Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)

Abstract Recombination hot spots (RHP), caused by meiosis, are considered to play crucial roles in improvement and domestication of crop. Cultivated peanut is one of the most important rich-source of oil and protein crops. However, no direct scale of recombination events and RHP have been estimated...

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Autores principales:	Xiaohua Wang, Ping Xu, Yan Ren, Liang Yin, Shuangling Li, Yan Wang, Yanmao Shi, Hui Li, Xue Cao, Xiaoyuan Chi, Tianyi Yu, Manish K. Pandey, Rajeev K. Varshney, Mei Yuan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/92dba3bd01d8493f95709476255fb797
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spelling	oai:doaj.org-article:92dba3bd01d8493f95709476255fb7972021-12-02T18:50:43ZGenome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)10.1038/s41598-020-70354-x2045-2322https://doaj.org/article/92dba3bd01d8493f95709476255fb7972020-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-70354-xhttps://doaj.org/toc/2045-2322Abstract Recombination hot spots (RHP), caused by meiosis, are considered to play crucial roles in improvement and domestication of crop. Cultivated peanut is one of the most important rich-source of oil and protein crops. However, no direct scale of recombination events and RHP have been estimated for peanut. To examine the scale of recombination events and RHP in peanut, a RIL population with 200 lines and a natural population with 49 cultivars were evaluated. The precise integrated map comprises 4837 SLAF markers with genetic length of 2915.46 cM and density of 1.66 markers per cM in whole genome. An average of 30.0 crossover (2.06 cMMb−1) events was detected per RIL plant. The crossover events (CE) showed uneven distribution among B sub-genome (2.32) and A sub-genome (1.85). There were 4.34% and 7.86% of the genome contained large numbers of CE (> 50 cMMb−1) along chromosomes in F6 and natural population, respectively. High density of CE regions called RHP, showed negative relationship to marker haplotypes conservative region but positive to heatmap of recombination. The genes located within the RHP regions by GO categories showed the responding of environmental stimuli, which suggested that recombination plays a crucial role in peanut adaptation to changing environmentsXiaohua WangPing XuYan RenLiang YinShuangling LiYan WangYanmao ShiHui LiXue CaoXiaoyuan ChiTianyi YuManish K. PandeyRajeev K. VarshneyMei YuanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaohua Wang Ping Xu Yan Ren Liang Yin Shuangling Li Yan Wang Yanmao Shi Hui Li Xue Cao Xiaoyuan Chi Tianyi Yu Manish K. Pandey Rajeev K. Varshney Mei Yuan Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
description	Abstract Recombination hot spots (RHP), caused by meiosis, are considered to play crucial roles in improvement and domestication of crop. Cultivated peanut is one of the most important rich-source of oil and protein crops. However, no direct scale of recombination events and RHP have been estimated for peanut. To examine the scale of recombination events and RHP in peanut, a RIL population with 200 lines and a natural population with 49 cultivars were evaluated. The precise integrated map comprises 4837 SLAF markers with genetic length of 2915.46 cM and density of 1.66 markers per cM in whole genome. An average of 30.0 crossover (2.06 cMMb−1) events was detected per RIL plant. The crossover events (CE) showed uneven distribution among B sub-genome (2.32) and A sub-genome (1.85). There were 4.34% and 7.86% of the genome contained large numbers of CE (> 50 cMMb−1) along chromosomes in F6 and natural population, respectively. High density of CE regions called RHP, showed negative relationship to marker haplotypes conservative region but positive to heatmap of recombination. The genes located within the RHP regions by GO categories showed the responding of environmental stimuli, which suggested that recombination plays a crucial role in peanut adaptation to changing environments
format	article
author	Xiaohua Wang Ping Xu Yan Ren Liang Yin Shuangling Li Yan Wang Yanmao Shi Hui Li Xue Cao Xiaoyuan Chi Tianyi Yu Manish K. Pandey Rajeev K. Varshney Mei Yuan
author_facet	Xiaohua Wang Ping Xu Yan Ren Liang Yin Shuangling Li Yan Wang Yanmao Shi Hui Li Xue Cao Xiaoyuan Chi Tianyi Yu Manish K. Pandey Rajeev K. Varshney Mei Yuan
author_sort	Xiaohua Wang
title	Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
title_short	Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
title_full	Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
title_fullStr	Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
title_full_unstemmed	Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)
title_sort	genome-wide identification of meiotic recombination hot spots detected by slaf in peanut (arachis hypogaea l.)
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/92dba3bd01d8493f95709476255fb797
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Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.)

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