Ovule number as a rising star for regulating seed yield:Hope or hype

Shahid Ullah Khan ¹Ahmad Ali ²Sumbul Saeed ³Yonghai Fan ⁴Ali Shehazd ⁴Hameed Gul ⁵Shah Fahad ⁶Kun Lu⁴

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作者信息

1. Integrative Science Center of Germplasm Creation in Western China(Chongqing)Science City and Southwest University,College of Agronomy and Biotechnology,Southwest University,Chongqing 400715,China;Engineering Research Center of South Upland Agriculture,Ministry of Education,Chongqing 400715,China;Women Medical and Dental College,Khyber Medical University,Peshawar,KPK 22020,Pakistan
2. National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,Wuhan 430070,China
3. School of Environment and Science,Griffith University,Nathan QLD 4111,Australia
4. Integrative Science Center of Germplasm Creation in Western China(Chongqing)Science City and Southwest University,College of Agronomy and Biotechnology,Southwest University,Chongqing 400715,China;Engineering Research Center of South Upland Agriculture,Ministry of Education,Chongqing 400715,China
5. College of Agronomy and Biotechnology,Southwest University,Chongqing 400715,China
6. Department of Agronomy,Abdul Wali Khan University Mardan,Khyber Pakhtunkhwa 23200,Pakistan;Department of Natural Sciences,Lebanese American University,Byblos,Lebanon
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Abstract

Rapeseed(Brassica napus L.)is the second most widely grown premium oilseed crop globally,mainly for its vegetable oil and protein meal.One of the main goals of breeders is producing high-yield rapeseed cultivars with sustainable production to meet the requirements of the fast-growing population.Besides the pod number,seeds per silique(SS),and thousand-seed weight(TSW),the ovule number(ON)is a decisive yield determining factor of individual plants and the final seed yield.In recent years,tremendous efforts have been made to dissect the genetic and molecular basis of these complex traits,but relatively few genes or loci controlling these traits have been reported thus far.This review highlights the updated information on the hormonal and molecular basis of ON and development in model plants(Arabidopsis thaliana).It also presents what is known about the hormonal,molecular,and genetic mechanism of ovule development and number,and bridges our understanding between the model plant species(A.thaliana)and cultivated species(B.napus).This report will open new pathways for primary and applied research in plant biology and benefit rapeseed breeding programs.This synopsis will stimulate research interest to further understand ovule number determination,its role in yield improvement,and its possible utilization in breeding programs.

Key words

Brassica napus/ovule number/genetics/ovule development/hormonal signaling

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基金项目

National Key Research and Development Program of China(2022YFD1200400)

National Natural Science Foundation of China(32272111)

Special fund for youth team of the Southwest Universities,China(SWU-XJPY202306)

Chongqing Natural Science Foundation,China(CSTB2024NSCQ-LZX0012)

Chongqing Modern Agricultural Industry Technology System,China(COMAITS202304)

Chongqing Germplasm Resource Bank,China(ZWZZ2020004)

Germplasm Creation Special Program of Southwest University,China()

出版年

2024

农业科学学报(英文)

中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD

影响因子：0.576

ISSN：2095-3119

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