Anatomy and Comparative Transcriptome Reveal the Mechanism of Male Sterility in Salvia miltiorrhiza
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Published:2023-06-17
Issue:12
Volume:24
Page:10259
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ISSN:1422-0067
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Container-title:International Journal of Molecular Sciences
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language:en
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Short-container-title:IJMS
Author:
Liao Jinqiu12ORCID, Zhang Zhizhou23, Shang Yukun12, Jiang Yuanyuan23, Su Zixuan12, Deng Xuexue23, Pu Xiang23, Yang Ruiwu12ORCID, Zhang Li23
Affiliation:
1. College of Life Science, Sichuan Agricultural University, Ya’an 625014, China 2. Sichuan Provincial Engineering Research Center for Breeding Technology of Authentic Traditional Chinese Medicine, Sichuan Agricultural University, Ya’an 625014, China 3. College of Science, Sichuan Agricultural University, Ya’an 625014, China
Abstract
Salvia miltiorrhiza Bunge is an important traditional herb. Salvia miltiorrhiza is distributed in the Sichuan province of China (here called SC). Under natural conditions, it does not bear seeds and its sterility mechanism is still unclear. Through artificial cross, there was defective pistil and partial pollen abortion in these plants. Electron microscopy results showed that the defective pollen wall was caused by delayed degradation of the tapetum. Due to the lack of starch and organelle, the abortive pollen grains showed shrinkage. RNA-seq was performed to explore the molecular mechanisms of pollen abortion. KEGG enrichment analysis suggested that the pathways of phytohormone, starch, lipid, pectin, and phenylpropanoid affected the fertility of S. miltiorrhiza. Moreover, some differentially expressed genes involved in starch synthesis and plant hormone signaling were identified. These results contribute to the molecular mechanism of pollen sterility and provide a more theoretical foundation for molecular-assisted breeding.
Funder
Sichuan Science and Technology Program National modern agricultural industry technology system Sichuan innovation team Sichuan Crops and Animals Breeding Special Project Featured Medicinal Plants Sharing and Service Platform of Sichuan Province
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis
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