BREAK 10:30 AM – 12:10 PM SESSION 3 – DEVELOPMENTAL GENETICS, QUANTITATIVE GENETICS II Chair: Feng Tian Talks 6-10. Pages 29 - 33 10:30 AM Bao-Cai Tan, The Chinese University of Hong Kong [T6] Small kernel1 encodes a pentatricopeptide repeat protein required for mitochondrial nad7 transcript editing and seed development in maize and rice 10:50 AM Andrea Eveland, Cold Spring Harbor