Chromosome number of three Bambusa species (Poaceae) in northeastern communities of Thailand

Q2 Agricultural and Biological Sciences

Biodiversitas Pub Date : 2023-09-12 DOI:10.13057/biodiv/d240857

PIYAPORN SAENSOUK, SURAPON SAENSOUK, SUMRUAY SUDCHALEAW, SARAWOOD SUNGKAEW

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Abstract

Abstract. Saensouk P, Saensouk S, Sudchaleaw S, Sungkaew S. 2023. Chromosome number of three Bambusa species (Poaceae) in northeastern communities of Thailand. Biodiversitas 24: 4544-4547. Bambusa is a genus within subfamily Bambusoideae, family Poaceae. This study aimed to conduct the chromosome numbers of three Bambusa species in the northeastern Communities of Thailand. All three Bambusa species were studied with somatic chromosome numbers from root tips by squash methods. The somatic chromosome numbers, ploidy, and chromosome size in length from the root tips of three Bambusa species are provided. The somatic chromosome numbers range from 2n = 56 to 2n = 72. Bambusa bambos (L.) Voss was reported as 2n = 56 with high ploidy (heptaploid or 7x), B. burmanica Gamble was reported to be 2n = 72 with high ploidy (nonaploid or 9x), and B. tuldoides Munro was investigated to be 2n = 64 with high ploidy (octaploid or 8x). The basic chromosome number of three Bambusa species studied was x=8. The chromosome numbers of B. burmanica was studied for the first time. The chromosome length of all species was very short between 0.80 µm in B. burmanica and 1.30 µm in B. bambos.

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泰国东北部3种竹科植物的染色体数目

摘要新苏克P，新苏克S, Sudchaleaw S, sunkaew S. 2023。泰国东北部3种竹科植物的染色体数目。生物多样性24:4544-4547。竹属是竹科竹总亚科的一个属。本研究旨在对泰国东北部3个竹种的染色体数目进行研究。用南瓜法对3种竹的根尖进行了体细胞染色体数的研究。提供了3种竹的体细胞染色体数目、倍性和染色体长度大小。体细胞染色体数目从2n = 56到2n = 72不等。竹(L.)据报道，Voss为2n = 56，具有高倍性(七倍体或7x)， burmanica Gamble为2n = 72，具有高倍性(非单倍体或9x)， tuldoides Munro为2n = 64，具有高倍性(八倍体或8x)。3种竹的基本染色体数为x=8。本文首次对缅甸小蠊的染色体数目进行了研究。所有物种的染色体长度都很短，缅甸白刺的染色体长度为0.80µm，竹白刺的染色体长度为1.30µm。

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