Chromosome Karyotype Analysis and Evolutionary Trend of Half-Sib Families of Ancient Ginkgo Biloba L
Agriculture, Forestry and Fisheries
Volume 8, Issue 1, February 2019, Pages: 10-17
Received: Jan. 9, 2019;
Accepted: Feb. 16, 2019;
Published: Mar. 6, 2019
Views 156 Downloads 28
Sun Limin, Forestry College, Shandong Agricultural University, Tai’an, China
Dong Yao, Forestry College, Shandong Agricultural University, Tai’an, China
Sun Xia, College of Horticulture Science and Engineering, Shandong Agriculture University, Tai’an, China
Xing Shiyan, Forestry College, Shandong Agricultural University, Tai’an, China
Zhang Yiqun, Yaoxiang Forest Farm of Shandong Province, Tai’an, China
Zhao Jinhong, Taishan Academy of Forestry Sciences, Tai’an, China
The karyotype of 28 families from Shandong, Zhejiang, Guizhou and other 12 provinces exist in half-sib families of ancient Ginkgo biloba gemplasm repository was studied by squashing method with young leaves from these families. Results: The results showed that the number of chromosomes in 28 families was 2n=2x=24. The medium-short chromosomes and the medium-long chromosomes were dominant. The karyotype consists of three types: median region chromosome (m), submedian region chromosome (sm) and subterminal region chromosome (st). 71# family is the most primitive, while the 40# family is the most evolved. Families from southwestern China have a low degree of evolution, while those from eastern and southern China have a high degree of evolution.
Chromosome Karyotype Analysis and Evolutionary Trend of Half-Sib Families of Ancient Ginkgo Biloba L, Agriculture, Forestry and Fisheries.
Vol. 8, No. 1,
2019, pp. 10-17.
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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